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Home My WebLink About15-27Drainage Report for Polo Estates Subdivision Brazos County, Texas January 2015 Prepared By: , Scholtz Engineering, LLC TBPE Firm No. 12327 P.O. Box 11995 College Station, TX 77842 2730 Longmire Drive, Suite A College Station, Texas 77845 (979) 764-3900 Developer: Malechek & Westmoland Family LP 3850 Corporate Center Drive College Station, Texas 77845 Phone: (979) 690-2642 ENGINEER Schultz Engineering, LLC. P.O. Box 11995 Polo Estates Subdivision Drainage Report College Station, Texas 77842 Phone: (979) 764-3900 Fax: (979) 764 OWNER/DEVELOPER Malechek & Westmoland Family LP 3850 Corporate Center Drive College Station, Texas 77845 Phone: (979) 690-2642 GENERAL DESCRIPTION AND LOCATION Location: Description: • Area: • Proposed Land Use: • #of Lots: • Existing Land Use: • Land Description: Primary Drainage Facility: Flood Hazard Information: FEMAFIRM: Floodplain: Polo Estates Subdivision is located east of South Dowling Road and North Graham Road. 34.069 acres Single Family Residential 21 lots Vacant The terrain slopes towards the southwest. Boggy Creek # 48041C0375E (May 16, 2012) Un-shaded Zone X HYDROLOGIC CHARACTERISTICS The existing site is predominately wooded. The elevations range from 238 to 302, sloping generally in a south easterly direction. The runoff enters tributaries of Boggy Creek. GENERALSTORMWATERPLAN The drainage plan for this development will involve the construction of ditches, channels and the installation of culvert structures. DRAINAGE DESIGN General Information: Stormwater runoff from this project will be collected in the ditches along Mallet Way and Mallet Court to be discharged into proposed drainage channels. The proposed channels will discharge into existing drainage ways. See Exhibit A for drainage areas for the culvert design locations and the channel design locations. See Exhibit B for drainage areas for the ditch design. Page 1 of3 Tc Methodology: Tc Minimum Design Storm Event: Culvert Materials: ManningJs n Value: Runoff Coefficient: TR55 10 minutes 25-year & 100-year -residential street & culvert, drainage channel HDPE Pipe or ADS HP Pipe with cement stabilized sand backfill 0.012 0.45 The Rational Equation was used for the culvert, ditch and channel design. Design Results -Culvert Pipe: Design Results -Channels: Culvert No. 2 Culvert Size 1-18" Pipe s 1-18"Pipe Top of Road Elev. 288.59 290.18 Q2s 9.49 6.36 V2s 6.32 5.24 HW2s 287.44 288.29 Q100 11.25 7.56 V100 7.00 5.64 HW100 287.90 288.50 The data presented above and in the Appendices indicates the culvert sizes are in accordance with the requirements. The head water elevation for the culverts is less than the top of road elevation for the 100-yr storm runoff. The ditch at the outlet of the proposed culverts will be lined with rock riprap to prevent erosion from high velocities. The velocities in the roadside ditches are such that the ditches will not need rock riprap or erosion control blankets to control erosion. Channel No. 2 2.35 2.00 12.9S 13.02 3.40 3.2S O.S6 O.S8 lS.34 15.42 3.S7 3.42 0.61 0.63 Channel No. 1 is a trapezoid channel, SH: 1 V side slopes. The channel will have a minimum depth of 1.6' for adequate freeboard. The design velocity is 3.6 fps which is less than 4.S fps which would require curlex blankets to be installed the length of the drainage channels. Channel No. 2 is a trapezoid channel, SH: 1 V side slopes. The channel will have a minimum depth of 1.6' for adequate freeboard. The design velocity is 3.4 fps which is less than 4.S fps which would require curlex blankets to be installed the length of the drainage channels. Page 2of3 Applicable Exhibits: Exhibit A - Exhibit B - AppendixA- Appendix B- Appendix C- Appendix D- Appendix E - Drainage Area Map -Culvert and Channel Design Drainage Area Map -Roadside Ditch Design Drainage Area Summary Time of Concentration Computations Culvert Design Summary & Culvert Reports Ditch Design Summary Channel Design Summary and Reports CONCLUSION The culverts, roadside ditches, and drainage channel for this subdivision were designed in accordance with appropriate engineering standards. CERTIFICATION I, Joseph P. Schultz, Licensed Professional Engineer No. 65889, State of Texas, certify that this report for the drainage design for Polo Estates Subdivision, was prepared by me in accordance with the requirements of the Brazos County Road and Bridge Department. f'.:..·12327 SCHOLTZ: StGlN~lNQ, u.c; Page 3 of3 Exhibit A Drainage Area Map Culvert and Channel Design Exhibit B Drainage Area Map Roadside Ditch Design Appendix A Drainage Area Summary Polo Estates Subdivision Appendix A Drainage Area Summary Rational Method Area, A Area# (acres) 310 3.27 311 2.07 312 0.43 313 0.77 320 2.49 321 1.03 322 1.45 330 0.78 331 0.39 332 0.10 333 0.13 334 0.16 340 1.50 341 0.11 342 0.04 343 0.21 344 0.33 345 0.21 346 0.36 347 0.23 The Rational Method: Q =CIA Q =Flow (cfs) A = Area (acres)_ C = Runoff Coeff. I = Rainfall Intensity (in/hr) Brazos County: c tc 25 year storm 125 0 25 (min) (in/hr) (cfs) 0.45 24.0 6.448 9.49 0.45 24.0 6.448 6.01 0.45 18.0 7.521 1.46 0.45 10.0 9.861 3.42 0.45 30.0 5.675 6.36 0.45 30.0 5.675 2.63 0.45 27.0 6.033 3.94 0.45 10.0 9.861 3.46 0.45 10.0 9.861 1.73 0.45 10.0 9.861 0.44 0.45 10.0 9.861 0.58 0.45 10.0 9.861 0.71 0.45 10.0 9.861 6.66 0.45 10.0 9.861 0.49 0.45 10.0 9.861 0.18 0.45 10.0 9.861 0.93 0.45 10.0 9.861 1.46 0.45 10.0 9.861 0.93 0.45 10.0 9.861 1.60 0.45 10.0 9.861 1.02 I = b I (tc+d)0 tc =Time of concentration (min) 25 vear storm 100 year storm b = 89 b = 96 d = 8.5 d = 8.0 e= 0.754 e= 0.730 100 year storm 1100 0 100 (in/hr) (cfs) 7.647 11.25 7.647 7.12 8.899 1.72 11.639 4.03 6.746 7.56 6.746 3.13 7.163 4.67 11.639 4.09 11.639 2.04 11.639 0.52 11.639 0.68 11.639 0.84 11.639 7.86 11.639 0.58 11 .639 0.21 11.639 1.10 11 .639 1.73 11 .639 1.10 11 .639 1.89 11 .639 1.20 tc = U(V*60) L = Length (ft V = Velocity (ft/sec) Appendix B Time of Concentration Computations APPENDIX B POST DEVELOPMENT TIME OF CONCENTRATION COMPUTATIONS Polo Estates Subdivision T ,,_ = time of concentration for sheet flow (hr) L = length (ft) n = Manning's roughness P2 = 2-yr rainfall intensity (in/hr) for Brazos Co. = 4.5 in/hr S =slope (ft/fl) Sheet Flow Drainage n Length Slope T,._ Araa# fl % min. 310 "i· 0:24!1h:· ··~·1>200'" ,~ i""'r;1t3 "M 22 311 ,. •oa4 . \•"200\ ... 1:8 •• 22 312 0:24 " ""' 200: . 3> ~-~ 18 320 0.24 ·"' 200· 1'• .... 28 321 0.24 •1 •• 200 . : 1· . 28 322 CJ.21' ·."200. ~-1.3 25 Concentrated Flow Length Slope Velocity fl % fl/sec '''-'4:132 "" 2..71 .• 2.1 I '21 132' ,·;,·2.,71 . • ,,, '2.7 iii ,, ,f• , •• '"i' ,..,. ···~··""""' ':'--'¥· ., ;;,j.120-(.' ,, 1,7 • ~;1 "120"·, .... 1.t •. ''2.1 165 f." 1:3: 1.8 TR-55 Method V.,,.., = water velocity in ditch (ft/sec) S = slope of ditch (ft/fl) v.,._ =water velocity in gutter (ft/sec) S = slope of gutter (ft/fl) Gutter Flow -1 T.._ Length Slope Velocity min fl % fl/sec 1 .. :128 ·'''0.83 1.9 ., 1 +~""!''' >,;;'OJl3."1f 1?1?'1.9 •. ,. '"' ;7J'''Ji! U.29!"' :u·· 1 •• 1"116 '; .. 0.8':7 1.8 1 " -118 . :;.: •.0.8 f· ~~1;·1.8 1 '1:'18 " to-•; 1.73 ·'· 2.7 T- min 1 1 0 1 1 1 Length fl "' : T =travel time through ditch or gutter (min) L = length of travel path (ft) V =velocity (ft/sec) Gutter Flow -2 Slope Velocity T-Total % ft/sec min min " .• 24 ' .·;r ····iil >.1\1 "ll!:\11/ifii. :.•\. ;,;k 24 1; •••. ;• . ".: .. ~, . 18 '"" ...• ,; .' .. " 30 . lZ: . *'' .. · . .c ¢. 30 .; .,.., 27 T. Design min 24 2A ·• "18 .. 30 ' 30 'Z1 . Appendix C Culvert Design Summary & Culvert Reports Polo Estates Subdivision Appendix C Culvert Design Summary Pipe Pipe Size Length Slope Contributing Q25 V25 Q100 V100 No. Drainage (in) {ft) (Oft) Areas (cfs) (fps) (cfs) (fps) 1 18w 56 2.07 310 9.49 6.32 11.25 7.00 2 18w 54 0.80 320 6.36 5.24 7.56 5.64 Appendix D Ditch Design Summary Polo Estates Subdivision AppendixD Ditch Design Summary Street Ditch Location Slope Contributing Q25 v .. o,. Q, .. v, .. o, .. Street Stations Drainage Areas (Right/Left) (%) (cfs) (fps) (ft) (cfs) (fps) (ft) Mallet Way 0+00 Right 0.80 320,341,342 7.02 1.79 0.99 8.34 1.86 1.06 Mallet Way 0+62.66 Left 0.80 321 2.63 1.38 0.69 3.13 1.47 0.73 Mallet Way 0+62.66 Right 2.05 341 0.49 1.27 0.31 0.58 1.33 0.33 Mallet Way 0+62.66 Left 1.73 322 3.94 2.07 0.69 4.67 2.13 0.74 Mallet Way 6+64.36 Right 1.08 331 1.73 1.38 0.56 2.04 1.47 0.59 Mallet Way 6+64.36 Left 0.83 311 6.01 1.74 0.93 7.12 1.82 0.99 Mallet Way 6+64.36 Right 3.34 332,333 1.02 1.86 0.37 1.20 1.97 0.39 Mallet Way 6+64.36 Left 2.29 312,313 4.87 2.42 0.71 5.75 2.49 0.76 Mallet Way 7+75 Right 3.52 333 0.58 1.61 0.30 0.68 1.66 0.32 Mallet Way 7+75 Left 3.52 313 3.42 2.54 0.58 4.03 2.71 0.61 Mallet Court 2+50 Right 1.11 347 1.02 1.26 0.45 1.20 1.30 0.48 Mallet Court 2+80 Left 0.80 320,341,342,343 7.96 1.84 1.04 9.44 1.92 1.11 Mallet Court 6+71.78 Right 1.88 346,347 2.62 1.88 0.59 3.09 2.01 0.62 Mallet Court 6+71.78 Left 1.88 320:341,342,343,344 9.42 2.67 0.94 11 .17 2.79 1.00 *Note: Refer to plans for rock nprap and erosion control blanket locations 'I Appendix E Channel Design Summary & Reports Polo Estates Subdivision Appendix E Channel Design Summary Street Channel Shape Side Slope Slope Contributing Q25 v .. o .. Q, .. v, .. o, .. ("lo) Drainage Areas (cfs) (fps) (ft) (cfs) (fps) (ft) Channel No. 1 V-channel 5:1 2.35 310,330 12.95 3.40 0.56 15.34 3.57 0.61 Channel No. 2 V-channel 5:1 2.00 320,340 13.02 3.25 0.58 15.42 3.42 0.63 Channel Report , Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 1 -25 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z:1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 278.00 277.50 277.00 '\.. '\.. 276.50 276.00 275.50 275.00 0 2 '\.. '\ '\.. = 4.00 = 5.00, 5.00 = 1.50 = 275.62 = 2.35 = 0.035 Known Q = 12.95 ' '\.. '\ '\.. " '\.. '\ '\.. 4 6 8 Section "'7 - '\.. v " / 10 12 14 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) v / / / v / / / , / / / 16 18 20 / Thursday, Jan 15 2015 = 0.56 = 12.95 = 3.81 = 3.40 = 9.71 = 0.55 = 9.60 = 0.74 22 24 Depth (ft 2.38 1.88 1.38 0.88 0.38 -0.12 -0.62 Channel Report • Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 1 -100 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z:1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 278.00 277.50 277.00 276.50 276.00 275.50 275.00 0 ' 2 ' ' ' I'\. 4 = 4.00 = 5.00, 5.00 = 1.50 = 275.62 = 2.35 = 0.035 Known Q = 15.34 ' ' ' I" ' ' ' ' '\. '" 6 8 Section -v - v / 10 12 14 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) / / 17 / / ~ 17 / / / 16 18 / 17 / 20 Thursday, Jan 15 2015 = 0.61 = 15.34 = 4.30 = 3.57 = 10.22 = 0.60 = 10.10 = 0.81 22 24 Depth (ft 2.38 1.88 1.38 0.88 0.38 -0.12 -0.62 Channel Report .. Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 2 -25 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 275.00 274.50 274.00 273.50 273.00 272.50 0 ~ \.. 2 \.. '\ ' = 4.00 = 5.00, 5.00 = 1.50 = 273.04 = 2.00 = 0.035 Known Q = 13.02 \.. '\ ' ' \. '\. ' \.. ' "" '\ '\ " 4 6 8 Section v - 10 12 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) I / , / / / , , / / / x / / / , J ,, 14 16 18 20 Thursday, Jan 15 2015 = 0.58 = 13.02 = 4.00 = 3.25 = 9.91 = 0.55 = 9.80 = 0.74 22 24 Depth (ft 1.96 1.46 0.96 0.46 -0.04 -0.54 Channel Report , Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 2 -100 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 275.00 274.50 \. \. \. ' 274.00 273.50 273.00 272.50 0 2 = 4.00 = 5.00, 5.00 = 1.50 = 273.04 = 2.00 = 0.035 Known Q = 15.42 "' \. \. '\ '"' " \. \. ' " \. \. " 4 6 8 Section ~ -- 10 12 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) ~ I 7 , 7 7 I .I ' I I 7 / ' I I / , ' ,, 14 16 18 20 Thursday, Jan 15 2015 = 0.63 = 15.42 = 4.50 = 3.42 = 10.42 = 0.60 = 10.30 = 0.81 22 24 Depth {ft 1.96 1.46 0.96 0.46 -0.04 -0.54 Drainage Report for Polo Estates Subdivision Brazos County, Texas January 2015 Revised March 2015 Prepared By: Schultz Engineering, LLC TBPE Firm No. 12327 P.O. Box 11995 College Station, TX 77842 2730 Longmire Drive, Suite A College Station, Texas 77845 (979) 764-3900 Developer: Get Real, LLC 3850 Corporate Center Drive College Station, Texas 77845 Phone: (979) 690-2642 - Drainage Report for Polo Estates Subdivision Brazos County, Texas January 2015 Revised March 2015 Prepared By: ~-==--Schultz Engineerin g, LLC TBPE Firm No. 12327 P.O. Box 11995 College Station, TX 77842 2730 Longmire Drive, Suite A College Station, Texas 77845 (979) 764-3900 Developer: Get Real, LLC 3850 Corporate Center Drive College Station, Texas 77845 Phone: (979) 690-2642 - ENGINEER Schultz Engineering, LLC. P.O. Box 11995 Polo Estates Subdivision Drainage Report College Station, Texas 77842 Phone: (979) 764-3900 Fax: (979) 764 OWNER/DEVELOPER Get Real, LLC 3850 Corporate Center Drive College Station, Texas 77845 Phone: (979) 690-2642 GENERAL DESCRIPTION AND LOCATION Location: Description: • Area: • Proposed Land Use: • #of Lots: • Existing Land Use: • Land Description: Primary Drainage Facility: Flood Hazard Information: FEMAFIRM: Floodplain: Polo Estates Subdivision is located east of South Dowling Road and North Graham Road. 34.069 acres Single Family Residential 22 lots Vacant The terrain slopes towards the southwest. Hopes Creek # 48041 C0325E (May 16, 2012) Un-shaded Zone X HYDROLOGIC CHARACTERISTICS The existing site is predominately wooded. The elevations range from 266 to 294, sloping generally in a south easterly direction. The runoff enters tributaries of Hopes Creek. GENERALSTORMWATERPLAN The drainage plan for this development will involve the construction of ditches, channels and the installation of culvert structures. DRAINAGE DESIGN General Information: Stormwater runoff from this project will be collected in the ditches along Mallet Way and Mallet Court to be discharged into proposed drainage channels. The proposed channels will discharge into existing drainage ways. See Exhibit A for drainage areas for the culvert design locations and the channel design locations. See Exhibit B for drainage areas for the ditch design. Page 1 of3 - Tc Methodology: Tc Minimum Design Storm Event: Culvert Materials: Manning 's n Value: Runoff Coefficient: TR55 10 minutes 25-year & 100-year -residential street & culvert, drainage channel Culvert pipe material per Brazos County 0.012 0.45 The Rational Equation was used for the culvert, ditch and channel design. Design Results -Culvert Pipe: Culvert No. 2 3 Culvert Size 1-18" Pipe 1-18" Pipe 1-24" Pipe Top of Road Elev. 288.59 288 .59 276.43 Design Results -Channels: Q 25 9.49 8.89 13.33 V 2s 6.32 6.10 6.10 HW2s 287.44 287.24 275.06 Q 100 11.25 10.57 15.81 V 100 7.00 6.71 6.57 HW100 287.90 287.65 275.34 The data presented above and in the Appendices indicates the culvert sizes are in accordance with the requirements. The head water elevation for the culverts is less than the top of road elevation for the 100-yr storm runoff. The ditch at the outlet of the proposed culverts will be lined with rock riprap to prevent erosion from high velocities. The velocities in the roadside ditches are such that the ditches will not need rock riprap or erosion control blankets to control erosion. Channel No. 2 2.35 0.80 ~ 12.95 18.17 ----1 3.53 2.66 __, 0.58 0.90 ----1 21.52 __, 100 15.34 2.77 ----1 V100 3.73 D100 0.63 0.98 Channel No. 1 is a trapezoid channel, 4H: 1 V side slopes. The channel will have a minimum depth of 1.6' for adequate freeboard. The design velocity is 3.73 fps which is greater than 3.0 fps and less than 4.5 fps which requires curlex blankets to be installed the length of the drainage channels. Channel No. 2 is a trapezoid channel, 4H: 1 V side slopes. The channel will have a minimum depth of 2.0' for adequate freeboard. The design velocity is 2. 77 fps which is less than 4.5 fps which would require curlex blankets to be installed the length of the drainage channels. Page 2 of3 Applicable Exhibits: Exhibit A - Exhibit B - Appendix A- Appendix B - Appendix C - Appendix D- Appendix E - Drainage Area Map -Culvert and Channel Design Drainage Area Map -Roadside Ditch Design Drainage Area Summary Time of Concentration Computations Culvert Design Summary & Culvert Reports Ditch Design Summary Channel Design Summary and Reports CONCLUSION The culverts, roadside ditches, and drainage channel for this subdivision were designed in accordance with appropriate engineering standards. CERTIFICATION I, Joseph P. Schultz, Licensed Professional Engineer No. 65889, State of Texas, certify that this report for the drainage design for Polo Estates Subdivision, was prepared by me in accordance with the requirements of the Brazos County Road and Bridge Department. F;,..1~~11 SCHULl't ~GtNE~INC~ l.l.C. s Page 3of3 Exhibit A Drainage Area Map Culvert and Channel Design - Exhibit B Drainage Area Map Roadside Ditch Design - Appendix A Drainage Area Summary - Polo Estates Subdivision Appendix A Drainage Area Summary Rational Method Area, A c le 25 year storm Area# 125 0 25 (acres) (min) (in/hr) (cfs) 310 3.27 0.45 24.0 6.448 9.49 311 2.07 0.45 24.0 6.448 6.01 312 0.43 0.45 18.0 7.521 1.46 313 0.77 0.45 10.0 9.861 3.42 320 3.55 0.45 31.0 5.566 8.89 321 2.19 0.45 31.0 5.566 5.49 322 1.35 0.45 27.0 6.033 3.66 330 0.78 0.45 10.0 9.861 3.46 331 0.39 0.45 10.0 9.861 1.73 332 0.10 0.45 10.0 9.861 0.44 333 0.13 0.45 10.0 9.861 0.58 334 0.16 0.45 10.0 9.861 0.71 340 1.00 0.45 10.0 9.861 4.44 341 0.22 0.45 10.0 9.861 0.98 342 0.33 0.45 10.0 9.861 1.46 343 0.45 0.45 10.0 9.861 2.00 350 1.09 0.45 10.0 9.861 4.84 351 0.10 0.45 10.0 9.861 0.44 352 0.25 0.45 10.0 9.861 1.11 353 0.50 0.45 10.0 9.861 2.22 354 0.24 0.45 10.0 9.861 1.07 The Rational Method: Q = CIA I = b I (tc+d)0 Q =Flow (cfs) tc =Time of concentration (min) A = Area (acres) C = Runoff Coeff. I = Rainfall Intensity (in/hr) Brazos County: 25 '{.ear storm 100 '{.ear storm b= 89 b = 96 d= 8.5 d = 8.0 e= 0.754 e= 0.730 100 year storm 1100 0 100 (in/hr) (cfs) 7.647 11.25 7.647 7.12 8.899 1.72 11.639 4.03 6.619 10.57 6.619 6.52 7.163 4.35 11.639 4.09 11 .639 2.04 11 .639 0.52 11 .639 0.68 11 .639 0.84 11.639 5.24 11 .639 1.15 11 .639 1.73 11.639 2.36 11.639 5.71 11 .639 0.52 11 .639 1.31 11 .639 2.62 11 .639 1.26 1c = L/(V*60) L = Length (ft V =Velocity (ft/sec) - Appendix B Time of Concentration Computations APPENDIX B POST DEVELOPMENT TIME OF CONCENTRATION COMPUTATIONS Polo Estates Subdivision T,,,.., =time of concentration for sheet flow (hr) L = length (ft) n = Manning's roughness P2 = 2-yr rainfall intensity (in/hr) for Brazos Co. = 4.5 in/hr S = slope (ft/ft) Drainage Area # n Sheet Flow Length Slope T,._ ft % min. 310 0.24 200 1.8 22 311 0.24 200 1.8 22 312 0.24 200 3 18 320 0.24 200 1 28 321 0.24 200 1 28 322 0.24 200 1.3 25 Concentrated Flow Length Slope Velocity ft % ft/sec 132 2.77 2.7 132 2.77 2.7 96 1.4 1.9 96 1.4 1.9 165 1.3 1.8 TR-55 Method Vconc =water velocity in ditch (ft/sec) S = slope of ditch (ft/ft) VguttB• =water velocity in gutter (ft/sec) S = slope of gutter (ft/ft) Gutter Flow -1 T..,.._, Length Slope Velocity min ft % ft/sec 1 128 0.83 1.9 1 128 0.83 1.9 77 2.29 3.1 1 238 0.8 1.8 1 238 0.8 1.8 1 116 1.73 2.7 r.,,.. Length min ft 1 1 0 2 2 1 T =travel time through ditch or gutter (min) L = length of travel path (ft) V = velocity (ft/sec) Gutter Flow - 2 Slope Velocity T ,.,.. Total % ft/sec min min 24 24 18 31 31 27 T, Design min 24 24 18 31 31 27 Appendix C Culvert Design Summary & Culvert Reports ~---------------------------------------- Polo Estates Subdivision Appendix C Culvert Design Summary Pipe Pipe Size Length Slope Contributing 0 2s V2s 0 100 V100 No. Drainage (in) (ft) (%) Areas (cfs) (fps) (cfs) (fps) 1 18" 56 2.07 310 9.49 6.32 11.25 7.00 2 18" 62 0.80 320 8.89 6.10 10.57 6.71 3 24" 54 0.80 320,340 13.33 6.10 15.81 6.57 Culvert Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Culvert No. 1 -25 year Storm Invert Elev Dn (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span (in) No. Barrels n-Value Culvert Type Culvert Entrance Coeff. K,M ,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev (ft> = 284.14 = 56.00 = 2.07 = 285.30 = 18.0 = Circular = 18.0 = 1 = 0.012 = Circular Concrete = Square edge w/headwall (C) = 0.0098, 2, 0.0398, 0.67, 0.5 = 288.59 = 24.00 = 24.00 Culvert No. 1 -25 year Stonn Calculations Qmin (cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal ( cfs) Qpipe (cfs) Qovertop (cfs) Veloc Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime Friday, Dec 12 2014 = 9.49 = 11.25 = (dc+D)/2 = 9.49 = 9.49 = 0.00 = 5.68 = 6.32 = 285.48 = 286.49 = 287.44 = 1.42 = Inlet Control !-----+-----+-1.7ll !-----+-----+-0.70 233.00 --+---+--+-----+--+---+----1--+---+---+----+--+--+-----+--+---+-----4--2.30 0 10 16 20 26 30 36 40 60 66 60 70 75 00 --CircU!a.rCtlvert --HGL --Embank Reich (ft) Culvert Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Culvert No. 1 -100 year Storm Invert Elev Dn (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span (in) No. Barrels n-Value Culvert Type Culvert Entrance Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev(ft) 239Jl0 = 284.14 = 56.00 = 2.07 = 285.30 = 18.0 = Circular = 18.0 = 1 = 0.012 = Circular Concrete = Square edge w/headwall (C) = 0.0098, 2, 0.0398, 0.67, 0.5 = 288.59 = 24.00 = 24.00 Culvert No. 1 -100 year Storm Calculations Qmin (cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal ( cfs) Qpipe (cfs) Qovertop (cfs) Veloc Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime Friday, Dec 12 2014 = 9.49 = 11.25 = (dc+D)/2 = 11.25 = 11.25 = 0.00 = 6.58 = 7.00 = 285.53 = 286.58 = 287.90 = 1.74 = Inlet Control !----+---+-1.70 I---+---+-0.70 233.00 -t---t--+---t--+---+------1-----1--+--+--+----+--+--+---t--+---+-----ll---2.30 10 16 20 25 30 3fi 40 46 60 65 60 66 70 75 BO --Circu'la.rCldvert --HGL --Embank Resch (ft) Culvert Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Sunday, Mar 22 2015 Culvert No. 2 -25 year Storm Invert Elev Dn (ft) = 284.73 Calculations Pipe Length (ft) = 62.00 Qmin (cfs) = 8.89 Slope(%) = 0.81 Qmax (cfs) = 10.57 Invert Elev Up (ft) = 285.23 Tailwater Elev (ft) = (dc+D)/2 Rise (in) = 18.0 Shape = Circular Highlighted Span (in) = 18.0 Qtotal ( cfs) = 8.89 No. Barrels = 1 Qpipe (cfs) = 8.89 n-Value = 0.012 Qovertop ( cfs) = 0.00 Culvert Type = Circular Concrete Veloc Dn (ft/s) = 5.38 Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 6.10 Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 286.06 HGL Up (ft) = 286.38 Embankment Hw Elev (ft) = 287.24 Top Elevation (ft) = 288.59 Hw/D (ft) = 1.34 Top Width (ft) = 24.00 Flow Regime = Inlet Control Crest Width (ft) = 24.00 BOY C•) Culvert No. 2 -25 year Storm Hw Depltl <•> 2'1900 -------~-------~-------~-----3.77 1---+--+--o.n zas.oo -+------L J__,__,.-. ........ 9····F--=-=-F·-=·····::: ... r: ... :::::: ........ :::::: .. -.1--·=·-.. ·=-·-1--=·--=·---1 .... -r-.. ===-f·-=·--= ...... f ... -=-.. -=·-f-·--=--·= ........ ~ ...... :::: .. ·-~-.. 1--·-~·-··-~---+=t--0. 23 2~ 00 --+---+----t---+--+----+---+----t---+--+----+---+----t---+--+----+---+----t--1.23 2a3.00 --+---+-----+---+--+----+---+-----+---+--+----+---+-----+---+--+----+---+-----+--223 --CircUlarCulvert --HGL --Embank Re1cnf•I Culvert Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Sunday, Mar 22 2015 Culvert No. 2 -100 year Storm Invert Elev Dn (ft) = 284.73 Calculations Pipe Length (ft) = 62.00 Qmin (cfs) = 8.89 Slope(%) = 0.81 Qmax (cfs) = 10.57 Invert Elev Up (ft) = 285.23 Tailwater Elev (ft) = (dc+D)/2 Rise (in) = 18.0 Shape = Circular Highlighted Span (in) = 18.0 Qtotal ( cfs) = 10.56 No . Barrels = 1 Qpipe (cfs) = 10.56 n-Value = 0.012 Qovertop ( cfs) = 0.00 Culvert Type = Circular Concrete Veloc Dn (ft/s) = 6.23 Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 6.71 Coeff. K,M ,c,Y,k = 0.0098, 2, 0.0398, 0.67 , 0.5 HGL Dn (ft) = 286.10 HGL Up (ft) = 286.48 Embankment Hw Elev (ft) = 287.65 Top Elevation (ft) = 288.59 Hw/D (ft) = 1.61 Top Width (ft) = 24.00 Flow Regime = Inlet Control Crest Width (ft) = 24.00 Bow (ft) Culvert No. 2 -100 year S!Drm Hw Depth (ft) 2-39.oo -------~-------~-------~-----J.n I-----+--+-1.77 1-----+--+-o.n 2as.oo -t::----{__j _ _,....-r-~.,..--r-::':'.:--:='.--=J ... ::: __ --::-. T-r=:--r=:t=-:===_=f_ ==::_=J=_==:.-~. ~~;.,_f==i--0.23 233.00 --+---+----t--+--+-----+----+----t--+--+-----+----+----t--+--+-----+----+----t--2.23 --Cireu1a.rCUlvert --HGL --Embank Reoc'1(ft) Culvert Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Sunday, Mar 22 2015 Culvert No. 3 -25 year Storm Invert Elev On (ft) = 272.57 Calculations Pipe Length (ft) = 54.00 Qmin (cfs) = 13.33 Slope(%) = 0.80 Qmax (cfs) = 15.81 Invert Elev Up (ft) = 273.00 Tailwater Elev (ft) = (dc+0)/2 Rise (in) = 24.0 Shape = Circular Highlighted Span (in) = 24.0 Qtotal ( cfs) = 13.33 No. Barrels = 1 Qpipe (cfs) = 13.33 n-Value = 0.012 Qovertop ( cfs) = 0.00 Culvert Type = Circular Concrete Veloc On (ft/s) = 4.79 Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 6.10 Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67' 0.5 HGL On (ft) = 274.23 HGL Up (ft) = 274.31 Embankment Hw Elev (ft) = 275.06 Top Elevation (ft) = 276.43 Hw/O (ft) = 1.03 Top Width (ft) = 24 .00 Flow Regime = Inlet Control Crest Width (ft) = 24.00 Culvert No. 3 -25 year Storm 61N(ft) 2noo~-~-~-~~~~-~-~-~-~~-~-~-~-~~-•.oo H\tt Depth (ft) 2'7'.00 1.00 273.00 000 2noo --+---+---+---+----t--------+---+---+----+---+----+---+----+---+---+------i--1.00 .............................................................................................. _______ ....................... , .......................... .. :m.oo ---+----+----+---+------"f----+--+---+----+---+----+--+----+---+---+------4-.2.00 10 15 20 25 30 35 40 45 70 75 --Circula.rCU!vert --HGL --Embank Reacli (ft) Culvert Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Culvert No. 3 -100 year Storm Invert Elev On (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (i n) Shape Span (in) No. Barrels n-Value Culvert Type Culvert Entrance Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) 8BY(ft) 2n.oo 274.00 --+---I = 272.57 = 54.00 = 0.80 = 273.00 = 24.0 = Circular = 24.0 = 1 = 0.012 = Circular Concrete = Square edge w/headwall (C) = 0.0098, 2, 0.0398, 0.67, 0.5 = 276.43 = 24.00 = 24.00 Culvert No. 3 . 100 year Storm Calculations Qmin (cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal ( cfs) Qpipe (cfs) Qovertop ( cfs) Veloc On (ft/s) Veloc Up (ft/s) HGL On (ft) HGL Up (ft) Hw Elev (ft) Hw/O (ft) Flow .Regime = = = = = = = = = = = = = Sunday, Mar 22 2015 13.33 15.81 (dc+0)/2 15.81 15.81 0.00 5.51 6.57 274.29 274.43 275.34 1.17 Inlet Control HwOep\11 (ft) ~.00 11-t---+--2.00 !-+---+-1 00 273.00 --+--1-l-.,--~r--r--=r=---r-:--~=--r=i::=::~-=-==-=p-=-=----1··=------1-=i-000 2noo --+---+---+--+-----+---+---+---+--+---f----+---+---+---+--+-----+-.1.00 271.00 --+---+---+--+-----+---+---+---+--+---f----+---+---+---+--+-----+-·2.00 10 15 20 25 --CirCWarCulvert --HGL --Emblnk Reacl1 {ft) Appendix D Ditch Design Summary Polo Estates Subdivision Appendix D Ditch Design Summary Street Ditch Location Slope Contributing 02s v,. D2s 0100 v, •• o, •• Street Stations Drainage Areas (Right/Left) (%) (cfs) (fps) (ft) (cfs) (fps) (ft) Mallet Way 1+42.20 Right 0.80 341 0.98 1.06 0.48 1.15 1.11 0.51 Mallet Way 2+03.77 Left 0.80 321 5.49 0.90 1.69 6.52 1.77 0.96 Mallet Way 2+03.77 Right 3.87 351 0.44 1.63 0.26 0.52 1.66 0.28 Mallet Way 2+03.77 Left 3.44 322 3.66 2.63 0.59 4.35 2.74 0.63 Mallet Way 7+82.47 Right 1.08 331 1.73 1.38 0.56 2.04 1.47 0.59 Mallet Way 7+82.47 Left 0.83 311 6.01 1.74 0.93 7.12 1.82 0.99 Mallet Way 7+82.47 Right 3.35 332,333 1.02 1.86 0.37 1.20 1.97 0.39 Mallet Way 7+82.47 Left 2.36 312,313 4.87 2.42 0.71 5.75 2.56 0.75 Mallet Way 9+00 Right 3.52 333 0.58 1.61 0.30 0.68 1.66 0.32 Mallet Way 9+00 Left 3.52 313 3.42 2.54 0.58 4.03 2.71 0.61 Chukker Lane 3+39.79 Right 0.80 341 ,342 2.44 1.36 0.67 2.88 1.43 0.71 Chukker Lane 4+11.66 Left 0.80 351, 352, 320 10.45 1.98 1.15 12.41 2.05 1.23 Chukker Lane 9+21 .93 Right 1.88 341,342,343 4.44 2.20 0.71 5.24 2.27 0.76 Chukker Lane 9+21 .93 Left 1.88 351, 352, 353,320 12.66 2.87 1.05 15.03 3.00 1.12 *Note: Refer to plans for rock nprap and erosion control blanket locations **Note: The left ditch of Mallet Court has atleast 2' of depth for the entire length of street. Appendix E Channel Design Summary & Reports Polo Estates Subdivision Appendix E Channel Design Summary Street Side Slope Slope Contributing a,. v,. 025 Q 100 V100 D100 Channel Shape Drainage Areas (%) (cfs) (fps) (ft) (cfs) (fps) (ft) Channel No. 1 V-channel 4:1 2.35 310,330 12.95 3.53 0.58 15.34 3.73 0.63 Channel No. 2 V-channel 4:1 0.80 320,340,350 18.17 2.66 0.90 21.52 2.77 0.98 Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 1 -25 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 278.00 277.50 277.00 276.50 276.00 275.50 275.00 '\. 0 2 '\. '\. '\. = 4.00 = 4.00, 4.00 = 1.50 = 275.62 = 2.35 = 0.035 Known Q = 12.95 ' I'\. '\. '\. '\. " I'\. '\. '\. 4 6 Section °"V -= =- '\. " 8 10 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) I/ / / / / 17 7 / / / I/ 12 14 16 / 7 7 Sunday, Mar 22 2015 = 0.58 = 12.95 = 3.67 = 3.53 = 8.78 = 0.57 = 8.64 = 0.77 / 18 20 Depth (ft 2.38 1.88 1.38 0.88 0.38 -0.12 -0.62 Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 1 -100 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 278.00 277.50 277.00 276.50 276.00 275.50 275.00 0 I' 2 " " " = 4.00 = 4.00, 4.00 = 1.50 = 275.62 = 2.35 = 0.035 Known Q = 15.34 ' " " '\.. .... .... "\ "" " " 4 6 Section ~ '71' " " 8 10 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) v / / / I I v / / / / / 12 14 16 / / / Sunday, Mar 22 2015 = 0.63 = 15.34 = 4.11 = 3.73 = 9.20 = 0.63 = 9.04 = 0.85 / 18 20 Depth (ft 2.38 1.88 1.38 0.88 0.38 -0.12 -0.62 Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 2 -25 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 272.00 271 .50 271.00 270.50 270.00 269.50 \. \. \. 0 2 \. ' = 4.00 = 4.00, 4.00 = 1.50 = 270.01 = 0.80 = 0.035 Known Q = 18.17 I'\ \. \. \. ' ~ \. \. 4 6 Section ""-V -= i;:;- \. \ 8 10 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) / I / I I 17 7 7 7 / v 12 14 16 Sunday, Mar 22 2015 = 0.90 = 18.17 = 6.84 = 2.66 = 11.42 = 0.69 = 11.20 = 1.01 7 7 / / 18 Depth (fi 1.99 1.49 0.99 0.49 -0.01 -0.51 20 Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 2 -100 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 272.00 271.50 271 .00 270.50 270.00 269.50 \. \. \. \. 0 2 = 4.00 = 4.00, 4.00 = 1.50 = 270.01 = 0.80 ' = 0.035 Known Q = 21.52 I\. \. \. \. ' ~ \. \. 4 6 Section ~ 17 -= =- \. \ 8 10 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) / 7 / I I 17 7 7 7 / v 12 14 16 / / I Sunday, Mar 22 2015 = 0.98 = 21.52 = 7.76 = 2.77 = 12.08 = 0.75 = 11.84 = 1.10 I 18 20 Depth (ft 1.99 1.49 0.99 0.49 -0.01 -0.51 J Item SCHULTZ ENGINEERING, LLC. 2730 Longmire Drive, Suite A College Station, Texas 77845 Firm No. 12327 Polo Estates Subdivision Engineer's Estimate of Street Construction Description Ii Unit i Estimated J Unit Price i Quantity i Sitework & Pavement Total -···-·· __ . -~-~b.!~.i~~-t-~~!:1ff<>.~~~tic>.t?:_~-~i. ____ " ... ·-. ····-··. ___ . _ . ___ . . ~~ .. -_ .. __ ........ J -··-·· . . ? .59_0...:99 ·-···-· ____ 7.~?_0_o _____ 2 _____ ~_i!_~_P_r~p~~~tio~g-~~~~-~d qru~~~~--.... __ ··--··-.,·-· ·-·-. _ ..... 1\c;.. ···-·--··-·· .? ...... _____ }_2Q9.:QO ... _____ _7,1~9 ...... ~ ....... j.T.':?~s?.!!B-.~~Y..~!.~ .13-:~P~~~~~~L. __ . _ . _____ .. _ -·· __ -........ ··---~~-.......... --· ... ·-_l_ ·-·-·-··· ... ~ROO .OQ_ --·-· -~!.q_o_Q :=J=~l~;.~~~~~~~t:,!l?_~if.l~i~}~.d~ie··-·:·:~~-==~-·-:·:~:-~_-.:= ... _:J~~ -·----·-·s.47~ · -· · ·---1-!7-~li6 .... · ----1~~%j 6 I Hydrated Lime (27 lb/sy) Ton -.. ---.. ··· T15 ·-·-···----.. -·ii6:0o ____ io,7oo ~:-·x~.: i§.~~~¢~~~~ILn.;j;_s_t~.~~!3.~~~~-~-~:-.=.=·:.~·~: .. ·:=· :=-~::.:.=~:~:=·::~·.:·~~---= ~$.y_ : :· ~:~~= .. ?. ~~Ii :--~--~~--~_!_(QQ ~:-~:~~I:lI~ ....... ~-.... t ~o~<>.~~~:~E~!l~!!~--~~~~~~~~---· ---........ ._ ..... --------......... ~---~{-· .. ··-·· ____ 6, ~~¥ ·-·-.... ··--!~:~~ .... ,, .... 7 !:~6 -·····--··r=-··----·-·----·---···· ···--·~ -~-.. ------·-'"•••• ····---·-·· .. ·· ~ ................ _____ . ·-~····--···-· ... --·-----·--------·j....-·---·-·--·-··--------···---~·· -· 10 :ErosionControlBlanket SY 355 3.00 1,065 ~-.. _ _. ...... ,. -·····------.--......... ---------··"""----·-···------·-··-·--·-·"·-·-----·-·-.... .. . -· ··----·-.... ·-------. -· .. -·--· .. -----.. -· ··-. -., ______ , ...... _ 11 '.Seeding (edge of pavement to ROW & easements) SY 18,800 0.25 4,700 Sitework and Paving Subtotal $230,259 Drainage System 12 i 18" ADS HP Pipe -Structural Backfill LF 118 40.00 4,720 >---.. -·-·-i----·----------·-------·----...... --····----······-->-·----. -----·---------·-------··-13 ,24" ADS HP Pipe -Structural Backfill LF 54 50.00 2,700 --·--+-----· ----·----·----------· -·----·----· ---------·· -··-··-·---·-14 !Drainage Channel Excavation and Grading LF 599 8.00 4,792 -·-i5Ts\VPrifuij,!e;~t;ti~~-&Mam~ail~c~~~"ctk;ilF:~it ··· f--Ls--··-___ .. ______ i ~-2,000-:00 ---·2.ooo Drainage Subtotal $14,212 !!STREET ESTIMATED CONSTRUCTION TOTAL $244,4711 F'-12327 S.CH\JLTZ ENGINEERING, LI.Cf ; " I Item I I 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 15 16 17 18 19 20 21 22 23 24 SCHULTZ ENGINEERING, LLC. 2730 Longmire Drive, Suite A College Station, Texas 77845 Firm No.12327 Polo Estates Subdivision Engineer's Estimate of Waterline Construction Description Unit Estimated Quantity Water System 8" C900 Water Pipe -Non-Structural Backfill LF 1467 8" C900 Water Pipe -Structural Backfill LF 40 6" C900 Water Pipe -Non-Structural Backfill LF 829 Fire Hydrant Assembly (w/valve, vert. extension) EA 4 6" Tee - cut into existing line EA 2 8" x 8" M.J. Tee EA I 8" x 6" M.J. Tee EA 3 6" x 6" M.J. Tee EA I 8" x 6" M.J. Reducer EA 2 8" M.J. Gate Valve EA 4 6" M.J. Gate Valve EA 5 8" 11.25° M.J. Bend EA 2 8" 22.5° M.J. Bend EA 3 8" 45° M.J. Bend EA 9 6" 11.25° M.J. Bend EA 6 6" 22.5° M.J. Bend EA I 2" Blowoff Assembly EA I Connect to Existing Water Line EA 2 I" Water Service -long side EA I 4" PVC Sleeves EA 5 16" PVC Sleeve EA I 1.0" Water Service -short side EA 5 1.5" Water Service -short side EA 4 1.5'' Water Service -long side EA 4 Waterline Testing LS I Meter Boxes EA 22 Unit Price $24 $28 $22 $3,250 $2,000 $450 $450 $450 $450 $1,250 $950 $350 $350 $350 $275 $275 $1 ,250 $2,500 $850 $200 $500 $1,300 $1,300 $1 ,500 $1,000 $100 ESTIMATED WATERLINE CONSTRUCTION I Page 1 of 1 Total $35,208 $1 ,120 $18,238 $13,000 $4,000 $450 $1 ,350 $450 $900 $5,000 $4,750 $700 $1 ,050 $3,150 $1 ,650 $275 $1 ,250 $5,000 $850 $1 ,000 $500 $6,500 $5,200 $6,000 $1 ,000 $2,200 $120,7911 July 29, 2014 Mr. Stephen Cast Wellborn Special Utility District P.O. Box 250 Wellborn, Texas 77881 WINN PROFESSIONAL ENGINEERS AND CONSTRUCTORS, LLC RE: Graham Rd. and South Dowling Rd. Proposed Subdivision Service Study Dear Stephen: The current KYPipe. model for the Wellborn SUD Main System was used to perform a water service analysis for a proposed residential development located at the corner of Graham Rd. and South Dowling Rd. in the extraterritorial jurisdiction of College Station, Texas. According to a July 23, 2014 letter from the developer's engineerr the proposed residential development would serve 21 new connections within a 31.5 acre subdivision. Our analysis indicates that service is available for the proposed development to meet TCEQ requirements for residential use of 1.5 gpm per connection and a minimum residual pressure of 35 psi. Our analysis also indicates that service is available to provide the minimum fire flow requirements for the City of College Station. The City's fire flow requirements are to provide 1,000 gpm from two adjacent fire hydrants at a minimum operating pressure of 20 psi while supplying the maximum demand of 0.76 gpm per connection. Any dead end water lines within the proposed development providing supply to a fire hydrant need to be a minimum of 8" in diameter. lie-in to the Wellborn SUD water system can be made at the existing 6" line along Graham Rd. If a fire hydrant is required to provide service to the proposed lots numbered 15 and 16, it can be placed on the existing Wellborn SUD 6" line along South Dowling Rd. or Graham Rd. We appreciate the opportunity to provide this information. Please do not hesitate to call if you have any questions or comments. Sincerely yours, Winn Professional Engineers & Constructors, LLC Texas Registered Firm No. F-7846 Walt~P.E. Principal WTW/pkw 505 Padon • P. 0. Box 2727 • Longview, Texas 75(>06 t. 903-553-0500 • F. 903 -553-0555 • www:winnpec.com DATE: TO: FROM: SUBJECT: February 18, 2015 CITY OF COUEGE STATION Home a/Texas A&M University• MEMORANDUM Louis A Malechek, Ill, via; malechek@thepaynelawgroup.com / Jessica Bullock, Staff Planner POLO ESTATES (FP-REPLAT) Staff reviewed the above-mentioned final plat as requested. The following page is a list of staff review comments detailing items that need to be addressed. Please address the comments and submit the following information for further staff review and to be scheduled for a future Planning & Zoning Commission meeting: One (1) 24"x36" copy of the revised final plat; One (1) set of revised construction documents; Parkland Dedication in the amount of $$26,481 must be submitted prior to the filing of the final plat; Upon receipt of the required documents for the Planning & Zoning meeting, your project will be considered formally filed with the City of College Station . Please note that this application will expire in 90 days from the date of this memo, if the applicant has not provided written response comments and revised documents to the Administrator that seek to address the staff review comments contained herein. If all comments have not been addressed your project will not be scheduled for a Planning & Zoning Commission meeting. Your project may be placed on a future agenda once all the revisions have been made and the appropriate fees paid . Once your item has been scheduled for the P&Z meeting, the agenda and staff report can be accessed at the following web site on Monday the week of the P&Z meeting. http://www.cstx.gov/pz Please note that a Mylar original of the revised final plat will be required after P&Z approval and prior to the filing of the plat. If you have any questions or need additional information, please call me at 979. 764.3570. Attachments: Staff Review Comments j PC: Joe Schultz, Schultz Engineering, LLC , via; joeschultz84@verizon.net P&DS Project No. 15-00900027 Planning & Development Services P.O. BOX 9960 • l l 01 TEXAS AVENUE • COLLEGE STATION • TEXAS • 77842 TEL. 979.764.3570 ·FAX. 979.764.3496 cstx.gov/devservices STAFF REVIEW COMMENTS NO. 1 Project: Polo Estates (FP-Replat) (15-00900027) PLANNING 1. Meets and bounds do not close, please revise. 2. Right-of-way on N. Graham should be 77'. Half of the deficiency should be dedicated with this plat. 3. Please project a public street to the unplatted lots to the south, east, and west with a 70-foot right-of-way. As proposed the block length currently exceeds 1500 feet as the cul-de-sac does not break block length. 4. The proposed Mallet Court and Mallet Way all count as a cul-de-sac. The cul-de-sac cannot exceed cannot exceed 750 feet in length. 5. Lots around cul-de-sacs need to meet the 75-foot lot width as measured at the street. Lots 13-17 should be revised to meet the requirement of 100-foot lot width as measured at the street, 6. Lots platted adjacent to straight right of way (S. Dowling, Mallet Way, and Mallet Court) shall be substantially right angles. 7. Parkland in the amount of $26,481 ($1261x21) will be due upon filing of the final plat. 8. Please move the Certificate of the County Clerk to the other side of sheet two with the other certifications. 9. Please remove the Certificate of City Planner and add Certificate of Planning and Zoning Commission. 10. The building setback identified in note 15 are different from building setbacks on the original plat. Please confirm that this is current standards. 11 . All structures will need to be removed prior to the filing of the plat. 12. Please note that you may be required to submit paid tax certificates if they are not current prior to the filing of your plat. 13. Please note that any changes made to the plans that have not been requested by the City of College Station, must be explained in your next transmittal letter. 14. County comments are still being worked on and will follow. Reviewed by: Jessica Bullock Date: February 16, 2015 ENGINEERING COMMENTS NO. 1 1. Add a note on the Replat stating whose responsibility it is to maintain, and stating that fences, grading, and landscape cannot impede the flow of the private drainage easement. 2. Add a note on the Replat and construction documents regarding requirement for compaction of fill or engineered slab for affected lots that have greater than 2 feet of fill. Also list the lots that would require this. 3. Add a note on the Replat stating that the proposed lots can't be located further than 500' from a fire hydrants which is based on the lay of the hose along the street. 4. Remove FEMA Map with ending numbers, 375-E, from the Replat note. Subdivision appears to be not located on that map. 5. Cul-de sac's length is exceeding the allowed length in the UDO. 6. Please provide a private drainage easement for the estimated 100-year storm & the creek. Please show this on the Replat & Construction documents. 7. Change construction note #6 regarding Wickson SUD to Wellborn SUD. 8. Is the Overhead electric line a BTU line that is to remain or be relocated? Does it have an easement? If it does please show it on the Replat. 9. Please increase the symbol size for hydrants and gate valves on the overall plan. 10. Adjust Mallet Way grade at intersection with North Graham Road to have no more than plus or minus 2% grade. 11 . Provide horizontal curves for Mallet Way. 12. Entire Rock Rip Rap needs to be in a private drainage easement. See Chanel No . 1. 13. Provide erosional control measurements such as silt fences, hay bales, etc. 14. Provide an additional gate valve between Fire hydrant No 1 & 2. The gate valve spacing currently exceeds 800'. 15. Provide additional easement on lot 14, or realign the waterline W-2 in such a way that there's at least 5.5' clearance between the waterline's centerline & edge of PUE. 16. Please verify and place a note on plans that water services will be left between 2 & 3 feet deep at the point of terminus by developer's contractor. 17. According to the letter address to Stephen Cast, Fire hydrants need to be connected via 8" lines. What's the reason for connecting Fire hydrant No. 2 to only a 6" line? 18. Please provide a written correspondence with Wellborn SUD regarding the 1700' dead end line. 19. Please provide a Water system report. 20 . Please change Primary Drainage Facility to Hopes Creek & Firm panel# to 48041C0325E in the General description of the drainage report. 21 . Provide sealed engineer cost estimate, erosion control details. Reviewed by: Kevin Ferrer Date: February 16, 2015 ADDRESSING 1. Please change Mallet Way to Mallet Court. The street name should be continuous. Reviewed by: Robin Krause, Permit Technician Date: February 4, 2015 SANITATION 1. Sanitation is ok with this project. Reviewed by: Wally Urrutia Date: February 4, 2015 "" ·~ ·~-......... -----C ITY OF C OllEGE STATION Home of Texas A&M University" MEMORANDUM DATE: February 2, 2015 TO: Louis A. Malecheck, 111 , via; malecheck@thepaynelawgroup.com \/ FROM: Jessica Bullock, Staff Planner SUBJECT: POLO ESTATES (FP-REPLAT) Thank you for the submittal of your Final Plat -Residential application. Kevin Ferrer, Graduate Engineer, and I have been assigned to review this project. It is anticipated that the review will be completed and any staff comments returned to you on or before Monday, February 16, 2015. If you have questions in the meantime, please feel free to contact us. PC : Joe Schultz, Schultz Engineering, LLC, via ; joeschultz84@verizon.net v' P&DS Project No. 15-00900027 Pla11ni11g & Development Services P.O. BOX 9960 • 11 OJ TEXAS AVENUE · COllEGE STATlON ·TEXAS • 77842 TEL. 979.764.3570 ·FAX. 979.764.3496 csb1.gov/devservices <lgchultz Engineering, LLC January 16, 2015 Alan Gibbs, P .E. City Engineer Development Services City of College Station College Station, Texas Office: 979.764.3900 Fax: 979.764.3910 RE: Letter Acknowledging City Standards -Polo Estates, Brazos County, Texas Dear Mr. Gibbs: The purpose of this letter is to acknowledge that the construction plans for the water line, roadway and drainage construction for the above-referenced project, to the best of my knowledge, do not deviate from the B/CS Design Guideline Manual. seph P. Schultz, P .E. Civil Engineer P.O. Box 11995 • College Station, Texas 77842 schultzengineeringllc.com 1 Zoning Districts R -4 R R 91 R-6 e Estate: MHP RS Ru lct•d Subu b•n 0 GS Gene al Subu ba SC R - 1B Sing I• Family Res idential GC 0 Duplex Cl T Tcwnh'l>use BP vr DEVE LOPMENT REVIEW (./ f / Multi-Famliy y / ·~ 0.. BPI Hjgh Density Multi-Family NAP M1nuf1ctu e:d me:P1 C-l Offlc M-1 Subu bin C me clal M -2 Gene al C ommscial C -ll Commscial-lndustrisl R& 0 8 us in ess PSilc P-MllD PO LO ESTATES t /\ / / I .r / ( // ~ ~~,~ ' /,,,... ( " OUTSIDE Cl.l\HIMIT \!Jrj / "\ ~~ )-_____ / /\~i \ ;\\N') '/ \ \ ' \ IVY /\ I ~ (v ' /\'\_, Business Pa Industrial Na.tun I Areas Protecte-d l..lght Commetcisl l..lg ht lnduttJlal Heavy Indus ial College and llniv!!fS ity Research and Development \ ~~\ /\ v \ ./'\ \',. \\ \ i./ \ \ \ ~\ \ \\ \ " POD W PC G-1 G-2 G -3 ov ROD Pla nned Development Dis trict Wolf Pen t ee' Dev. C tid CCI orthget T11nslllon1 I 0tthg1ta Residential N thgate C'° id Ove lay Redev·elopm.ent Dist ict Planned Mixed-llse Development KO Kre nek Tap Overlay Case· FINA L PLAT 15-27 POLO ESTATES Case: FINA L PLAT DEVELOPMENT REV IEW 15-27 FOR OFFIC1 USE ~L CASE NO .: \ DA TE SUBMITTED: ......_....._.._.....'---'.__,,_..,___ C nv oF C oll.EGE STr\TION Home o/Texas A&M University• TIME:~ STAFF:~ FINAL PLAT APPLICATION (Check one) 0 Minor ($700) 0 Amending ($700) [gj Final ($932) 0 Vacating ($932) 0Replat ($932) Is this plat in the ET J? [81 Yes O No Is this plat Commercial D or Residential D / MINIMUM SUBMITTAL REQUIREMENTS: ~~ $700-$932 Final Plat Application Fee (see above). D $233 Waiver Request to Subdivision Regulations Fee (if applicable). D $600 (minimum) Development Permit Application I Public Infrastructure Review and Inspection Fee. Fee is 1 % of acceptable Engineer's Estimate for public infrastructure, $600 minimum (if fee is > $600, the balance is j6e prior to the issuance of any plans or development permit). ~Application completed in full. This application form provided by the City of College Station must be used and /lay not be adjusted or altered. Please attach pages if additional information is provided . ~ Six (6) folded copies of plat. (A signed mylar original must be submitted after approval.) [81 Two (2) copies of the grading, drainage, and erosion control plans with supporting drainage report. [81 Two (2) copies of the Public infrastructure plans and supporting documents (if applicable). [81 5 opy of original deed restrictions/covenants for replats (if applicable). J g Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate current within ninety (90) days. The report must include applicable information such as ownership, liens, . .1ncumbrances, etc. v [8( Paid tax certificates from City of College Station, Brazos County and College Station l.S.D. [81 The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not. NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be considered complete. If the mylar is submitted with the final plat application, it shall be considered a submittal for the preliminary plan project and processed and reviewed as such. Until the mylar has been confirmed by staff to be correct, the final plat application will be considered incomplete. Date of Optional Preapplication or Stormwater Management Conference NAME OF PROJECT Polo Estates ~-------------------------------~ ADDRESS North Graham Road SPECIFIED LOCATION OF PROPOSED PLAT: East of the intersection of North Graham Road and South Dowling Road APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): Name Louis A Malechellk, Ill E-mail malechefl<@thepaynelawgroup.com Street Address 3850 Corporate Center Drive City Bryan State Texas Zip Code 77802 ------ Phone Number 979. 776.9800 Fax Number 979. 731.8333 ~--------------- Revised 4/14 Page 1 of 9 PROPERTY OWNER'S INFORMATION (All owners must be identified. Please attach an additional sheet for multiple owners): Name Get Real, LLC E-mail malecheck@thepaynelawgroup.com Street Address 3850 Corporate Center Drive City Bryan State Texas Zip Code _7_78_0_2 ____ _ Phone Number 979. 776.9800 Fax Number 979. 731 .8333 ----------------- ARCHITECT OR ENGINEER'S INFORMATION: Name Schultz Engineering, LLC -Joe Schultz E-mail joeschultz842verizon.net Street Address 2730 Longmire Drive, Suite A City College Station State Texas Zip Code _7_7_84_5 ____ _ Phone Number (979) 764-3900 Fax Number (979) 764-3910 ----------------~ Do any deed restrictions or covenants exist for this property? D Yes [8J No Is there a temporary blanket easement on this property? If so, please provide the Volume ____ and Page No. __ _ Total No. of Lots 21 ------R-0-W Acreage 2. 762 --------Total Acreage 34.069 ---------- Existing Use horse stables Proposed Use _R_e_s1_·d_e_n_tia_I ____________ _ --------------~ Number of Lots By Zoning District nla Average Acreage Of Each Residential Lot By Zoning District: 1.491 I ETJ Floodplain Acreage _o __________________________________ _ Is there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels) on the property? r Yes IX No This information is necessary to help staff identify the appropriate standards to review the application and will be used to help determine if the application qualifies for vesting to a previous ordinance. Notwithstanding any assertion made, vesting is limited to that which is provided in Chapter 245 of the Texas Local Government Code or other applicable law. Is this application a continuation of a project that has received prior City platting approval(s) and you are requesting the application be reviewed under previous ordinance as applicable? IX Yes r No If yes, provide information regarding the first approved application and any related subsequent applications (provide additional sheets if necessary): Project Name: Foxworth Subdivision City Project Number (if known): Date I Timeframe when submitted: Revised 4/14 Page 2 of 9 A statement addressing any differences between the Final Plat and Preliminary Plan (if applicable): Re uested waiver to subdivision re ulations and reason for same (if a licable : Regarding the waiver request, explain how: 1. There are special circumstances or conditions affecting the land involved such that strict application of the subdivision re ulations will deprive the applicant of the reasonable use of his land. 3. The granting of the waiver will not be detrimental to the public health, safety, or welfare, or injurious to other property in the area, or to the City in administering subdivision regulations. 4. The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in accordance with the provisions of the Unified Development Ordinance. Fee in lieu of sidewalk construction is being requested because of the following condition (if applicable): 1. I An alternative pedestrian way or multi-use path has been or will be provided outside the right-of-way, 2. I The presence of unique or unusual topographic, vegetative, or other natural conditions exist so that strict adherence to the sidewalk requirements of the UDO is not physically feasible or is not in keeping with the purposes and goals of the UDO or the City's comprehensive Plan; 3. I A capital improvement project is imminent that will include construction of the required sidewalk. Imminent shall mean the project is funded or projected to commence within twelve (12) months; 4. I Existing streets constructed to rural section that are not identified on the Thoroughfare Plan with an estate I rural context; 5. l When a sidewalk is required along a street where a multi-use path is shown on the Bicycle, Pedestrian, and Greenways Master Plan; Revised 4/14 Page 3 of9 6. I The proposed development is within an older residential subdivision meeting the criteria in Platting and Replatting within Older Residential Subdivisions Section of the UDO; or 7. I The proposed development contains frontage on a Freeway I Expressway as designated by Map 6.6, Thoroughfare Plan -Functional Classification, in the City's Comprehensive Plan. Detailed explanation of condition identified above: NOTE: A waiver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered at the same time by the Planning & Zoning Commission. Total Linear Footage of Proposed Public: 1637 Streets NIA Sidewalks NIA Sanitary Sewer Lines 1715 Water Lines 519 Channels 110 Storm Sewers NIA Bike Lanes I Paths Parkland Dedication due prior to filing the Final Plat: ACREAGE: ___ No. of acres to be dedicated + $ ____ development fee ___ No. of acres in floodplain No. of acres in detention --- ---No. of acres in greenways OR FEE IN LIEU OF LAND: __ No. of SF Dwelling Units X $ = $ --------- (date) Approved by Parks & Recreation Advisory Board ---- NOTE: DIGITAL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING. The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are true, correct, and complete. IF THIS APPLICATION IS FILED BY ANYONE OTHER THAN THE OWNER OF THE PROPERTY, this application must be accompanied by a power of attorney statement from the owner. If there is more than one owner, all owners must sign the application or the power of attorney. If the owner is a company, the application must be accompanied by proof of authority for the company's representative to sign the application on its behalf. LIEN HOLDERS identified in the title report are also considered owners and the appropriate signatures must be provided as described above. Date Revised 4/14 Page 4 of 9 CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT Owner Certification: 1. No work of any kind may start until a permit is issued. 2. The permit may be revoked if any false statements are made herein. 3. If revoked, all work must cease until permit is re-issued. 4. Development shall not be used or occupied until a Certificate of Occupancy is issued. 5. The permit will expire if no significant work is progressing within 24 months of issuance. 6. Other permits may be required to fulfill local, state, and federal requirements. Owner will obtain or show compliance with all necessary State and Federal Permits prior to construction including NOi and SWPPP. 7. If required , Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pour) and post construction. 8. Owner hereby gives consent to City representatives to make reasonable inspections required to verify compliance. 9. If, stormwater mitigation is required, including detention ponds proposed as part of this project, it shall be designed and constructed first in the construction sequence of the project. 10. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to insure that all debris from construction, erosion, and sedimentation shall not be deposited in city streets, or existing drainage facilities. All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City of College Station shall apply. 11 . The information and conclusions contained in the attached plans and supporting documents will comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Design Guidelines Technical Specifications, and Standard Details. All development has been designed in accordance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 12. Release of plans to (name or firm) is authorized for bidding purposes only. I understand that final approval and release of plans and development for construction is contingent on contractor signature on approved Development Permit. 13. I, THE OWNER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATTACHMENTS FOR THE DEVELOPMENT PERMIT APPLICATION, ARE, TO THE BEST OF MY KNOWLEDGE, TRUE , AND ACCURATE. Property Owner(s) Date Engineer Certification: 1. The project has been designed to ensure that stormwater mitigation, including detention ponds, proposed as part of the project will be constructed first in the construction sequence. 2. I will obtain or can show compliance with all necessary Local, State and Federal Permits prior to construction including NOi and SWPPP. Design will not preclude compliance with TPDES: i.e., projects over 10 acres may require a sedimentation basin. 3. The information and conclusions contained in the attached plans and supporting documents comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Design Guidelines. All development has been designed in accordance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 4. I, THE ENGINEER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATTACHMENTS FOR THE DEVELOPM T P RMIT AP I ATION, ARE, TO THE BEST OF MY KNOWLEDGE, TRUE, AND AC URATE. Date Revised 4/14 Page 5 of 9 The following CERTIFICATIONS apply to development in Special Flood Hazard Areas. Required for Site Plans, Final Plats, Construction Plans, Fill /Grading Permits, and Clearing Only Permits:* certify, as demonstrated in the attached drainage study, that the alterations or development covered by this permit, shall not: (i) increase the Base Flood elevation; (ii) create additional areas of Special Flood Hazard Area; (iii) decrease the conveyance capacity to that part of the Special Flood Hazard Area that is not in the floodway and where the velocity of flow in the Base Flood event is greater than one foot per second. This area can also be approximated to be either areas within 100 feet of the boundary of the regulatory floodway or areas where the depth of from the BFE to natural ground is 18 inches or greater; (iv) reduce the Base Flood water storage volume to the part of the Special Flood Hazard Area that is beyond the floodway and conveyance area where the velocity of flow in the Base Flood is equal to and less than one foot per second without acceptable compensation as set forth in the City of College Station Code of Ordinances, Chapter 13 concerning encroachment into the Special Flood Hazard Area; nor (v) increase Base Flood velocities. beyond those areas exempted by ordinance in Section 5.11.3a of Chapter 13 Code of Ordinances. Engineer Date Initial D * If a platting-status exemption to this requ irement is asserted, provide written justification under separate letter in lieu of certification . Required for Site Plans, Final Plats, Construction Plans, and Fill/ Grading Permits: B. I, , certify to the following: (i) that any nonresidential or multi-family structure on or proposed to be on this site as part of this application is designed to prevent damage to the structure or its contents as a result of flooding from the 100-year storm . Engineer Date Additional certification for Floodway Encroachments: C. I, , certify that the construction, improvement, or fill covered by th is permit shall not increase the base flood elevation. I will apply for a variance to the Zoning Board of Adjustments. Engineer Date Revised 4/14 Page 6 of 9 Required for all projects proposing structures in Special Flood Hazard Area (Elevation Certificate required). Residential Structures: D. I, , certify that all new construction or any substantial improvement of any residential structure shall have the lowest floor, including all utilities, ductwork and any basement, at an elevation at least one foot above the Base Flood Elevation. Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-pour) and post construction. Engineer I Surveyor Date Commercial Structures: E. I, , certify that all new construction or any substantial improvement of any commercial , industrial, or other non-residential structure are designed to have the lowest floor, including all utilities, ductwork and basements, elevated at least one foot above the Base Flood Elevation Engineer I Surveyor Date OR I, , certify that the structure with its attendant utility, ductwork, basement and sanitary facilities is designed to be flood-proofed so that the structure and utilities, ductwork, basement and sanitary facilities are designed to be watertight and impermeable to the intrusion of water in all areas below the Base Flood Elevation, and shall resist the structural loads and buoyancy effects from the hydrostatic and hydrodynamic conditions. Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pour) and post construction. Engineer I Surveyor Date Conditions or comments as part of approval: Revised 4/14 Page 7 of 9 Existing [8J FINAL PLAT MINIMUM REQUIREMENTS (ALL CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: (Requirements based on field survey and marked by monuments and markers.) [8J Drawn on 24" x 36" sheet to scale of 100' per inch . [8J Vicinity map which includes enough of surrounding area to show general location of subject property in relationship to College Station and its City Limits. No scale required but include north arrow. [8J Title Block with the following information: [8J Name and address of subdivider, recorded owner, planner, engineer and surveyor. [8J Proposed name of subdivision. (Subdivision name & street names will be approved through Brazos County 911 .) [8J Date of preparation. [8J Engineer's scale in feet. [8J Total area intended to be developed. [8J North Arrow. [8J Subdivision boundary indicated by heavy lines. [8J If more than 1 sheet, an index sheet showing entire subdivision at a scale of 500 feet per inch or larger. [8J All applicable certifications based on the type of final plat. [8J Ownership and Dedication [8J Surveyor and/or Engineer [8J City Engineer (and City Planner, if a minor plat) 0 Planning and Zoning Commission (delete if minor plat) [8J Brazos County Clerk [8J Brazos County Commissioners Court Approval (ET J Plats only) 0 If submitting a replat where there are existing improvements, submit a survey of the subject property showing the improvements to ensure that no encroachments will be created. [8J If using private septic systems, add a general note on the plat that no private sewage facility may be installed on any lot in this subdivision without the issuance of a license by the Brazos County Health Unit under the provisions of the private facility regulations adopted by the Commissioner's Court of Brazos County, pursuant to the provisions of Section 21.084 of the Texas Water Code. [8J Location of the 100-Year Floodplain and floodway, if applicable, according to the most recent available data. [8J Lot corner markers and survey monuments (by symbol) and clearly tied to basic survey data. [8J Matches the approved preliminary plan or qualifies as minor amendments (UDO Section 3.3.E.2). The location and description with accurate dimensions, bearings or deflection angles and radii, area, center angle, degree of curvature, tangent distance and length of all curves for all of the following: (Show existing items that are intersecting or contiguous with the boundary of or forming a boundary with the subdivision, as well as , those within the subdivision). Proposed [8J Streets. Continuous or end in a cul-de-sac, stubbed out streets must end into a temp turn around unless they are shorter than 100 feet. Public and private R.O.W. locations and widths. (All existing and proposed R.O.W.'s sufficient to meet Thoroughfare Plan.) Street offsets and/or intersection angles meet ordinance. Revised 4/14 Page 8 of 9 Existing D ~ ~ D Proposed D ~ ~ D Alleys. Easements. A number or letter to identify each lot or site and each block (numbered sequentially). Parkland dedication/greenbelt area/park linkages. All proposed dedications must be reviewed by the Parks and Recreation Advisory Board and documentation of their recommendation provided prior to being scheduled for P&Z Commission consideration. ~ Construction documents for all public infrastructure drawn on 24" x 36" sheets and properly sealed by a Licensed Texas Professional Engineer that include the following: D D Street, alley and sidewalk plans, profiles and sections. One sheet must show the overall street, alley and/or sidewalk layout of the subdivision. (may be combined with other utilities). Sewer Design Report. Sanitary sewer plan and profile showing depth and grades. overall sewer layout of the subdivision. (Utilities of sufficient master plan and any future growth areas.) Water Design Report and/or Fire Flow Report. One sheet must show the size/depth to meet the utility Water line plan showing fire hydrants, valves, etc. with plan and profile lines showing depth and grades. One sheet must show the overall water layout of the subdivision. (Utilities of sufficient size/depth to meet the utility master plan and any future growth areas.) Storm drainage system plan with contours, street profile, inlets, storm sewer and drainage channels, with profiles and sections. Drainage and runoff areas, and runoff based on 5, 10, 25, 50 and 100 year rain intensity. Detailed drainage structure design, channel lining design & detention if used. One sheet must show the overall drainage layout of the subdivision. ~ Detailed cost estimates for all public infrastructure listed above sealed by Texas P.E. O Letter of completion for public infrastructure or guarantee I surety in accordance with UDO Section 8.6. ~ Drainage Report with a Technical Design Summary. ~ Erosion Control Plan (must be included in construction plans). ~ All off-site easements necessary for infrastructure construction must be shown on the final plat with a volume and page listed to indicate where the separate instrument easements were filed . Separate instrument easements must be provided in recordable form to the City prior to being scheduled for P&Z Commission consideration. ~ Are there impact fees associated with this development? 0 Yes ~ No Impact fees must be paid prior to building permit. ~ Will any construction occur in TxDOT rights-of-way? 0 Yes ~ No If yes, TxDOT permit must be submitted along with the construction documents. NOTE: 1. We will be requesting the corrected Final Plat to be submitted in digital form if available prior to filing Revised 4/14 the plat at the Courthouse. 2. If the construction area is greater than 5 acres, EPA Notice of Intent (NOi) must be submitted prior to issuance of a development permit. Print Form Page 9 of9 Date: File No.: Lawyers Title Company· of Brazos County 1450 Copperfield Parkway College Station, TX 77845 Phone: 979-776-3600 Fax: 979-776-2383 UPDATED TITLE REPORT January 22, 2015 GF No. M2448 Record Title at the Effective Date Hereof is Vested in: Get Real, LLC, a Texas limited liability company The Land Referred to In this Report is Described as Follows: All that certain lot, tract or parcel of land lying and situated in Brazos County, Texas, being Lot One (1), Foxworth Subdivision, a subdivision in Brazos County, Texas, according to the plat recorded in Volume 6050, Page 67, Official Records of Brazos County, Texas. · Exceptions:. Building lines, and any and all easements as reserved on plat recorded in Volume 6050, Page 67, Official Records of Brazos County, Texas. Right-of-Way Easement executed by Joseph S. Osoba, et al to The City of Bryan, dated October 18, 1976, recorded in Volume 361, Page 226, Deed Records of Brazos County, Texas. (Blanket) Easement executed by Connie Gail Hearne to Wellborn Water Supply Corporation, dated January 23, 1998, recorded in Volume 3020, Page 67, Official Records of Brazos County, Texas. Interest in coal, lignite, oil, gas and other minerals, and all rights incident thereto, contained in instrument dated February 3, 1940, recorded on July 1, 1940, in Volume 103, Page 611, Deed Records of Brazos County, Texas. Reference to which instrument is here made for particulars. No further search of title has been made as to the interest(s) evidenced by this instrument, and the Company makes no representation as to the ownership or holder of such interest(s). Interest in and to all coal, lignite, oil, gas and other minerals, and all rights incident thereto, contained in instrument dated May 5, 1984, recorded on May 31, 1984, in Volume 686, Page 837, Official Records of Brazos County, Texas. Reference to which instrument is here made for particulars. No further search of title has been made as to the interest(s) evidenced by this instrument, and the Company makes no representation as to the ownership or holder of such interest(s). Interest in and to all coal, lignite, oil, gas and other minerals, and all rights incident thereto, contained In instrument dated October 30, 1984, recorded on October 30, 1984, in Volume 737, Page 214, Official Records of Brazos County, Texas. Reference to which instrument is here made for particulars. No further search of title has been made as to the interest(s) evidenced by this instrument, and the Company makes no representation as to the ownership or holder of such interest(s). Interest in coal, lignite, oil, gas and other minerals, and all rights incident thereto, contained in instrument dated November 26, 1990, recorded on November 30, 1990, in Volume 1224, Page 187, Official Records of Brazos County, Texas. Reference to which instrument is here made for particulars. No further search of title has been made as to the interest(s) evidenced by this instrument, and the Company makes no representation as to the ownership or holder of such interest(s). Oil, Gas and Mineral Lease executed by C. N. Hielscher, et al to Threshold Exploration, Inc., dated December 1990, January 1991 and February 1991, recorded in Volume 1238, Pages 847, 861, 870, 873 and 875; Volume 1239, Pages 154 and 868; Volume 1246, Page 794, Official Records of Brazos County, Texas. No further search of title has been made as to the interest(s) evidenced by this instrument, and the Company makes no representation as to the ownership or holder of such interest(s). Oil, Gas and Mineral Lease executed by Connie Hearne, et al to Baker Exploration, dated December 17, 1993, recorded in Volume 2020, Pages 235, 238 and 241, Official Records of Brazos County, Texas. No further search of title has been made as to the interest(s) evidenced by this instrument, and the Company makes no representation as to the ownership or holder of such interest(s). All leases, grants, exceptions or reservations of coal, lignite, oil, gas and other minerals, together with all rights, privileges, and immunities relating thereto, appearing in the Public Records whether listed herein B or not. There may be leases, grants, exceptions or reservations of mineral interest that are not listed. Rights of parties in possession. Curative Matters: Vendor's lien retained in Deed executed by Bill Foxworth and wife, Gabriela Foxworth to Malechek & Westmoland Family, LP., a Texas limited partnership, dated October 1, 2007, recorded in Volume 8268, Page 20, Official Records of Brazos County, Texas; and additionally secured by a Deed of Trust executed by Malechek & Westmoland Family, L.P., a Texas limited partnership to Robert L. Upchurch, Ill, Trustee, for the benefit of First State Bank of Bedias, dated October 1, 2007, recorded in Volume 8268, Page 23, Official Records of Brazos County, Texas (in the amount of $300,000.00). Extension of Note and Lien executed by and between Malechek & Westmoland Family, LP., a Texas limited partnership (Borrower) and First State Bank of Bedias (Lender), with effective date of December 1, 2008, recorded in Volume 9272, Page 91, Official Records of Brazos County, Texas. Extension of Note and Lien executed by and between Malechek & Westmoland Family, LP., a Texas limited partnership (Borrower) and First State Bank of Bedias (Lender), with effective date of December 1, 2013, recorded in Volume 11817, Page 249, Official Records of Brazos County, Texas. Mechanic's Lien Contract executed by Get Real, LLC, a Texas limited liability company to Texcon Gneral Contractors, a Texas corporation, dated December 15, 2014, recorded in Volume 12435, Page 79, Official Records of Brazos County, Texas (in the amount of $500,000.00). Deed of Trust executed by Get Real, LLC to Walter S. Campbell, Trustee for the benefit of Malechek & Westmoland Family, L.P., dated December 15, 2014, recorded in Volume 12461 , Page 60, Official Records of Brazos County, Texas (in the amount of $1,000,000.00). THIS REPORT IS ISSUED WITH THE EXPRESS UNDERSTANDING, EVIDENCED BY THE ACCEPTANCE OF SAME, THAT THE UNDERSIGNED, LAWYERS TITLE COMPANY OF BRAZOS COUNTY DOES NOT UNDERTAKE HEREIN TO GIVE OR EXPRESS ANY OPINION AS TO THE VALIDITY OF THE TITLE TO THE PROPERTY ABOVE DESCRIBED, NOR AS TO THE VALIDITY OF ANY OF THE INSTRUMENTS REPORTED HEREIN, INCLUDING THE PURPORTED DEED(S) ESTABLISHING THE RECORD OWNER(S) CITED ABOVE, BUT IS SIMPLY REPORTING BRIEFLY HEREIN, AS TO THE INSTRUMENTS FOUNDS OF RECORD PERTAINING TO THE SUBJECT PROPERTY, AND IT IS EXPRESSLY UNDERSTOOD AND AGREED THAT THIS REPORT IS NEITHER A GUARANTY OR WARRANTY OF THE TITLE. Y ACCEPTANCE OF THIS TITLE REPORT, IT IS UNDERSTOOD THAT THE LIABILITY OF THE ISSUER HEREOF IS EXPRESSLY LIMITED TO $ THIS SEARCH HAS BEEN LIMITED TO THE ABOVE MATTERS AND THE ABOVE TIME PERIOD AND LAWYERS TITLE COMPANY OF BRAZOS COUNTY HAS NOT SEARCHED FOR, NOR HAS REFLECTED HEREIN, ANY EXAMINATION AS TO TAX SUITS, SPECIAL ASSESSMENTS, CONFLICTS OR OTHER INSTRUMENTS WHICH MAY AFFECT TITLE TO THE SUBJECT PROPERTY. IF TITLE INSURANCE COVERAGE, WHICH IS NOT PROVIDED BY THIS REPORT, IS NEEDED, SAID COVERAGE IS AVAILABLE THROUGH THE APPLICABLE PROMULGATED POLICY{IES), AT THE SPECIFIED PROMULGATED PREMIUM. OFFICIAL PUBLIC RECORDS OF BRAZOS COUNTY, TEXAS, HAVE BEEN CHECKED THROUGH January 12, 2015@7:00 a.m. Lawyers Title Company of Brazos County Through Tax Year 2014 TAX CERTIFICATE Certificate # 42808 Issued By: KRISTEEN ROE, CTA PH# (979) 361-4470 BRAZOS COUNTY TAX ASSESSOR COLLECTOR 300 E. WM . J BRYAN PKWY BRYAN, TX 77803 Owner ID: 434236 100.00% MALECH EK & WESTMOLAND FAMILY LP 3850 CORPORATE CENTER DR BRYAN , TX 77802-3696 Property ID: Legal Acres: Legal Desc: Situs: OBA: Exem tions: Property Information 300402 Geo ID: 277800-0000-0010 34.0820 FOXWORTH, LOT 1, ACRES 34.082 N GRAHAM RD , For Entities BRAZOS COUNTY COLLEGE STATION ISO EMG SVCS DIST #1 Value Information Improvement HS: Improvement NHS: Z REFUND ENTITY Land HS: Land NHS: Productivity Market: Productivity Use: Assessed Value 0 37,530 0 613,480 0 0 651,010 Current/Delinquent Taxes This is to certify that, after a careful check of the tax records of this office, the following delinquent taxes, penalties, interes and any known costs and expenses as provided by Tax Code §33.48, are due on the described property for the following taxing unit{s): Year Entity Totals: Effective Date: 01/14/2015 Tax Certificate Issued for: EMG SVCS DIST #1 BRAZOS COUNTY COLLEGE STATION ISD Taxable Taxes Paid in 2014 181.67 3,157.40 8,983.93 Tax Due 0.00 Disc./P&I 0.00 Attorney Fee 0.00 Total Due if paid by: 01/31/2015 This certificate is issued on real estate only. It does not include minerals and/or personal property. Total Due 0.00 0.00 If applicable, the above-described property has/is receiving special appraisal based on its use, and additional rollback taxes may become due based on the provisions of the special appraisal (Comptroller Rule 9.3040) or property omitted from the appraisal roll as described under Tax Code Section 25.21 is not included in this certificate [Tax Code Section 31.0S(b)]. Pursuant to Tax Code Section 31.08, if a person transfers property accompanied by a tax certificate that erroneously indicates that no delinquent taxes, penalties or interest are due a taxing unit on the property or that fails to include property because of its omission from an appraisal roll, the unit's tax lien on the property is extinguished and the purchaser of the property is absolved of liability to the unit for delinquent taxes, penalties or interest on the property or for taxes based on omitted property. The person who was liable for the tax for the ear the tax was im osed or the ro e was omitted remains ersonall liable for the tax and for an enalties or interest. A tax certificate issued through fraud or collusion is void. This certificate does not clear abuse of granted exemptions as defined in Section 11.43 Paragraph(1) of the Texas Property Tax Code. May Be Subject to Court Costs if Suit is Pending Date of Issue: Requested By: Fee Amount: Reference #: 01/14/2015 SCHULTZ ENGINEERING LLC 10.00 Page: 1 TrueAutom1tion,lnc. UNANIMOUS WRITTEN CONSENT IN LIEU OF ORGANIZATIONAL MEETING OF MANAGERS OF GET REAL, LLC A LIMITED LIABILITY COMPANY The undersigned, being the Managers named in GET REAL, LLC's (hereinafter the "Company") Certificate of Fonnation filed with the Secretary of State of Texas, hereby adopt the following resolutions in lieu of an organizational meeting of the Managers. CERTIFICATE OF FORMATION RESOLVED, that the acknowledgment of filing issued by the Secretary of State of Texas, and the ce1iified copy of the Certificate of Fonnation filed on December 17, 2014, are accepted and approved in all respects; and the Secretary is directed to place same in the Company record book. COMPANY AGREEMENT RESOLVED, that the form of the company agreement for regulating and managing Company affairs submitted to the undersigned is approved and adopted as the Company Agreement of the Company. RESOLVED, that the Secretary is directed to place the Company Agreement in the Company record book, and maintain a copy of the Company Agreement at the Company's principal office. PRINCIPAL OFFICE RESOLVED, that the Company's principal office be established and maintained at 3850 Corporate Center Drive, Bryan, Texas 77802, and that meetings of the Managers from time to time may be held either at the Company's principal office or at such other place as the Managers may select. MANAGERS RESOLVED, that the following persons are designated as Managers of the Company: Louis A. Malechek, III Louis A. Malechek, III, is authorized to borrow funds in the name of the Company for the operation and real estate purchases. The Manager is authorized to handle the day to day operations of the Company, including payment of debts and obligations, and purchases on behalf of the Company as needed. The Manager is authorized to issue and write check's on the Company's bank account( s ). The Manager is authorized to approve and sign any and all paperwork, real estate contracts, plats, real estate developmental documentation, necessary for the Company. MEMBERSHIP INTEREST CERTIFICATES RESOLVED, that the specimen membership interest certificate proposed for use as the Company's certificate for membership interest is adopted as the Company's fonn of Membership Interest Certificate; and RESOLVED FURTHER, that the specimen Membership Interest Certificate be appended to the minutes of the meeting. COMPANY RECORD BOOK RESOLVED, that the Company, through its Secretary, shall maintain and authenticate in the Company record book the appropriate business records, including but not limited to originals, copies or certified copies of the Company's Certificate of Formation, the Acknowledgment of Filing, the Company Agreement, the Membership Interest transfer ledger, minutes of the meetings and of other proceedings of the Members, Managers, and any committee established by the Managers; and RESOLVED FURTHER, that the Secretary is to maintain in the Company record book records pertaining to the issuance and transfer of Membership Interest in the Membership Interest Certificate stubs and Membership Interest transfer ledger respectively. MEMBERSHIP INTEREST ISSUED RESOLVED, that the Manager is authorized to issue from time to time authorized Membership Interests of the Company for money paid, labor done, promissory note, or personal property or real estate or leases thereof actually acquired and upon such te1ms as the Manager in his discretion may detennine; and RESOLVED FURTHER, than an offer be issued to the following to purchase one hundred percent (100%) of the Membership Interest of the Company in the percentages and for the consideration indicated opposite each name: Member's Name Member's Interest Consideration Louis A. Malechek, III 100% RESOLVED, that the Manager is authorized to issue additional Membership Interest to appropriately qualified purchasers. COMMENCING BUSINESS RESOLVED, that consideration has been received for the issuance of Membership Interest, and that the Company consequently is able to commence and transact business and to incur indebtedness. ORGANIZATIONAL EXPENSES RESOLVED, that the Manager is authorized to pay all charges and expenses incident to or arising out of the organization of and to reimburse any person who has made any disbursement therefor. BANK ACCOUNT RESOLVED, that the Manager is hereby authorized to open a bank account on the Company's behalf with any banks he deems appropriate. LICENSES AND PERMITS RESOLVED, that Company officers are directed to obtain in the Company's name such other licenses and tax permits as may be required for the conduct of Company business by any federal, state, county, 01· municipal governmental statute, ordinance, or regulations, and are directed and authorized to do all things necessary or convenient to qualify to transact Company business in compliance with the laws and regulations of any appropriate federal, state, or municipal governmental authority. OTHER STATES RESOLVED, that for the purpose of authorizing the Company to do business in any state, tenitory or dependency of the United States or any foreign country in which it is necessary or expedient for the Company to transact business, the proper Company officers are hereby authorized to appoint and substitute all necessary agents or attorneys for service of process, to designate and change the location of all necessary statutory offices and to make and file all necessary ce1tificates, reports, powers of attorney and other instruments as may be required by the laws of such state, territory, dependency or country to authorize the Company to transact business therein. TAX MATTERS PARTNER RESOLVED, that Louis A. Malechek, III, is designated as the 11Tax Matters Pai1ner" pursuant to Code Section 6231 (a)(7) for the Company. FISCAL YEAR .. RESOLVED1 that the Company fiscal year shall begin on January 1, and end on December 31, subject to change by resolution, as appropriate, at the discretion of the Manager. CARRY ON BUSINESS RESOLVED, that the signing of these minutes shall constitute full consent, confirmation, ratification,. adoption and approval of the holding of the above meeting, the actions hereby taken,. the resolutions herein adopted and waiver of notice of the meeting by the signatories. Dated: December 17, 2014 Louis A. Malechek, ill, Manager A true copy of each of the following papers referred to in the foregoing minutes is appended hereto; Specimen Membership Intei·est Certificate F:\L.A WIMOORE\l U,C\l~fs\.\iafe<hek-Gct Ru! LLC-tS.0027\Co Docs\t1naniJ119UsWrillen Consent-OrganiutloJ\11 Mt<tlnir!LLC).wpd Drainage Report for Polo Estates Subdivision Brazos County, Texas January 2015 Prepared By: . -',Schultz Eng:ineering, LLC TBPE Firm No. 12327 P.O. Box 11995 College Station, TX 77842 2730 Longmire Drive, Suite A College Station, Texas 77845 (979) 764-3900 Developer: Malechek & Westmoland Family LP 3850 Corporate Center Drive College Station, Texas 77845 Phone: (979) 690-2642 ENGINEER Schultz Engineering, LLC. P.O. Box 11995 Polo Estates Subdivision Drainage Report College Station, Texas 77842 Phone: (979) 764-3900 Fax: (979) 764 OWNER/DEVELOPER Malechek & Westmoland Family LP 3850 Corporate Center Drive College Station, Texas 77845 Phone: (979) 690-2642 GENERAL DESCRIPTION AND LOCATION Location: Description: • Area: • Proposed Land Use: • #of Lots: • Existing Land Use: • Land Description: Primary Drainage Facility: Flood Hazard Information: FEMAFIRM: Floodplain: Polo Estates Subdivision is located east of South Dowling Road and North Graham Road. 34.069 acres Single Family Residential 21 lots Vacant The terrain slopes towards the southwest. Boggy Creek # 48041C0375E (May 16, 2012) Un-shaded Zone X HYDROLOGIC CHARACTERISTICS The existing site is predominately wooded. The elevations range from 238 to 302, sloping generally in a south easterly direction. The runoff enters tributaries of Boggy Creek. GENERALSTORMWATERPLAN The drainage plan for this development will involve the construction of ditches, channels and the installation of culvert structures. DRAINAGE DESIGN General Information: Stormwater runoff from this project will be collected in the ditches along Mallet Way and Mallet Court to be discharged into proposed drainage channels. The proposed channels will discharge into existing drainage ways. See Exhibit A for drainage areas for the culvert design locations and the channel design locations. See Exhibit B for drainage areas for the ditch design. Page 1 of3 Tc Methodology: Tc Minimum Design Storm Event: Culvert Materials: Manning 's n Value: Runoff Coefficient: TR55 10 minutes 25-year & 100-year -residential street & culvert, drainage channel HDPE Pipe or ADS HP Pipe with cement stabilized sand backfill 0.012 0.45 The Rational Equation was used for the culvert, ditch and channel design. Design Results -Culvert Pipe: Design Results -Channels: Culvert No. 2 Culvert Size 1-18" Pipes 1-18" Pipe Top of Road Elev. 288.59 290.18 Q2s 9.49 6.36 V2s 6.32 5.24 HW2s 287.44 288.29 Q100 11 .25 7.56 V100 7.00 5.64 HW100 287.90 288.50 The data presented above and in the Appendices indicates the culvert sizes are in accordance with the requirements. The head water elevation for the culverts is less than the top of road elevation for the 100-yr storm runoff. The ditch at the outlet of the proposed culverts will be lined with rock riprap to prevent erosion from high velocities. The velocities in the roadside ditches are such that the ditches will not need rock riprap or erosion control blankets to control erosion. Channel No. 1 2 Slope 2.35 2.00 02~ 12.95 13 .02 V2s 3.40 3.25 D2s O.S6 O.S8 0100 lS.34 lS.42 V100 3.S7 3.42 D100 0.61 0.63 Channel No. 1 is a trapezoid channel, SH: 1 V side slopes. The channel will have a minimum depth of 1.6' for adequate freeboard. The design velocity is 3.6 fps which is less than 4.S fps which would require curlex blankets to be installed the length of the drainage channels. Channel No. 2 is a trapezoid channel, SH: 1 V side slopes. The channel will have a minimum depth of 1.6' for adequate freeboard. The design velocity is 3.4 fps which is less than 4.S fps which would require curlex blankets to be installed the length of the drainage channels. Page 2of3 Applicable Exhibits: Exhibit A - Exhibit B - AppendixA- Appendix B - Appendix C - Appendix D- Appendix E- Drainage Area Map -Culvert and Channel Design Drainage Area Map -Roadside Ditch Design Drainage Area Summary Time of Concentration Computations Culvert Design Summary & Culvert Reports Ditch Design Summary Channel Design Summary and Reports CONCLUSION The culverts, roadside ditches, and drainage channel for this subdivision were designed in accordance with appropriate engineering standards. CERTIFICATION I, Joseph P. Schultz, Licensed Professional Engineer No. 65889, State of Texas, certify that this report for the drainage design for Polo Estates Subdivision, was prepared by me in accordance with the requirements of the Brazos County Road and Bridge Department. f,';,..1:2327 SCHULTZ' .~Gi,..EEslNG, Li.;C; Page 3of3 Exhibit A Drainage Area Map Culvert and Channel Design Exhibit B Drainage Area Map Roadside Ditch Design Appendix A Drainage Area Summary Polo Estates Subdivision Appendix A Drainage Area Summary Rational Method Area, A Area# (acres) 310 3.27 311 2.07 312 0.43 313 0.77 320 2.49 321 1.03 322 1.45 330 0.78 331 0.39 332 0.10 333 0.13 334 0.16 340 1.50 341 0.11 342 0.04 343 0.21 344 0.33 345 0.21 346 0.36 347 0.23 The Rational Method: Q=CIA Q =Flow (cfs) A= Area (acres) C = Runoff Coeff. I = Rainfall Intensity (in/hr) Brazos County: c le 25 year storm 125 0 25 (min) (in/hr) (cfs) 0.45 24.0 6.448 9.49 0.45 24.0 6.448 6.01 0.45 18.0 7.521 1.46 0.45 10.0 9.861 3.42 0.45 30.0 5.675 6.36 0.45 30.0 5.675 2.63 0.45 27.0 6.033 3.94 0.45 10.0 9.861 3.46 0.45 10.0 9.861 1.73 0.45 10.0 9.861 0.44 0.45 10.0 9.861 0.58 0.45 10.0 9.861 0.71 0.45 10.0 9.861 6.66 0.45 10.0 9.861 0.49 0.45 10.0 9.861 0.18 0.45 10.0 9.861 0.93 0.45 10.0 9.861 1.46 0.45 10.0 9.861 0.93 0.45 10.0 9.861 1.60 0.45 10.0 9.861 1.02 I = b I (tc+d)9 tc =Time of concentration (min) 25 vear storm 100 vear storm b = 89 b = 96 d = 8.5 d = 8.0 e= 0.754 e= 0.730 100 year storm 1100 0 100 (in/hr) (cfs) 7.647 11.25 7.647 7.12 8.899 1.72 11 .639 4.03 6.746 7.56 6.746 3.13 7.163 4.67 11.639 4.09 11.639 2.04 11.639 0.52 11.639 0.68 11.639 0.84 11.639 7.86 11.639 0.58 11.639 0.21 11.639 1.10 11.639 1.73 11.639 1.10 11.639 1.89 11.639 1.20 le= U(V*60) L = Length (ft V = Velocity (ft/sec) Appendix B Time of Concentration Computations APPENDIX B POST DEVELOPMENT TIME OF CONCENTRATION COMPUTATIONS Polo Estates Subdivision T .._. = time of concentration for sheet flow (hr) L = length (ft) n = Manning's roughness P2 = 2-yr rainfall intensity (in/hr) for Brazos Co. = 4.5 in/hr S =slope (ft/ft) Sheet Flow Drainage n Length Slope r_ Areal ft % min. 310 0.24 200-· f•, 1.8 ";' 22 311 1"':1''Q..24 0·" 'llil!!l(·200:%!1 I~ {.f:&•oii"" 22 312 if 0;24 :· -::~ 1.:· .'3 .,_. 18 320 " 0.24 X200• I;> , ... 28 321 7· 0.24 · •,;.;•200 ,. I'·· 1 .' 28 322 Q..24 ' 200'" .1.3 25 Concentrated Flow Length Slope Velocity ft % ft/sec .. '132 ¥ i' 2.TT ~; 2.7 ;;: JiJfl\'132 •"11 ·* 12.'n f. '>i!lll'2.7 "ii>' J '" ''i!i ·~ .;: '• '"' .. ,~, 0.1'2G • 1.1•: • 2:1 . ,. '120·''••' .,,.,,7.~ ' 2.1 "" 165;.i .· 1.3; ~ •. t.8 J' TR-55 Method V.,,.. =water velocity in ditch (ft/sec) S = slope of ditch (ft/ft) v..-=water velocity in gutter (ft/sec) S = slope of gutter (ft/ft) Gutter Flow - 1 T..-Length Slope Velocity min ft % ft/sec 1 ,;''· 128 ·~·o.83 · , .. 1.9 ·, ., 1 i.'>+'128'. i l'ij4'#.83>1· ''""'·1~ '!!_•d-7'»> .. •.2.,29··· 3.1"'' 1 :· ''116.::.. 11.8':7:\ :1.e· . 1 1°•""' 118'" \ ..0.8 "" '•'1.8" 1 I-'" 118·. ;;> ':o.t.13 .,. 2.7' r- min 1 1 0 1 1 1 Length ft '·~' ··~ •Nt"~P'- '':>!'~ . .;: l•O: "" "· ~ ~"''· ' '-'·"J I., 5 T =travel time through ditch or gutter (min) L = length of travel path (ft) V =velocity (fVsec) Gutter Flow - 2 Slope Velocity T-Total % ft/sec min min .,.,!)-hk -· .. ,. .. . 24 --··•%.<' . .,,,, .. 24 ·,;,~""" ·~ 18 30 ·~ ... >~ ;; •: 30 ·' . 27 r. Design min ? 24 ,. 24 18 30 "• 30 ZI Appendix C Culvert Design Summary & Culvert Reports Polo Estates Subdivision Appendix C Culvert Design Summary Pipe Pipe Size Length Slope Contributing Qzs Vzs Q100 V100 No. Drainage (in) {ft) ('Yt) Areas (cfs) (fps) (cfs) (fps) 1 18" 56 2.07 310 9.49 6.32 11.25 7.00 2 18" 54 0.80 320 6.36 5.24 7.56 5.64 Appendix D Ditch Design Summary Polo Estates Subdivision AppendixD Ditch Design Summary Street Ditch Location Slope Contributing a .. v .. o .. a, .. v, .. o, .. Stniet Stations Drainage Areas (Right/Left) (%) (cfs) (fps) (ft) (cfs) (fps) (ft) Mallet Way 0+00 Right 0.80 320,341,342 7.02 1.79 0.99 8.34 1.86 1.06 Mallet Way 0+62.66 Left 0.80 321 2.63 1.38 0.69 3.13 1.47 0.73 Mallet Way 0+62.66 Right 2.05 .. 341 0.49 1.27 0.31 0.58 1.33 0.33 Mallet Way 0+62.66 Left 1.73 322 3.94 2.07 0.69 4.67 2.13 0.74 Mallet Way 6+64.36 Right 1.08 331 1.73 1.38 0.56 2.04 1.47 0.59 Mallet Way 6+64.36 Left 0.83 311 6.01 1.74 0.93 7.12 1.82 0.99 Mallet Way 6+64.36 Right 3.34 332,333 1.02 1.86 0.37 1.20 1.97 0.39 Mallet Way 6+64.36 Left 2.29 312,313 4.87 2.42 0.71 5.75 2.49 0.76 Mallet Way 7+75 Right 3.52 333 0.58 1.61 0.30 0.68 1.66 0.32 Mallet Way 7+75 Left 3.52 313 3.42 2.54 0.58 4.03 2.71 0.61 Mallet Court 2+50 Right 1.11 347 1.02 1.26 0.45 1.20 1.30 0.48 Mallet Court 2+80 Left 0.80 320,341,342,343 7.96 1.84 1.04 9.44 1.92 1.11 Mallet Court 6+71.78 Right 1.88 346,347 2.62 1.88 0.59 3.09 2.01 0.62 Mallet Court 6+71.78 Left 1.88 320,341,342,343,344 9.42 2.67 0.94 11 .17 2.79 1.00 *Note: Refer to plans for rock nprap and erosion control blanket locations Appendix E Channel Design Summary & Reports Polo Estates Subdivision Appendix E Channel Design Summary Street Channel Shape Side Slope Slope Contributing Q,. v,. o,. Q, .. v, .. o, .. (%) Drainage Areas (cfs) (fps) (ft) (cfs) (fps) (ft) Channel No. 1 V-channel 5:1 2.35 310,330 12.95 3.40 0.56 15.34 3.57 0.61 Channel No. 2 V-channel 5:1 2.00 320,340 13.02 3.25 0.58 15.42 3.42 0.63 Cl:lannel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 1 -25 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 278.00 277.50 277.00 276.50 276.00 275.50 275.00 0 ."\. 2 " " ' I"-. 4 = 4.00 = 5.00, 5.00 = 1.50 = 275.62 = 2.35 = 0.035 Known Q = 12.95 " "\. ' I"\. '-"\.. ' "\.. 6 8 Section '7 - " v '-/ 10 12 14 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) 7 / II' / / / 7 7 / / 16 18 / II' / 20 Thursday, Jan 15 2015 = 0.56 = 12.95 = 3.81 = 3.40 = 9.71 = 0.55 = 9.60 = 0.74 22 24 Depth (ft 2.38 1.88 1.38 0.88 0.38 -0.12 -0.62 C~annel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 1 -100 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 278.00 277.50 277.00 276.50 276.00 275.50 275.00 0 1'- 2 ' ' ' 1'- 4 = 4.00 = 5.00, 5.00 = 1.50 = 275.62 = 2.35 = 0.035 Known Q = 15.34 ' ' ' 1'- ' ' ' "' 6 8 Section -v - ' v ' / 10 12 14 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Grit Depth, Ye (ft) Top Width (ft) EGL (ft) 7 / I/ / 7 ~ I/ 7 / / 16 18 / I/ / 20 Thursday, Jan 15 2015 = 0.61 = 15.34 = 4.30 = 3.57 = 10.22 = 0.60 = 10.10 = 0.81 22 24 Depth (ft 2.38 1.88 1.38 0.88 0.38 -0.12 -0.62 Cl:lannel Report ~ Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 2 -25 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft) 275.00 274.50 274.00 273.50 273.00 272.50 0 ~ '\ 2 '\ '\ ' \. = 4.00 = 5.00, 5.00 = 1.50 = 273.04 = 2.00 = 0.035 Known Q = 13.02 '\ '\ '\ ' \. '\. \. \. ' "' \. \. " 4 6 8 Section v - 10 12 Reach (ft) Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Ye (ft) Top Width (ft) EGL (ft) , / JI/' / / / , / / / , / / / x J 14 16 18 20 Thursday, Jan 15 2015 = 0.58 = 13.02 = 4.00 = 3.25 = 9.91 = 0.55 = 9.80 = 0.74 22 24 Depth (ft 1.96 1.46 0.96 0.46 -0.04 -0.54 C.hannel Report ~ Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Polo Estates Subdivision -Channel No. 2 -100 Year Storm Trapezoidal Bottom Width (ft) Side Slopes (z: 1) Total Depth (ft) Invert Elev (ft} Slope(%) N-Value Calculations Compute by: Known Q ( cfs) Elev (ft} 275.00 "' 274.50 \. '\ '\ ' 274.00 273.50 273.00 272.50 0 2 = 4.00 = 5.00, 5.00 = 1.50 = 273.04 = 2.00 = 0.035 Known Q = 15.42 '\ '\ '\ ' " \. \. ' "" '\ '\ " 4 6 8 Section "'7 -- / 10 12 Reach (ft) Highlighted Depth (ft} Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft} Crit Depth, Ye (ft) Top Width (ft) EGL (ft} ' I / , / / / .v / 7 / :~ I I / ,v 14 16 18 20 Thursday, Jan 15 2015 = 0.63 = 15.42 = 4.50 = 3.42 = 10.42 = 0.60 = 10.30 = 0.81 22 24 Depth (ft 1.96 1.46 0.96 0.46 -0.04 -0.54 FOR OFFIC CASE NO.: TIME: CITY OF C OLLEGE ST1\TION Homt of Texas A&M Univmiry' (I '. STAFF: ~----=---,--~---~ 'f.evtseP FINAL PLAT APPLICATION (Check one) D Minor ($700) D Amending ($700) [XI Final ($932) D Vacating ($932) 0Replat ($932) Is this plat in the ET J? [81 Yes D No Is this plat Commercial D or Residential D MINIMUM SUBMITTAL REQUIREMENTS: [81 $700-$932 Final Plat Application Fee (see above). j8J $233 Waiver Request to Subdivision Regulations Fee (if applicable). D $600 (minimum) Development Permit Application I Public Infrastructure Review and Inspection Fee. Fee is 1 % of acceptable Engineer's Estimate for public infrastructure, $600 minimum (if fee is > $600, the balance is due prior to the issuance of any plans or development permit). [81 Application completed in full. This application form provided by the City of College Station must be used and may not be adjusted or altered. Please attach pages if additional information is provided . [81 Six (6) folded copies of plat. (A signed mylar original must be submitted after approval.) [81 Two (2) copies of the grading, drainage, and erosion control plans with supporting drainage report. [81 Two (2) copies of the Public infrastructure plans and supporting documents (if applicable). [81 Copy of original deed restrictions/covenants for replats (if applicable). [81 Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate current within nin ety (90) days. The report must include applicable information such as ownership, liens, encumbrances, etc. ~ Paid tax certificates from City of College Station, Brazos County and College Station l.S.D. ~ The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not. NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be considered complete. If the mylar is submitted with the final plat application, it shall be considered a submittal for the preliminary plan project and processed and reviewed as such. Until the mylar has been confirmed by staff to be correct, the final plat application will be considered incomplete. Date of Optional Preapplication or Stormwater Management Conference NAME OF PROJECT Polo Estates ~~--~~~--~~~~~~~~~~~~-~~~~~~~~~~~ ADDRESS North Graham Road SPECIFIED LOCATION OF PROPOSED PLAT: East of the intersection of North Graham Road and South Dowling Road APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): Name Louis A Malecheck, Ill E-mail malecheck@thepaynelawgroup.com Street Address 3850 Corporate Center Drive City Bryan State Texas Zip Code _7_78_0_2 ___ _ Phone Number 979. 776.9800 Fax Number 979. 731.8333 ~~~-~~~~~~--~-~~ Revised 4/14 Page 1 of9 PROPERTY OWNER'S INFORMATION (All owners must be identified. Please attach an additional sheet for multiple owners): Name Get Real, LLC E-mail malecheck@thepaynelawgroup.com Street Address 3850 Corporate Center Drive City Bryan state Texas Zip Code 77802 ------- Phone Number 979. 776.9800 Fax Number 979. 731.8333 ----------------- ARCHITECT OR ENGINEER'S INFORMATION: Name Schultz Engineering, LLC -Joe Schultz E-mail joeschultz842verizon.net Street Address 2730 Longmire Drive, Suite A City College Station State Texas Zip Code 77845 ------- Phone Number (979) 764-3900 Fax Number (979) 764-3910 ----------------~ Do a~y deed restrictions or covenants exist for this property? O Yes [8) No Is there a temporary blanket easement on this property? If so, please provide the Volume ____ and Page No. __ _ Total No. of Lots 21 ------R-0-W Acreage 2. 762 --------Total Acreage _34_._0_69 _______ _ Existing Use _h_or._s_e_s_ta_b_l_es _________ _ Proposed Use _R_e_s1_·d_e_nt_ia_I ____________ _ Number of Lots By Zoning District n/a I Average Acreage Of Each Residential Lot By Zoning District: 1.491 I ETJ I __ Floodplain Acreage _o __________________________________ _ Is there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels} on the property? r Yes IX No This information is necessary to help staff identify the appropriate standards to review the application and will be used to help determine if the application qualifies for vesting to a previous ordinance. Notwithstanding any assertion made, vesting is limited to that which is provided in Chapter 245 of the Texas Local Government Code or other applicable law. Is this application a continuation of a project that has received prior City platting approval(s) and you are requesting the application be reviewed under previous ordinance as applicable? JX Yes r No If yes, provide information regarding the first approved application and any related subsequent applications (provide additional sheets if necessary): Project Name: Foxworth Subdivision City Project Number (if known): Date I Timeframe when submitted: Revised 4/14 Page 2 of 9 A statement addressing any differences between the Final Plat and Preliminary Plan (if applicable): ength Regarding the waiver request, explain how: 1. There are special circumstances or conditions affecting the land involved such that strict application of the subdivision re ulations will de rive the a licant of the reasonable use of his land. ee Attached 2. The waiver is necessary for the preservation and enjoyment of a substantial property right of the applicant. ree Attached 3. The granting of the waiver will not be detrimental to the public health, safety, or welfare, or injurious to other property in the area, or to the City in administering subdivision regulations. ISee Attached 4. The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in accordance with the provisions of the Unified Development Ordinance. ISee Attached Fee in lieu of sidewalk construction is being requested because of the following condition (if applicable): 1. O An alternative pedestrian way or multi-use path has been or will be provided outside the right-of-way; 2. O The presence of unique or unusual topographic, vegetative, or other natural conditions exist so that strict adherence to the sidewalk requirements of the UDO is not physically feasible or is not in keeping with the purposes and goals of the UDO or the City's comprehensive Plan; 3. O A capital improvement project is imminent that will include construction of the required sidewalk. Imminent shall mean the project is funded or projected to commence within twelve (12) months; 4. O Existing streets constructed to rural section that are not identified on the Thoroughfare Plan with an estate I rural context; s. O When a sidewalk is required along a street where a multi-use path is shown on the Bicycle, Pedestrian, and Greenways Master Plan; Revised 4/14 Page 3 of 9 6. I The proposed development is within an older residential subdivision meeting the criteria in Platting and Replatting within Older Residential Subdivisions Section of the UDO; or 7. I The proposed development contains frontage on a Freeway I Expressway as designated by Map 6.6, Thoroughfare Plan -Functional Classification, in the City's Comprehensive Plan. Detailed explanation of condition identified above: NOTE: A waiver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered at the same time by the Planning & Zoning Commission. Total Linear Footage of Proposed Public: 1637 Streets . NIA Sidewalks NIA Sanitary Sewer Lines 1715 Water Lines 519 Channels __!_!..!!_Storm Sewers NIA Bike Lanes I Paths Parkland Dedication due prior to filing the Final Plat: ACREAGE: ___ No. of acres to be dedicated + $ ____ development fee ___ No. of acres in floodplain ___ No. of acres in detention ___ No. of acres in greenways OR FEE IN LIEU OF LAND: __ No. of SF Dwelling Units X $ ___ = $ _______ _ (date) Approved by Parks & Recreation Advisory Board ---- NOTE: DIGITAL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING. The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are true, correct, and complete. IF THIS APPLICATION IS FILED BY ANYONE OTHER THAN THE OWNER OF THE PROPERTY, this application must be accompanied by a power of attorney statement from the owner. If there is more than one owner, all owners must sign the application or the power of attorney. If the owner is a company, the application must be accompanied by proof of authority for the company's representative to sign the application on its behalf. LIEN HOLDERS identified in the title report are also considered owners and the appropriate signatures must be provided as described above. Date Revised 4/14 Page 4 of 9 CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT Owner Certification: 1. No work of any kind may start until a permit is issued. 2. The permit may be revoked if any false statements are made herein. 3. If revoked , all work must cease until permit is re-issued. 4. Development shall not be used or occupied until a Certificate of Occupancy is issued. 5. The permit will expire if no significant work is progressing within 24 months of issuance. 6. Other permits may be required to fulfill local, state, and federal requirements. Owner will obtain or show compliance with all necessary State and Federal Permits prior to construction including NOi and SWPPP. 7. If requ ired , Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pour) and post construction. 8. Owner hereby gives consent to City representatives to make reasonable inspections required to verify compliance. 9. If, stormwater mitigation is required, including detention ponds proposed as part of this project, it shall be designed and constructed first in the construction sequence of the project. 10. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that all debris from construction, erosion , and sedimentation shall not be deposited in city streets, or existing drainage facilities. All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City of College Station shall apply. 11 . The information and conclusions contained in the attached plans and supporting documents will comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Design Guidelines Technical Specifications, and Standard Details. All development has been designed in accordance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 12. Release of plans to (name or firm) is authorized for bidding purposes only. I understand that final approval and release of plans and development for construction is contingent on contractor signature on approved Development Permit. 13. I, THE OWNER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATIACHMENTS FOR THE DEVELOPMENT PERMIT APPLICATION, ARE, TO THE BEST OF MY KNOWLEDGE, TRUE, AND ACCURATE. Property Owner(s) Date Engineer Certification: 1. The project has been designed to ensure that stormwater mitigation, including detention ponds, proposed as part of the project will be constructed first in the construction sequence. 2. I will obtain or can show compliance with all necessary Local, State and Federal Permits prior to construction including NOi and SWPPP. Design will not preclude compliance with TPDES: i.e., projects over 10 acres may require a sedimentation basin. 3. The information and conclusions contained in the attached plans and supporting documents comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Design Guidelines. All development has been designed in accordance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 4. I, THE ENGINEER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATIACHMENTS FOR THE DEVELOPM T P RMIT ~~ l~~TION, ARE, TO THE BEST OF MY KNOWLEDGE, TRUE, AND AC URATE. --~~ OF ~\\~ ~--<..I'-.~········ ~-t: n.~ •• t;O OCJ~O ~{'\ ~~ * • 0 \). 0 . . ';) • ... * ~i) ;,o••J•O••S••E•s·•••••••o1110.o~ooc••o••~•"i~-qjJ. Date $. .. 0 ...... f.tl .. ~ .. SCHUL Tl ~9 ""O ~ "•· llOll••r.flf*o••Cl~~-e. Revised 4/1 4 Page 5 of 9 The following CERTIFICATIONS apply to development in Special Flood Hazard Areas. Required for Site Plans, Final Plats, Construction Plans, Fill/ Grading Permits, and Clearing Only Permits:* certify, as demonstrated in the attached drainage study, that the alterations or development covered by this permit, shall not: (i) increase the Base Flood elevation; (ii) create additional areas of Special Flood Hazard Area; (iii) decrease the conveyance capacity to that part of the Special Flood Hazard Area that is not in the floodway and where the velocity of flow in the Base Flood event is greater than one foot per second. Th is area can also be approximated to be either areas within 100 feet of the boundary of the regulatory floodway or areas where the depth of from the BFE to natural ground is 18 inches or greater; (iv) reduce the Base Flood water storage volume to the part of the Special Flood Hazard Area that is beyond the floodway and conveyance area where the velocity of flow in the Base Flood is equal to and less than one foot per second without acceptable compensation as set forth in the City of College Station Code of Ordinances, Chapter 13 concerning encroachment into the Special Flood Hazard Area; nor (v) increase Base Flood velocities. beyond those areas exempted by ordinance in Section 5.11 .3a of Chapter 13 Code of Ordinances. Engineer Date Initial D *If a platting-status exemption to this requirement is asserted, provide written justification under separate letter in lieu of certification. Required for Site Plans, Final Plats, Construction Plans, and Fill/ Grading Permits: 8. I, , certify to the following: (i) that any nonresidential or multi-family structure on or proposed to be on this site as part of th is application is designed to prevent damage to the structure or its contents as a result of flooding from the 100-year storm. Engineer Date Additional certification for Floodway Encroachments: C. I, , certify that the construction, improvement, or fill covered by this permit shall not increase the base flood elevation. I will apply for a variance to the Zoning Board of Adjustments. Engineer Date Revised 4/14 Page 6 of 9 Required for all projects proposing structures in Special Flood Hazard Area (Elevation Certificate required). Residential Structures: D. I, , certify that all new construction or any substantial improvement of any residential structure shall have the lowest floor, including all utilities, ductwork and any basement, at an elevation at least one foot above the Base Flood Elevation. Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-pour) and post construction. Engineer I Surveyor Date Commercial Structures: E. I, ---------------- , certify that all new construction or any substantial improvement of any commercial, industrial, or other non-residential structure are designed to have the lowest floor, including all utilities, ductwork and basements, elevated at least one foot above the Base Flood Elevation Engineer I Surveyor Date OR I, , certify that the structure with its attendant utility, ductwork, basement and sanitary facilities is designed to be flood-proofed so that the structure and utilities, ductwork, basement and sanitary facilities are designed to be watertight and impermeable to the intrusion of water in all areas below the Base Flood Elevation, and shall resist the structural loads and buoyancy effects from the hydrostatic and hydrodynamic conditions. Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pour) and post construction. Engineer I Surveyor Date Conditions or comments as part of approval: Revised 4/14 Page 7 of 9 Existing [8J FINAL PLAT MINIMUM REQUIREMENTS (ALL CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: (Requirements based on field survey and marked by monuments and markers.) [8J Drawn on 24" x 36" sheet to scale of 100' per inch. [8J Vicinity map which includes enough of surrounding area to show general location of subject property in relationship to College Station and its City Limits. No scale required but include north arrow. [8J Title Block with the following information: [8J Name and address of subdivider, recorded owner, planner, engineer and surveyor. [8J Proposed name of subdivision. (Subdivision name & street names will be approved through Brazos County 911 .) [8J Date of preparation . [8J Engineer's scale in feet. [8J Total area intended to be developed. [8J North Arrow. [8J Subdivision boundary indicated by heavy lines. [8J If more than 1 sheet, an index sheet showing entire subdivision at a scale of 500 feet per inch or larger. [8J All applicable certifications based on the type of final plat. [8J Ownership and Dedication [8J Surveyor and/or Engineer [8J City Engineer (and City Planner, if a minor plat) D Planning and Zoning Commission (delete if minor plat) [8J Brazos County Clerk [8J Brazos County Commissioners Court Approval (ET J Plats only) D If submitting a replat where there are existing improvements, submit a survey of the subject property showing the improvements to ensure that no encroachments will be created. [8J If using private septic systems, add a general note on the plat that no private sewage facility may be installed on any lot in this subdivision without the issuance of a license by the Brazos County Health Unit under the provisions of the private facility regulations adopted by the Commissioner's Court of Brazos County, pursuant to the provisions of Section 21 .084 of the Texas Water Code. [8J Location of the 100-Year Floodplain and floodway, if applicable, according to the most recent available data. [8J Lot corner markers and survey monuments (by symbol) and clearly tied to basic survey data. [8J Matches the approved preliminary plan or qualifies as minor amendments (UDO Section 3.3.E.2). The location and description with accurate dimensions, bearings or deflection angles and radii, area, center angle, degree of curvature, tangent distance and length of all curves for all of the following: (Show existing items that are intersecting or contiguous with the boundary of or forming a boundary with the subdivision, as well as, those within the subdivision). Proposed [8J Streets. Continuous or end in a cul-de-sac, stubbed out streets must end into a temp turn around unless they are shorter than 100 feet. Public and private R.O.W. locations and widths. (All existing and proposed R.O .W.'s sufficient to meet Thoroughfare Plan .) Street offsets and/or intersection angles meet ordinance. Revised 4/14 Page 8 of 9 Existing D (8) (8) D Proposed D (8) (8) D Alleys. Easements. A number or letter to identify each lot or site and each block (numbered sequentially}. Parkland dedication/greenbelt area/park linkages. All proposed dedications must be reviewed by the Parks and Recreation Advisory Board and documentation of their recommendation provided prior to being scheduled for P&Z Commission consideration. (8) Construction documents for all public infrastructure drawn on 24" x 36" sheets and properly sealed by a Licensed Texas Professional Engineer that include the following: (8) Street, alley and sidewalk plans, profiles and sections. One sheet must show the overall street, alley and/or sidewalk layout of the subdivision. (may be combined with other utilities). D D Sewer Design Report. Sanitary sewer plan and profile showing depth and grades . One sheet must show the overall sewer layout of the subdivision. (Utilities of sufficient size/depth to meet the utility master plan and any future growth areas.) Water Design Report and/or Fire Flow Report. Water line plan showing fire hydrants, valves, etc. with plan and profile lines showing depth and grades. One sheet must show the overall water layout of the subdivision. (Utilities of sufficient size/depth to meet the utility master plan and any future growth areas.) Storm drainage system plan with contours , street profile, inlets, storm sewer and drainage channels, with profiles and sections. Drainage and runoff areas, and runoff based on 5, 10, 25, 50 and 100 year rain intensity. Detailed drainage structure design, channel lining design & detention if used. One sheet must show the overall drainage layout of the subdivision . ~ Detailed cost estimates for all public infrastructure listed above sealed by Texas P.E. 0 Letter of completion for public infrastructure or guarantee I surety in accordance with UDO Section 8.6. ~ Drainage Report with a Technical Design Summary. ~ Erosion Control Plan (must be included in construction plans). ~ All off-site easements necessary for infrastructure construction must be shown on the final plat with a volume and page listed to indicate where the separate instrument easements were filed. Separate instrument easements must be provided in recordable form to the City prior to being scheduled for P&Z Commission consideration. ~ Are there impact fees associated with this development? 0 Yes ~ No Impact fees must be paid prior to building permit. ~ Will any construction occur in TxDOT rights-of-way? 0 Yes ~ No If yes, TxDOT permit must be submitted along with the construction documents. NOTE: 1. We will be requesting the corrected Final Plat to be submitted in digital form if available prior to filing Revised 4/14 the plat at the Courthouse. 2. If the construction area is greater than 5 acres, EPA Notice of Intent (NOi) must be submitted prior to issuance of a development permit. Page 9 of9 Polo Estates Subdivision Waiver Request Waiver to Section 12-8.3.E.3. Street Projections and Waiver to Section 12-8.3.G. Blocks. 2. Block Length Justification for Waiver: Polo Estates consists of the previously platted 34 acre Lot 1, Block 1 of the Foxworth Subdivision. This lot was platted in 2004 with no streets required to break the block length or projected to adjacent tracts. This waiver request is to allow the development of the Subdivision as shown on the plat with a street extension to the south, but not to the west or east and with a block length exceeding 1,500'. A street is extended to the largest adjacent tract which would be the only tract likely to subdivide for development. The justification for not extending a street to the west is that the adjacent tracts are already developed as single residential lots. The Wootan and Bass tracts as shown on Exhibit A were subdivided out of the larger tract but were not platted since each tract is greater than 10 acres. To the south of the Bass tract are platted lots so a street through the Wootan and Bass tracts could not be a through street unless it connected back to South Dowling Road on one of these tracts. It is not likely that a street extended to the Wootan tract would ever be extended since the house and barn locations as shown on Exhibit B occupy a large part of the tract and any future subdividing would be to add one or two homesites which can be accomplished by taking access of South Dowling Road. Also, attached is an email from Chad Wootan which he stated that he does not desire to have a street extended to his property. A street is not proposed to the unplatted tract to the east since it would have to cross a significant drainage way and the 7.5 acre tract is already developed as a fraternity house. The tract between the 7 .5 acre tract and I&GN Road is already developed and is only 2.1 acres so it is unlikely that a street would extend through that tract. The location of the drainage way is shown on Exhibit C and the existing structures on the tracts are shown on Exhibits B and C. Future subdivision of the tract could occur with access only from North Graham Road. 1. There are special circumstances or conditions affecting the land involved such that strict application of the subdivision regulations will deprive the applicant of the reasonable use of his land. Strict application of the ordinance will result in extensions of streets that may never be extended therefore requiring the Developer to construct streets that are not necessary for this development or future development. 2. The wavier is necessary for the preservation and enjoyment of substantial property right of the applicant. The property owner desires to develop the property without the additional expense and disturbance that would results from extending streets to the west and east. 3. The granting of the waiver will not be detrimental to the public health, safety, or welfare, or injurious to other property in the area, or to the City in administering subdivision regulations. The granting of the waivers for this development will not be detrimental to the public health, safety, or welfare, or injurious to other property as the development will comply with all other standards and requirements. 4. The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in accordance with the previsions of the Unified Development Ordinance. The granting of this waiver will not affect the subdivision of other land since the proposed plan provides an extension of a street and utilities to the largest adjacent tract which may develop in the future. The other adjacent and nearby tracts are already developed. Joe Schultz From: Sent: To: Subject: Joe, Chad Wootan <chad@lonestarbcs.com> Wednesday, February 25, 2015 12:59 PM 'Joe Schultz' street extension to Wootan 11 acres As per our discussion concerning the development of the Polo Estates property, adjacent to my personal residence, I have no desire to have a road extended to my property line. I have no future interest in developing my 11.S acres. I have no need to connect or have access thru said property. I think it is even against my deed restrictions to subdivide my property. It will devalue my property and my privacy by adding this extension to my boundary. Thanks Chad Wootan 1 CITY or C rn..LEGE STATION Home o/Texas A&M Univmity" PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. 0 New Project Submittal D Incomplete Project Submittal -documents needed to complete an application. Case No.: Existing Project Submittal. Case No.: (15-00900027) Project Name Polo Estates (FP-REPLA T) Contact Name ~~~~~~~~~~~~~~~ We are transmitting the following for Planning & Development Services to review and comment (check all that apply): D Comprehensive Plan Amendment 0 Rezoning Application D Conditional Use Permit 0 Preliminary Plan ~ Final Plat 0 Development Plat D Site Plan D Special District Site Plan D Special District Bu ilding I Sign 0 Landscape Plan D Non-Residential Architectural Standards 0 Irrigation Plan D Variance Request 0 Development Permit 0 Development Exaction Appeal D FEMA CLOMA/CLOMR/LOMA/LOMR 0 Grading Plan D Other -Please specify below INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. The following are included in the complete set: D Comprehensive Plan Amendment D Waterline Construction Documents D TxDOT Driveway Permit D Sewerline Construction Documents D TxDOT Utility Permit D Street Construction Documents D Drainage Letter or Report D Easement Application D Fire Flow Analysis D Other -Please specify Special Instructions: 10/10 [ Printfbrm May 26, 2015 Jessica Bullock Staff Planner City of College Station 1101 Texas Avenue College Station, TX 77840 Re: Polo Estates (FP-REPLAT) -(15-00900027) Dear Ms. Bullock: Attached are the following items for the project referenced above: • Thirteen (13) 11"xl7" copies of the revised Final Plat If you have any questions, please do not hesitate to call. Sincerely, Schultz Engineering, LLC. Joe Schultz, P .E. Manager/Civil Engineer P.O. Box 11995 • College Station, Texas 77842 schultzengineeringllc.com Office: 979.764.3900 Fax: 979.764.3910 FOR OFFIC~ USE ~~ CASE NO. \ 6 .--, DATESUBMITTED: OE2'\~~ TIME:~~ STAFF: · Cnv OF C oll.EGE STATION Home ofT=zs A&M University" ~~--~~~~~~ FINAL PLAT APPLICATION (Check one) D Minor ($700) D Amending ($700) ~Final ($932) D Vacating ($932) 0Replat ($932) Is this plat in the ET J? [8J Yes O No Is this plat Commercial O or Residential O / MINIMUM SUBMITTAL REQUIREMENTS: i~ $700-$932 Final Plat Application Fee (see above). 0 $233 Waiver Request to Subdivision Regulations Fee (if applicable). 0 $600 (minimum) Development Permit Application I Public Infrastructure Review and Inspection Fee. Fee is 1 % of acceptable Engineer's Estimate for public infrastructure, $600 minimum (if fee is > $600, the balance is j6e prior to the issuance of any plans or development permit). ~Application completed in full. This application form provided by the City of College Station must be used and /lay not be adjusted or altered. Please attach pages if additional information is provided. ~ Six (6) folded copies of plat. (A signed mylar original must be submitted after approval.) [8J Two (2) copies of the grading, drainage, and erosion control plans with supporting drainage report. ~ Two (2) copies of the Public infrastructure plans and supporting documents (if applicable). ~ _,Popy of original deed restrictions/covenants for replats (if applicable). g Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate current within n·inety (90) days. The report must include applicable information such as ownership, liens, . )itncumbrances, etc. [8f Paid tax certificates from City of College Station, Brazos County and College Station l.S.D. ~ The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not. NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be considered complete. If the mylar is submitted with the final plat application, it shall be considered a submittal for the preliminary plan project and processed and reviewed as such. Until the mylar has been confirmed by staff to be correct, the final plat application will be considered incomplete. Date of Optional Preapplication or Stormwater Management Conference NAME OF PROJECT Polo Estates ~~------------~-----------------~ ADDRESS North Graham Road SPECIFIED LOCATION OF PROPOSED PLAT: East of the intersection of North Graham Road and South Dowling Road APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): . Name Louis A Malecheck, Ill E-mail malecheck@thepaynelawgroup.com Street Address 3850 Corporate Center Drive City Bryan State Texas Zip Code _7_78_0_2 ___ _ Phone Number _9_79_._77_6_.9_B_o_o _________ _ Fax Number 979. 731.8333 Revised 4/14 Page 1 of 9 PROPERTY OWNER'S INFORMATION (All owners must be identified. Please attach an additional sheet for multiple owners): Name Get Real, LLC E-mail malecheck@thepaynelawgroup.com Street Address 3850 Corporate Center Drive City Bryan State Texas Zip Code 77802 ------ Phone Number 979. 776.9800 Fax Number 979. 731.8333 ---------------~ ARCHITECT OR ENGINEER'S INFORMATION: Name Schultz Engineering, LLC -Joe Schultz E-mail joeschultz842verizon.net Street Address 2730 Longmire Drive, Suite A City College Station State Texas Zip Code 77845 ------ Phone Number (979) 764-3900 Fax Number (979) 764-3910 ----------------- Do any deed restrictions or covenants exist for this property? O Yes (8] No Is there a temporary blanket easement on this property? If so , please provide the Volume ____ and Page No. __ _ Total No. of Lots 21 ----R-0-W Acreage 2. 762 -------Total Acreage _34_._0_69 _______ _ Existing Use _h_or._s_e_s_ta_b_le_s _________ _ Proposed Use Re_s_id_e_n_t1_·a_I ___________ _ Number of Lots By Zoning District nla / Average Acreage Of Each Residential Lot By Zoning District: 1.491 I ETJ Floodplain Acreage 0 ------------------- 1 s there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels) on the property? I Yes IX No This information is necessary to help staff identify the appropriate standards to review the application and will be used to help determine if the application qualifies for vesting to a previous ordinance. Notwithstanding any assertion made, vesting is limited to that which is provided in Chapter 245 of the Texas Local Government Code or other applicable law. Is this application a continuation of a project that has received prior City platting approval(s) and you are requesting the application be reviewed under previous ordinance as applicable? IX Yes t No If yes, provide information regarding the first approved application and any related subsequent applications (provide additional sheets if necessary): Project Name: Foxworth Subdivision City Project Number (if known): --------------- Date I Timeframe when submitted: Revised 4/14 Page 2 of 9 Re uested waiver to subdivision re ulations and reason for same if a:>plicable): -'--~~'--~~~~~~~~~~~~~ Regarding the waiver request, explain how: 1. There are special circumstances or conditions affecting the land involved such that strict application of the subdivision re ulations will de rive the applicant of the reasonable use of his land . ~~~~~~~~~~~~~~~~~ 3. The granting of the waiver will not be detrimental to the public health, safety, or welfare, or injurious to other property in the area, or to the City in administering subdivision regulations. ~~~~~~~~~~~~~~~~ 4. The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in accordance with the provisions of the Unified Development Ordinance. ~~~~~~~~~~~~~~~---, Fee in lieu of sidewalk construction is being requested because of the following condition (if applicable): 1. I An alternative pedestrian way or multi-use path has been or will be provided outside the right-of-way; 2. I The presence of unique or unusual topographic, vegetative, or other natural conditions exist so that strict adherence to the sidewalk requirements of the UDO is not physically feasible or is not in keeping with the purposes and goals of the UDO or the City's comprehensive Plan; 3. I A capital improvement project is imminent that will include construction of the required sidewalk. Imminent shall mean the project is funded or projected to commence within twelve (12) months; 4. I Existing streets constructed to rural section that are not identified on the Thoroughfare Plan with an estate I rural context; 5. r When a sidewalk is required along a street where a multi-use path is shown on the Bicycle, Pedestrian, and Greenways Master Plan; Revised 4/14 Page 3 of 9 6. r The proposed development is within an older residential subdivision meeting the criteria in Platting and Replatting within Older Residential Subdivisions Section of the UDO; or 7. r The proposed development contains frontage on a Freeway I Expressway as designated by Map 6.6. Thoroughfare Plan -Functional Classification, in the City's Comprehensive Plan. Detailed explanation of condition identified above: NOTE: A waiver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered at the same time by the Planning & Zoning Commission. Total Linear Footage of Proposed Public: 1637 Streets NIA Sidewalks NIA Sanitary Sewer Lines 1715 Water Lines 519 Channels ~Storm Sewers NIA Bike Lanes I Paths Parkland Dedication due prior to filing the Final Plat: ACREAGE: ___ No. of acres to be dedicated + $ ____ development fee ___ No. of acres in floodplain No. of acres in detention --- ---No. of acres in greenways OR FEE IN LIEU OF LAND: __ No. of SF Dwelling Units X $ = $ ------------ (date) Approved by Parks & Recreation Advisory Board ---- NOTE: DIGIT AL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING. The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are true, correct, and complete. IF THIS APPLICATION IS FILED BY ANYONE OTHER THAN THE OWNER OF THE PROPERTY, this application must be accompanied by a power of attorney statement from the owner. If there is more than one owner, all owners must sign the application or the power of attorney. If the owner is a company, the application must be accompanied by proof of authority for the company's representative to sign the application on its behalf LIEN HOLDERS identified in the title report are also considered owners and the appropriate signatures must be provided as described above. ----·--· Date Revised 4/14 Page 4 of9 CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT Owner Certification: 1. No work of any kind may start until a permit is issued. 2. The permit may be revoked if any false statements are made herein. 3. If revoked , all work must cease until permit is re-issued. 4. Development shall not be used or occupied until a Certificate of Occupancy is issued. 5. The permit will expire if no significant work is progressing within 24 months of issuance. 6. Other permits may be required to fulfill local, state, and federal requirements. Owner will obtain or show compliance with all necessary State and Federal Permits prior to construction including NOi and SWPPP. 7. If required, Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pour) and post construction. 8. Owner hereby gives consent to City representatives to make reasonable inspections required to verify compliance. 9. If, stormwater mitigation is required, including detention ponds proposed as part of this project, it shall be designed and constructed first in the construction sequence of the project. 10. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to insure that all debris from construction, erosion, and sedimentation shall not be deposited in city streets, or existing drainage facilities. All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City of College Station shall apply. 11 . The information and conclusions contained in the attached plans and supporting documents will comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Design Guidelines Technical Specifications, and Standard Details. All development has been designed in accordance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 12. Release of plans to (name or firm) is authorized for bidding purposes only. I understand that final approval and release of plans and development for construction is contingent on contractor signature on approved Development Permit. 13. I, THE OWNER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATTACHMENTS FOR THE DEVELOPMENT PERMIT APPLICATION, ARE, TO THE BEST OF MY KNOWLEDGE, TRUE , AND ACCURATE. Property Owner(s) Date Engineer Certification: 1. The project has been designed to ensure that stormwater mitigation, including detention ponds, proposed as part of the project will be constructed first in the construction sequence. 2. I will obtain or can show compliance with all necessary Local, State and Federal Permits prior to construction including NOi and SWPPP. Design will not preclude compliance with TPDES: i.e., projects over 10 acres may require a sedimentation basin. 3. The information and conclusions contained in the attached plans and supporting documents comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Design Guidelines. All development has been designed in accordance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 4. I, THE ENGINEER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATTACHMENTS FOR THE DEVELOPM T P RMIT ~~~~~TION, ARE, TO THE BEST OF MY KNOWLEDGE, TRUE, AND AC URATE. ..,.-eo1;t:. OF I:~,~ Revised 4/14 -~.-<.. ~ .......... ~-f: ~~ "" ~· eo -"' ~i\ •• "• y\Sl !;',, * e ·~-o \·1 I QfJ • O~ jt;' c .. , ~00•0••0,.·~···· . Q l\· "4 ~ Josr:pr..i ·r·=·5·~;:~·u·····!1-..:···.i;1 Date t+ ~•o~••u .. 0~ .... • \,1fl ~ /.. (.:! ~'""(} O ~ ""0110'-i>•,;.o~oooo~o•c:Y Page 5 of 9 The following CERTIFICATIONS apply to development in Special Flood Hazard Areas. Required for Site Plans, Final Plats, Construction Plans, Fill/ Grading Permits, and Clearing Only Permits:* certify, as demonstrated in the attached drainage study, that the alterations or development covered by this permit, shall not: (i) increase the Base Flood elevation; (ii) create additional areas of Special Flood Hazard Area; (iii) decrease the conveyance capacity to that part of the Special Flood Hazard Area that is not in the floodway and where the velocity of flow in the Base Flood event is greater than one foot per second . This area can also be approximated to be either areas within 100 feet of the boundary of the regulatory floodway or areas where the depth of from the BFE to natural ground is 18 inches or greater; (iv) reduce the Base Flood water storage volume to the part of the Special Flood Hazard Area that is beyond the floodway and conveyance area where the velocity of flow in the Base Flood is equal to and less than one foot per second without acceptable compensation as set forth in the City of College Station Code of Ordinances, Chapter 13 concerning encroachment into the Special Flood Hazard Area; nor (v) increase Base Flood velocities. beyond those areas exempted by ordinance in Section 5.11 .3a of Chapter 13 Code of Ordinances. Engineer Date Initial D *If a platting-status exemption to this requirement is asserted, provide written justification under separate letter in lieu of certification. Required for Site Plans, Final Plats, Construction Plans, and Fill/ Grading Permits: B. I, , certify to the following: (i) that any nonresidential or multi-family structure on or proposed to be on this site as part of this application is designed to prevent damage to the structure or its contents as a result of flooding from the 100-year storm. Engineer Date Additional certification for Floodway Encroachments: C. I, , certify that the construction, improvement, or fill covered by this permit shall not increase the base flood elevation. I will apply for a variance to the Zoning Board of Adjustments. Engineer Date Revised 4/14 Page 6 of 9 Required for all projects proposing structures in Special Flood Hazard Area (Elevation Certificate required). Residential Structures: D. I, , certify that all new construction or any substantial improvement of any residential structure shall have the lowest floor, including all utilities, ductwork and any basement, at an elevation at least one foot above the Base Flood Elevation. Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-pour) and post construction. Engineer I Surveyor Date Commercial Structures: E. I, ----------------, certify that all new construction or any substantial improvement of any commercial, industrial, or other non-residential structure are designed to have the lowest floor, including all utilities, ductwork and basements, elevated at least one foot above the Base Flood Elevation Engineer I Surveyor Date OR I, , certify that the structure with its attendant utility, ductwork, basement and sanitary facilities is designed to be flood-proofed so that the structure and utilities, ductwork, basement and sanitary facilities are designed to be watertight and impermeable to the intrusion of water in all areas below the Base Flood Elevation, and shall resist the structural loads and buoyancy effects from the hydrostatic and hydrodynamic conditions. Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pour) and post construction. Engineer I Surveyor Date Conditions or comments as part of approval: Revised 4/14 Page 7 of 9 Existing 181 FINAL PLAT MINIMUM REQUIREMENTS (ALL CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: (Requirements based on field survey and marked by monuments and markers.) 181 Drawn on 24" x 36" sheet to scale of 100' per inch. 181 Vicinity map which includes enough of surrounding area to show general location of subject property in relationship to College Station and its City Limits. No scale required but include north arrow. 181 Title Block with the following information: 181 Name and address of subdivider, recorded owner, planner, engineer and surveyor. 181 Proposed name of subdivision. (Subdivision name & street names will be approved through Brazos County 911.) 181 Date of preparation. 181 Engineer's scale in feet. 181 Total area intended to be developed. 181 North Arrow. 181 Subdivision boundary indicated by heavy lines. 181 If more than 1 sheet, an index sheet showing entire subdivision at a scale of 500 feet per inch or larger. 181 All applicable certifications based on the type of final plat. 181 Ownership and Dedication 181 Surveyor and/or Engineer 181 City Engineer (and City Planner, if a minor plat) 0 Planning and Zoning Commission (delete if minor plat) 181 Brazos County Clerk 181 Brazos County Commissioners Court Approval (ET J Plats only) 0 If submitting a replat where there are existing improvements, submit a survey of the subject property showing the improvements to ensure that no encroachments will be created. 181 If using private septic systems, add a general note on the plat that no private sewage facility may be installed on any lot in this subdivision without the issuance of a license by the Brazos County Health Unit under the provisions of the private facility regulations adopted by the Commissioner's Court of Brazos County, pursuant to the provisions of Section 21 .084 of the Texas Water Code. 181 Location of the 100-Year Floodplain and floodway, if applicable, according to the most recent available data. 181 Lot corner markers and survey monuments (by symbol) and clearly tied to basic survey data. 181 Matches the approved preliminary plan or qualifies as minor amendments (UDO Section 3.3.E.2). The location and description with accurate dimensions, bearings or deflection angles and radii , area, center angle, degree of curvature, tangent distance and length of all curves for all of the following: (Show existing items that are intersecting or contiguous with the boundary of or forming a boundary with the subdivision, as well as, those within the subdivision). Proposed 181 Streets. Continuous or end in a cul-de-sac, stubbed out streets must end into a temp turn around unless they are shorter than 100 feet. Public and private R.O.W. locations and widths. (All existing and proposed R.O.W.'s sufficient to meet Thoroughfare Plan.) Street offsets and/or intersection angles meet ordinance. Page 8 of 9 Revised 4/14 Existing D [8] [8] D Proposed D [8] [8] D Alleys. Easements. A number or letter to identify each lot or site and each block (numbered sequentially). Parkland dedication/greenbelt area/park linkages. All proposed dedications must be reviewed by the Parks and Recreation Advisory Board and documentation of their recommendation provided prior to being scheduled for P&Z Commission consideration. [8] Construction documents for all public infrastructure drawn on 24" x 36" sheets and properly sealed by a Licensed Texas Professional Engineer that include the following: [8] Street, alley and sidewalk plans, profiles and sections. One sheet must show the overall street, alley and/or sidewalk layout of the subdivision. (may be combined with other utilities). D D Sewer Design Report. Sanitary sewer plan and profile showing depth and grades. One sheet must show the overall sewer layout of the subdivision. (Utilities of sufficient size/depth to meet the utility master plan and any future growth areas.) Water Design Report and/or Fire Flow Report. Water line plan showing fire hydrants, valves, etc. with plan and profile lines showing depth and grades. One sheet must show the overall water layout of the subdivision . (Utilities of sufficient size/depth to meet the utility master plan and any future growth areas.) Storm drainage system plan with contours, street profile, inlets, storm sewer and drainage channels, with profiles and sections. Drainage and runoff areas, and runoff based on 5, 10, 25, 50 and 100 year rain intensity. Detailed drainage structure design, channel lining design & detention if used. One sheet must show the overall drainage layout of the subdivision. [8] Detailed cost estimates for all public infrastructure listed above sealed by Texas P.E. D Letter of completion for public infrastructure or guarantee I surety in accordance with UDO Section 8.6. [8] Drainage Report with a Technical Design Summary. [8] Erosion Control Plan (must be included in construction plans). [8] All off-site easements necessary for infrastructure construction must be shown on the final plat with a volume and page listed to indicate where the separate instrument easements were filed . Separate instrument easements must be provided in recordable form to the City prior to being scheduled for P&Z Commission consideration. [8] Are there impact fees associated with this development? D Yes [8] No Impact fees must be paid prior to building permit. [8] Will any construction occur in TxDOT rights-of-way? D Yes [8] No If yes, TxDOT permit must be submitted along with the construction documents. NOTE: 1. We will be requesting the corrected Final Plat to be submitted in digital form if available prior to filing Revised 4/14 the plat at the Courthouse. 2. If the construction area is greater than 5 acres, EPA Notice of Intent (NOi) must be submitted prior to issuance of a development permit. Prin(Form Page 9 of 9 yt~5' ~s , J NQLltt~ \ PLANNING RESPONSE TO STAFF REVIEW COMMENTS NO. 1 Project: Polo Estates (FP-Replat) (15-00900027) Meets and bounds do not close, please revise. A call was missing on the northwest boundary line. It has been added to the Final Plat. ~-Right-of-way on N. Graham should be 77'. Half of the deficiency should be dedicated with this plat. 3.5' of right-of-way was added to the tract. In addition, 3.5' of pue was added to the lots so that there is a total of 20' of PUE. .h. Please project a public street to the unplatted lots to the south, east, and west with a 70-foot right-of-way. As proposed the block length currently exceeds 1500 feet as the cul-de-sac does not break block length. A street was extended to the south. A waiver is being requested for block length and street extensions to the east and west. J The proposed Mallet Court and Mallet Way all count as a cul-de-sac. The cul-de-sac cannot exceed cannot exceed 750 feet in length. The alignment of the subdivision streets changed so that the cul-de-sac is less ~ than 750 feet. (hv\<...\£.,.er \o..o e 1 s /4;) .'}.'"\ \'5 t--1.Cille.\ ~ "o l~lU a ~-d~-· vE -Lots around cul-de-sacs need to meet the 75-foot lot width as measured at the street. Lots 13-17 should be revised to meet the requirement of 100-foot lot width as measured at the street. All cul-de-sac lots meet the 75' width and all other lots are 100' in width. Lots platted adjacent to straight right of way (S. Dowling, Mallet Way, and Mallet Court) shall be substantially right angles. The lots are "substantially" at right angles in our opinion. LD4 51 lot 1'3.1 1 ot" I~ .1 t ~ t 7 Parkland in the amount of $26,481 ($1261 x21) will be due upon filing of the final plat. Noted. FYI, there are 22 lots on this Final Plat. With there being 1 lot in the Foxworth Subdivision already, only 21 are being added so $1261x21 should be the ? amount due. µor v5 eel a6 re..'O'cl efr•Cl.4 f2' Be.tea~ Ca ~ P'iY'\ f'U>< <c: t;Qu:1 cvb • ./ 8. Please move the Certificate of the County Clerk to the 6tner side of sheet two with the other certifications. The certificate of the county clerk has been moved . ./ 9. Please remove the Certificate of City Planner and add Certificate of Planning and Zoning Commission. The certificate of City Planner has been removed and the certificate of planning and zoning commission has been added. /1 O. The building setback identified in note 15 are different from building setbacks on the original plat. Please confirm that this is current standards. Note 15 has been revised to match the original plat . .;1 1. All structures will need to be removed prior to the filing of the plat. Noted. Jl-2. Please note that you may be required to submit paid tax certificates if they are not current prior to the filing of your plat. Noted. L/13. Please note that any changes made to the plans that have not been requested by the City of College Station, must be explained in your next transmittal letter. .. t-Jot-e t6 ~ Noted. o.,~c.J\-o..c..c..es~ tu ~ R.fJ l Qof-l CO I t° ,.i_f' 1,.td ~(Of°S & (J.)l.1-l be-t-0 "'f · d '\--p \>I.)~ ? ~ t.Y-S :1 -ffo "'>-O<P-'"'8 IJ l_}JQ.. 0 " ~c),Jt • \..) 0~€ ~.J;.. Cf> '50 9'0- ·detd ~n«25 ~ \t \~ t-\-kc 8 lotS 14. County comments are still being worked on and will follow. Noted. ENGINEERING COMMENTS NO. 1 1. Add a note on the "Replat stating whose responsibility it is to maintain, and stating that fences, grading, and landscape cannot impede the flow of the private drainage easement. Note 17 was added to the plat. 2. Add a note on the Replat and construction documents regarding requirement for compaction of fill or engineered slab for affected lots that have greater than 2 feet of fill. Also list the lots that would require this. Note 19 was added to the plat. There isn't any grading proposed on the lots near the buildab/e area of the future homes. Therefore, we cannot tell which lots are going to require greater than 2 feet of fill. The note was left as a general statement to include any lots that require greater than 2 feet of fill. 3. Add a note on the Replat stating that the proposed lots can't be located further than 500' from a fire hydrants which is based on the lay of the hose along the street. Note 20 was added to the final plat. 4. Remove FEMA Map with ending numbers, 375-E, from the Replat note. Subdivision appears to be not located on that map. Note revised. 5. Cul-de sac's length is exceeding the allowed length in the UDO. The alignment of the subdivision streets has been revised so that the cul-de-sac is less than 750. 6. Please provide a private drainage easement for the estimated 100-year storm & the creek. Please show this on the Replat & Construction documents. A private drainage easement is shown on the plat and the construction plans. 7. Change construction note #6 regarding Wickson SUD to Wellborn SUD. Note 6 has been revised. 8. Is the Overhead electric line a BTU line that is to remain or be relocated? Does it have an easement? If it does please show it on the Replat. It is g'oing to be removed. 9. Please increase the symbol size for hydrants and gate valves on the overall plan. The symbol size was changed on the overall plan. 10. Adjust Mallet Way grade at Intersection with North Graham Road to have no more than plus or minus 2% grade. The Grade was changed. 11 . Provide horizontal curves for Mallet Way. Horizontal curves are provided for Mallet Way. -alignment has been revised 12. Entire Rock Rip Rap needs to be in a private drainage easement. See Chanel No. 1. All of the Rock Rip Rap is now in a private drainage easement. 13. Provide erosional control measurements such as silt fences, hay bales, etc. Silt fence is provided. It is shown on the Overall plan. In addition, erosion control blankets are proposed. 14. Provide an additional gate valve between Fire hydrant No 1 & 2. The gate valve spacing currently exceeds 800'. The alignment of the Waterlines changed, but the gate valve spacing is less than 800' on the new layout. 15. Provide additional easement on lot 14, or realign the waterline W-2 in such a way that there's at least 5.5' clearance between the waterline's centerline & edge of PUE. CITY OF COLLEGE STATION Home o/Texas A&M Univmity• FOR OFFICE USE ONLY CASE NO.: \ts.. d I DATE SUBMITTED: z:.xr,a 0115 TIME: eJ,@ • STAFF:~ PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. D New Project Submittal D Incomplete Project Submittal -documents needed to complete an application. Case No.: -~~~~~~~~ [8] Existing Project Submittal. Case No.: (15-00900027) Project Name Polo Estates (FP-REPLA T) Contact Name ______________ _ We are transmitti ng the following for Planning & Development Services to review and comment (check all that apply): D Comprehensive Plan Amendment D Non-Residential Architectural Standards D Rezoning Application D Irrigation Plan D Conditional Use Permit D Variance Request D Preliminary Plan D Development Permit [8] Final Plat D Development Exaction Appeal D Development Plat D FEMA CLOMA/CLOMR/LOMA/LOMR D Site Plan D Grading Plan D Special District Site Plan D Other -Please specify below D Special District Building I Sign D Landscape Plan INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. The following are included in the complete set: D Comprehensive Plan Amendment [8] Waterline Construction Documents D TxDOT Driveway Permit D Sewerline Construction Documents D TxDOT Utility Permit [8] Street Construction Documents [8] Drainage Letter or Report D Easement Application [8] Fire Flow Analysis D Other -Please specify Special Instructions: 10/10 Print Form cgg_chultz Engineer ing, LLC April 3, 2015 Jessica Bullock Staff Planner City of College Station 1101 Texas Avenue College Station, TX 77840 Re: Polo Estates (FP-REPLAT) -(15-00900027) Dear Ms. Bullock: Attached are the following items for the project referenced above: • One (1) 24" x 36" copy of the revised Final Plat • One (1) set of the revised construction documents • One (1) copy of the Engineer's Estimate • One (1) copy of the revised Drainage Report • One (1) copy of the Water Report • Revised Final Plat Application • Waiver Request • Response to Staff Comments If you have any questions, please do not hesitate to call. Sincerely, Schultz Engineering, LLC. Joe chultz, P.E. M ager/Civil Engineer P.O. Box 11995 • College Station, Texas 77842 schultzengineeringllc.com Office: 979.764.3900 Fax: 979.764.3910 ... ' . ( ·~ PLANNING RESPONSE TO STAFF REVIEW COMMENTS NO. 1 Project: Polo Estates (FP-Replat) (15-00900027) 1. Meets and bounds do not close, please revise. A call was missing on the northwest boundary line. It has been added to the Final Plat. 2. Right-of-way on N. Graham should be 77'. Half of the deficiency should be dedicated with this plat. 3.5' of right-of-way was added to the tract. In addition, 3.5' of pue was added to the lots so that there is a total of 20' of PUE. 3. Please project a public street to the unplatted lots to the south, east, and west with a 70-foot right-of-way. As proposed the block length currently exceeds 1500 feet as the cul-de-sac does not break block length. A street was extended to the south. A waiver is being requested for block length and street extensions to the east and west. 4. The proposed Mallet Court and Mallet Way all count as a cul-de-sac. The cul-de-sac cannot exceed cannot exceed 750 feet in length. The alignment of the subdivision streets changed so that the cul-de-sac is less than 750 feet. 5. Lots around cul-de-sacs need to meet the 75-foot lot width as measured at the street. Lots 13-17 should be revised to meet the requirement of 100-foot lot width as measured at the street. All cul-de-sac lots meet the 75' width and all other lots are 100' in width. 6. Lots platted adjacent to straight right of way (S. Dowling, Mallet Way, and Mallet Court) shall be substantially right angles. The lots are "substantially" at right angles in our opinion. 7. Parkland in the amount of $26,481 ($1261 x21) will be due upon filing of the final plat. Noted. FYI, there are 22 lots on this Final Plat. With there being 1 lot in the Foxworth Subdivision already, only 21 are being added so $1261x21 should be the amount due. 8. Please move the Certificate of the County Clerk to the other side of sheet two with the other certifications. The certificate of the county clerk has been moved. 9. Please remove the Certificate of City Planner and add Certificate of Planning and Zoning Commission. The certificate of City Planner has been removed and the certificate of planning and zoning commission has been added. 1 O. The building setback identified in note 15 are different from building setbacks on the original plat. Please confirm that this is current standards. Note 15 has been revised to match the original plat. 11. All structures will need to be removed prior to the filing of the plat. Noted. 12. Please note that you may be required to submit paid tax certificates if they are not current prior to the filing of your plat. Noted. 13. Please note that any changes made to the plans that have not been requested by the City of College Station, must be explained in your next transmittal letter. Noted. 14. County comments are still being worked on and will follow. Noted. ENGINEERING COMMENTS NO. 1 /-Add a note on the Replat stating whose responsibility it is to maintain, and stating that fences, grading, and landscape cannot impede the flow of the private drainage easement. Note 17 was added to the plat. ,,7. Add a note on the Replat and construction documents regarding requirement for compaction of fill or engineered slab for affected lots that have greater than 2 feet of fill. Also list the lots that would require this. Note 19 was added to the plat. There isn't any grading proposed on the lots near the buildable area of the future homes. Therefore, we cannot tell which lots are going to require greater than 2 feet of fill. The note was left as a general statement to include any lots that require greater than 2 feet of fill. /. Add a note on the Replat stating that the proposed lots can't be located further than 500' from a fire hydrants which is based on the lay of the hose along the street. Note 20 was added to the final plat. /. Remove FEMA Map with ending numbers, 375-E, from the Replat note. Subdivision appears to be not located on that map. Note revised. y Cul-de sac's length is exceeding the allowed length in the UDO. . The alignment of the subdivision streets has been revised so that the cul-de-sac is less than 750. jl/. Please provide a private drainage easement for the estimated 100-year storm & the creek. Please show this on the Replat & Construction documents. A private drainage easement is shown on the plat and the construction plans. T Change construction note #6 regarding Wickson SUD to Wellborn SUD. Note 6 has been revised. 8. Is the Overhead electric line a BTU line that is to remain or be relocated? Does it have an easement? If it does please show it on the Replat. It is going to be removed. ?. Please increase the symbol size for hydrants and gate valves on the overall plan. The symbol size was changed on the overall plan. )ef. Adjust Mallet Way grade at intersection with North Graham Road to have no more than plus or minus 2% grade. The Grade was changed. d}.;Provide horizontal curves for Mallet Way. Horizontal curves are provided for Mallet Way. -alignment has been revised yi. Entire Rock Rip Rap needs to be in a private drainage easement. See Chanel No. 1. All of the Rock Rip Rap is now in a private drainage easement. ~ovide erosional control measurements such as silt fences, hay bales, etc. P ' '. Silt fence is provided. It is shown on the Overall plan. In addition, erosion control blankets are proposed. ).K. Provide an additional gate valve between Fire hydrant No 1 & 2. The gate valve spacing currently exceeds 800'. The alignment of the Waterlines changed, but the gate valve spacing is less than 800' on the new layout. /.Provide additional easement on lot 14, or realign the waterline W-2 in such a way that there's at least 5.5' clearance between the waterline's centerline & edge of PUE. . ( The alignment of the Waterlines changed, and now the waterline has adequate spacing from the edge of the PUE. ~· Please verify and place a note on plans that water services will be left between 2 & 3 feet deep at the point of terminus by developer's contractor. Note 9 was added to the water sheets . .,1. According to the letter address to Stephen Cast, Fire hydrants need to be connected via 8" lines. What's the reason for connecting Fire hydrant No. 2 to only a 6" line? A complete water report is attached to this submittal. yf. Please provide a written correspondence with Wellborn SUD regarding the 1700' dead end line. The water line is now looped and is extended to the adjacent property so that it can be looped in the future. 1-9. Please provide a Water system report. A water report is attached to this submittal. 'pf Please change Primary Drainage Facility to Hopes Creek & Firm panel # to 48041 C0325E in the General description of the drainage report. The drainage report has been revised. A copy of the revised drainage report is included in this submittal. }"'f. Provide sealed engineer cost estimate, erosion control details. A sealed engineer cost estimate is included in this submittal. ADDRESSING f 1. Please change Mallet Way to Mallet Court. The street name should be continuous. The street alignments changed. SANITATION j 1. Sanitation is ok with this project. Noted. Fire Flow Analysis Report for Polo Estates Subwdivision Brazos County, Texas March 2015 Prepared Bv: • TBPE Firm Registration No. 12327 2730 Longmire, Suite A College Station, Texas 77845 979.764.3900 SCHULTZ ENGINEERINC. LLC. Fire Flow Analysis Report for Polo Estates Subwdivision Brazos County, Texas March 2015 Prepared Bv: . :;;;;;:::.;;,....__ Schultz Engineering, LLC TBPE Firm Registration No. 12327 2730 Longmire, Suite A College Station , Texas 77845 979.764.3900 SCHULTZ ENGINEERING. LLC. General Information Location: General Note: The Polo Estates Subdivision is a 34.069-acre residential subdivision being developed immediately at the existing Foxworth Subdivision, in Brazos County, Texas. The Final Plat shows a total of 22 lots. The water lines to serve these 22 residential lots will be an 8" & 6" along Mallet Way, Mallet Court and Chukker Lane with an 8" line that connects to the 6" line on South Dowling Road. The 6" line along Mallet Way will loop and connect to the 6" line along North Graham Road. Primary Water Supply: Land Use: Water service is provided by an existing 6" line on North Graham Road and a 6" line on South Dowling Road. This development is providing an 8" loop and a 6" line stubbed out to the adjacent tract. Single family Residential. Design Criteria/ Analysis Primary Water Supply: Existing 6" water lines along North Graham Road and South Dowling Road. Existing System Pressure Tests: Flow Hydrant -See Exhibit B Flowrate: 1,320 gpm Static Pressure: 95 psi Residual Pressure: 58 psi Exhibits: Exhibit A-Water Layout Exhibit B-Hydrant Flow Test Results Exhibit C -Pipe & Junction Analysis Summary -Domestic Flow Exhibit D -Pipe & Junction Analysis Summary -Fire Flow Domestic Use 1.5 gpm per lot for Single Family Residential 22 Lots = 33 gpm The proposed 6" & 8" waterlines are in accordance with the BCS Water Design Guidelines with the exception of 6" waterline W-1 which does not connect to an 8" line on each end. This report provides the results of the water system analysis under the fire flow and domestic demand requirements, (1033 gpm) which produced the lowest pressure in the system. Water System Summary Summary of Calculations Domestic Demand w/ Minimum Required Line Sizes Pressure Min. Velocity Max. 80.1 psi 0.24 fps 39.5 psi Fire Flow Demand FH 1 Pressure Min. Velocity Max. 6.99 fps 41.3 psi 8.25 fps 41.3 psi 8.25 fps Pressure Min. Fire Flow Demand FH 2 Fire Flow Demand FH 3 Velocity Max. Pressure Min. Velocity Max. Pressure Min. Fire Flow Demand FH 4 41.8 psi 9.24 fps Conclusion Velocity Max. As shown above the system exceeds the minimum required pressures of 35 psi for domestic flow and 20 psi for fire flow in both analyses. The maximum velocity of 9 .24 fps is less than the required maximum of 12 fps. The proposed water lines and fire hydrants provide the required fire flow. The proposed 6" & 8" waterlines meets or exceeds all of the design criteria for the City of College Station and the Wellborn Special Utility District with the exception of 6" waterline W-1 which does not connect to an 8" line on each end. They will provide adequate water pressure, flowrate and velocity for domestic demands and fire flow. - EXHIBIT A WATER LAYOUT EXHIBITB FLOW TEST REPORT FIRM #12327 WATER SYSTEM FIRE HYDRANT FLOW TEST REPORT Date: 03-13-2015 Water System Owner: Wellborn SUD Development Project: Polo Estates Flow Test Location: 500' Southeast of Country Meadows and South Dowling Nozzle Size (inch): 2.5 ---- Pitot Reading (psi): _6_2 __ _ Flowrate (gpm): 1320 Discharge Coeff (c) = 0.90 Flowrate Forula: Q=29.84cd2p112 c =discharge coeff. d = orifice size p = pitot pressure (psi) Pressure Gauge Location: Country Meadows and South Dowling Static Pressure (psi): _9_5 __ _ Residual Pressure (psi): _5_8 __ _ Compute Discharge at 20 psi Residential Pressure: QR= _1_93_3 __ _ Discharge Formula: OR= OF x (hr0·54/ht°54) Note: The Flow Test and Report were prepared in accordance with NFPA 291 Report Prepared By: _J_o_e_S_c_h_u_ltz ________ _ Ricky Flores Others Present: Glendon Adams EXHIBITC PIPE & JUNCTION ANALYSIS -DOMESTIC FLOW Pipe Number P-1 P-2 P-3 P-4 P-5 P-6 P-7 P-8 P-9 P-10 P-11 P-12 P-13 P-14 P-15 P-RES Length (ft) 1,036 987 495 1,291 1,099 1,302 4,328 1,336 380 451 231 282 7 175 810 16 Exhibit C WaterCAD Analysis Summary Pipe Analysis -Domestic Demand Size (in) Material Hazen- Williams C 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 12 PVC 150 8 PVC 150 6 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 12 PVC 150 WaterCAD Analysis Summary Junction Analysis -Domestic Demand Junction Junction Elevation Demand Pressure (gpm) (psi) J-1 274 0 91.3 J-2 254 0 100 J-3 266 0 94.8 J-4 272 0 92.2 J-5 289 0 84.8 J-6 294 2 82.6 J-7 300 0 80.1 J-8 292 0 83.5 FH-1 290 7 84.4 J-10 288 6 85.2 J-11 289 3 84.8 FH-4 289 2 84.8 FH-2 284 6 87 FH-3 275 7 90.9 Flow Velocity (gpm) (ft/s) -13 0.15 -13 0.15 20 0.23 20 0.23 -1 0.01 -13 0.15 -13 0.04 -13 0.08 10 0.11 3 0.03 -16 0.1 -19 0.12 -21 0.24 13 0.08 7 0.04 33 0.09 EXHIBITD PIPE & JUNCTION ANALYSIS -FIRE FLOW Pipe Number P-1 P-2 P-3 P-4 P-5 P-6 P-7 P-8 P-9 P-10 P-11 P-12 P-13 P-14 P-15 P-RES - Length (ft) 1,036 987 495 1,291 1,099 1,302 4,328 1,336 380 451 231 282 7 175 810 16 Exhibit D WaterCAD Analysis Summary Pipe Analysis -Fire Flow Demand (FH-1) Size (in) Material Hazen- Williams C 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 12 PVC 150 8 PVC 150 6 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 12 PVC 150 WaterCAD Analysis Summary Junction Analysis -Fire Flow Demand (FH-1) Junction Junction Elevation Demand Pressure (gpm) (psi) J-1 274 0 58 J-2 254 0 71.7 J-3 266 0 71.4 J-4 272 0 63.8 J-5 289 0 43.5 J-6 294 2 40.7 J-7 300 0 44.5 J-8 292 0 48.7 FH-1 290 1,007 39.5 J-10 288 6 43 J-11 289 3 43 FH-4 289 2 43.4 FH-2 284 6 44.8 FH-3 275 7 48.7 Flow Velocity (e:om) (ft/s) -417 4.73 -417 4.73 616 6.99 616 6.99 126 1.43 -417 4.73 -417 1.18 -417 2.66 541 6.13 -466 5.29 -485 3.1 -488 3.12 -490 5.56 13 0.08 7 0.04 1,033 2.93 Pipe Number P-1 P-2 P-3 P-4 P-5 P-6 P-7 P-8 P-9 P-10 P-11 P-12 P-13 P-14 P-15 P-RES - Length (ft) 1,036 987 495 1,291 1,099 1,302 4,328 1,336 380 451 231 282 7 175 810 16 Exhibit D WaterCAD Analysis Summary Pipe Analysis -Fire Flow Demand (FH-2) Size (in) Material Hazen- Williams C 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 12 PVC 150 8 PVC 150 6 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 12 PVC 150 WaterCAD Analysis Summary Junction Analysis -Fire Flow Demand (FH-2) Junction Demand Pressure Junction Elevation (gpm) (psi) J-1 274 0 58.4 J-2 254 0 71.9 J-3 266 0 71.4 J-4 272 0 63.7 J-5 289 0 43.l J-6 294 2 41.3 J-7 300 0 44.9 J-8 292 0 49 FH-1 290 7 42 J-10 288 6 41.7 J-11 289 3 42 FH-4 289 2 43 FH-2 284 1,006 42.3 FH-3 275 7 46.2 Flow Velocity (gpm) (ft/s) -410 4.65 -410 4.65 623 7.07 623 7.07 -103 1.17 -410 4.65 -410 1.16 -410 2.61 304 3.45 297 3.37 -722 4.61 -725 4.63 -727 8.25 1,013 6.47 7 0.04 1,033 2.93 Pipe Number P-1 P-2 P-3 P-4 P-5 P-6 P-7 P-8 P-9 P-10 P-11 P-12 P-13 P-14 P-15 P-RES Length (ft) 1,036 987 495 1,291 1,099 1,302 4,328 1,336 380 451 231 282 7 175 810 16 Exhibit D WaterCAD Analysis Summary Pipe Analysis -Fire Flow Demand (FH-3) Size (in) Material Hazen- WilliamsC 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 12 PVC 150 8 PVC 150 6 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 12 PVC 150 WaterCAD Analysis Summary Junction Analysis -Fire Flow Demand (FH-3) Junction Junction Elevation Demand Pressure (gpm) (psi) J-1 274 0 58.4 J-2 254 0 71.9 J-3 266 0 71.4 J-4 272 0 63.7 J-5 289 0 43.1 J-6 294 2 41.3 J-7 300 0 44.9 J-8 292 0 49 FH -1 290 7 42 J-10 288 6 41.7 J-11 289 3 42 FH-4 289 2 43 FH -2 284 6 42.3 FH-3 275 1,007 41.3 Flow Velocity (gpm) (ft/s) -410 4.65 -410 4.65 623 7.07 623 7.07 -103 1.17 -410 4.65 -410 1.16 -410 2.61 304 3.45 297 3.37 -722 4.61 -725 4.63 -727 8.25 1,013 6.47 1,007 6.43 1,033 2.93 Pipe Number P-1 P-2 P-3 P-4 P-5 P-6 P-7 P-8 P-9 P-10 P-11 P-12 P-13 P-14 P-15 P-RES • Length (ft) 1,036 987 495 1,291 1,099 1,302 4,328 1,336 380 451 231 282 7 175 810 16 Exhibit D WaterCAD Analysis Summary Pipe Analysis -Fire Flow Demand (FH-4) Size (in) Material Hazen- Williams C 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 6 PVC 150 12 PVC 150 8 PVC 150 6 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 6 PVC 150 8 PVC 150 8 PVC 150 12 PVC 150 WaterCAD Analysis Summary Junction Analysis -Fire Flow Demand (FH-4) Junction Junction Elevation Demand Pressure (gpm) (psi) J-1 274 0 58.6 J-2 254 0 72 J-3 266 0 71.4 J-4 272 0 63.6 J-5 289 0 42.8 J-6 294 2 41.8 J-7 300 0 45.2 J-8 292 0 49.3 FH-1 290 7 43 J-10 288 6 43.2 J-11 289 3 42.7 FH-4 289 1,002 42.6 FH-2 284 6 44.9 FH-3 275 7 48.8 Flow Velocity (gpm) (ft/s) -404 4.58 -404 4.58 629 7.14 629 7.14 -185 2.1 -404 4.58 -404 1.15 -404 2.58 217 2.46 210 2.38 191 1.22 188 1.2 -814 9.24 13 0.08 7 0.04 1,033 2.93 FOXWORTH SUBDIVISION CLOSES Scale = 1: 424 (Feet) 1 N 05° 01' 19" E 398.83 2 N 40° 59' 53" E 75.31 3 N 42° 39' 37" E 371 .56 4 N 42° 23' 40" E 398.43 5 N 48° 14' 17" E 22.91 6 N 41 ° 22' 54" E 242.48 7 N41°29'12"E128.78 9 / / / 10 11 / / / 8 N 43° 03' 12" E 37.40 9 S 47° 41' 48" E 705.74 10 S43°23'59"W100.13 11 S 4 7° 42' 11" E 526 .12 12 s 44° 47' 19" w 769.57 13 N 84° 57' 11" W 1197.77 Scale = 1: 424 (Feet) 1 N 05° 01' 19" E 398.83 2 N 40° 59' 53" E 75.31 3 N 42° 39' 37" E 371 .56 4 N 48° 14' 17" E 22.91 5 N 41° 22' 54" E 242.48 6 N41°29'12"E128.78 7 N 43° 03' 12" E 37.40 3 8 / 6 / 9 10 / / / / 12 8 S 47° 41 ' 48" E 705.74 9 s 43° 23' 59" w 100.13 10 S 47° 42' 11" E 526.12 11 s 44° 47' 19" w 769.57 12 N 84°57'11"W 1197.77 11