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HomeMy WebLinkAboutFolder• fd)~UU rn FOR OFFICE USE ON Y P&Z CASE NO.: D3--i 3 3 DATE SUBMITTED: 5~ 3D _,03 s1TE PLAN APPL1cAT10N DP-#Ds,.. f3 MINIMUM SUBMITTAL REQUIREMENTS J' La.oo Site plan application and review fee. ~ $~~~.00 Development permit fee. - -1-1-+---11~00.oo Public infrastructure inspection fee, if applicable. (This fee is payable if construction of a public waterline, sewerline, sidewalk, street or drainage facilities is involved.) ~Ten (10) folded copies of site plan. M A copy of the attached site plan checklist with all items checked off or a brief explanation as to why the are not checked off. -M-+--Parkland Dedication requirement approved by the Parks & Recreation Board, please provide proof c approval (if applicable). NAME OF PROJECT University Park Villas ADDRESS 400 Summer Ct. College Station, Texas LEGAL DESCRIPTION Block W, University Park II Subdivision APPLICANT (Primary Contact for the Project): Name Joe Gattis, P. E. E-Mail joe.abei@txcyber.com street Address 505 University Drive East, Suite 803 City College Station state Texas --------Zip Code _7_7_84_0 _____ _ Phone Number (979) 846-6914 Fax Number (979) 846-8914 PROPERTY OWNER'S INFORMATION: Name Greg Jasper E-Mail gjasper@cox-intemet.com Street Address 1601 N. Bluebonnet Cr. City College Station state _T_e_x_a_s _____ _ Zip Code _7_7_84_5 ______ _ Phone Number (979) 224-0005 Fax Number ____________ _ ARCHITECT OR ENGINEER'S INFORMATION: Name Ash & Browne Engineering, Inc. E-Mail _a_b_e_i@_tx_c_y_b_e_r._c_o_m _____ _ Street Address 505 University Drive East, Suite 803 City College Station state _T_e_x_a_s ____ _ Zip Code _77_84_0 ______ _ Phone Number (979) 846-6914 Fax Number (979) 846-8914 OTHER CONTACTS (Please specify type of contact, i.e. project manager, potential buyer, local contact, etc.) Name __________________ _ E-Mail _____________ _ Street Address ________________________________ _ City _____________ State _______ _ Zip Code ________ _ Phone Number _______ _ Fax Number ____________ _ Site Plan.DOC I 0/24/02 1of3 · CURRENT ZONING -=.R....:...-....:.4 ________________________ _ PRESENTUSEOFPROPERTY_V_ac_a_n_t_L_ot __________________________________ ___ PROPOSED USE OF PROPERTY Multi-family Residential ________ ..;_ ______________________________________ __ VARIANCE(S) REQUESTED AND REASON(S) _N_o_n_e ______________________ _ #OF PARKING SPACES REQUIRED _3;;.....;0 ____ # OF PARKING SPACES PROVIDED _3_0 __ _ MUL Tl-FAMILY RESIDENTIAL Total Acreage 0.857 ac Floodplain Acreage0.456 ac Housing Units __!Q_ 0 #of 1 Bedroom Units 10 # of 2 Bedroom Units 0 # of 3 Bedroom Units _0_# of 4 Bedroom Units FOR 2 BEDROOM UNITS ONLY 2 # Bedrooms = 132 sq. ft . 0 # Bedrooms < 132 sq . ft . PARKLAND DEDICATION # of Multi-Family Dwelling Units ___ X$457=$ __ # of acres in floodplain # of acres in detention ___ # of acres in greenways ___ date dedication approved by Parks Board COMMERCIAL Total Acreage Building Square Feet Floodplain Acreage NOTE: Parkland Dedication fee is due prior to the issuance of a Building Permit. pared this application and certifies that the facts stated herein and exhibits attached ,,._;.....,.,.......,,.~,correct. SITE PLAN CHECKLIST ~;,,.,Plan.nae 10124/07 nt or Applicant 2 of3 SUPPLEMENTAL DEVELOPMENT PERMIT INFORMATION Application is hereby made for the following development specific site/waterway alterations: ACKNOWLEDGMENTS: ~ Greg Jasper I, (,FJ , design engineer/~ hereby acknowledge or affirm that: The information and conclusions contained in the above plans and supporting documents comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and its associated Drainage Policy and Design Standards. As a condition of approval of this permit application, I agree to construct the improvements proposed in this application a rd ing to these documents and the requirements of Chapter 13 of the College Station City Code. Contractor CERTIFICATIONS: (for proposed alterations within designated flood hazard areas.) A.I, __ certify that any nonresidential structure on or proposed to be on this site as part of this application is designatE to prevent damage to the structure or its contents as a result of flooding from the 100 year storm . Engineer Date B. I, __ certify that the finished floor elevation of the lowest floor, including any basement, of any residential structure. proposed as part of this application is at or above the base flood elevation established in the latest Federal Insurance Administration Flood Hazard Study and maps, as amended. Engineer Date C. I, __ , certify that the alterations or development covered by this permit shall not diminish the flood-carrying capacit of the waterway adjoining or crossing this permitted site and that such alterations or development are consistent with requirements of the City of College Station City Code, Chapter 13 concerning encroachments of floodways and of floodway fringes. Engineer Date D. I, __ , do certify that tbe.proposed alterations do not raise the level of the 100 year flood above elevation established in the latest Federal Insurance Administration Flood Hazard Study. Engineer Date Conditions or comments as part of approval: In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city street~ 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 SITE PLAN CHECKLIST Site Plan.DOC I 0/24/02 3 of3 f W-DEVELOPMENT PERMIT PERMIT NO. 03-43 Project: UNIVERSITY PARK VILLAS CO l Ll G l STATION FOR AREAS INSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: UNIVERSITY PARK #2 DATE OF ISSUE: 7/2/03 OWNER: LANDMARK BUILDERS TYPE OF DEVELOPMENT: SPECIAL CONDITIONS: SITE ADDRESS: 400 SUMMER CT DRAINAGE BASIN: Burton Creek VALID FOR 9 MONTHS CONTRACTOR: Full Development Permit All construction must be in compliance with the approved construction plans All trees must be barricaded , as shown on plans, prior to any construction. Any trees not barricaded will not count towards landscaping points. Barricades must be 1' per caliper inch of the tree diameter. TCEQ PHASE 11 REGULATIONS IN EFFECT. ELEVATION CERTIFICATE REQUIRED FOR STRUCTURES. The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate construction site in accordance with the approved erosion control plan as well as the City of College Station Drainage Policy and Design Criteria. If it is determined the prescribed erosion control measures are ineffective to retain all sediment onsite, it is the contractors responsibility to implement measures that will meet City, State and Federal requirements. The Owner and/or Contractor shall assure that all disturbed areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetation be returned to its original condition , placement and state. The Owner and/or Contractor shall be responsible for any damage to adjacent properties , city streets or infrastructure due to heavy machinery and/or equipment as well as erosion , siltation or sedimentation resulting from the permitted work. Any trees required to be protected by ordinance or as part of the landscape plan must be completely fenced before any operations of this permit can begin . In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city streets, or existing drainage facilities. I hereby grant this permit for development of an area inside the special flood hazard area. All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer in the development permit application for the above named project and all of the codes and ordinances of the City of College Station that apply. Date ASlf lit BROWJYE ENGINEERING, INC. Engineers and Consultants P.O. Box 10838, College Station, Texas 77842 979-846-6914 877-245-4839 Fax: 979-846-8914 June 18, 2003 Spencer Thompson, E. I. T. Graduate Civil Engineer Development Services City of College Station P.O. Box 9960 College Station, Texas 77842 Re.: BFE Approximation for University Park Villas University park Subdivision, Section 2, College Station, Texas ABEi # 1000015.2 Dear Mr. Thompson: This letter summarizes the method and assumptions used for approximating the Base Flood Elevations (BFE's) for the drainage creek adjacent to the subject property (University Park Villas Development) that lies in the Special Flood Hazard Area (SFHA), Zone 'A' at the end of Summer Ct. cul-de-sac. The property is located in the shaded area Flood Zone "A" and the unshaded Flood Zone 'X', as shown on FIRM (Flood Insurance Rate Map) map, Map Number: 48041C0142 C, effective date of July 2, 1992. Hydraulic Analysis The watershed basin that contributes to the drainage creek adjacent to the subject property is approximately 90 acres. The runoff from this area flows to Burton Creek. Utilizing the SCS Hydraulic Modeling Method, Manning's Equation, and 'Flow Master - V 6.0' by Haestad Methods software, the 100 year water surface elevations for two cross section points were determined. Hydraulic Calculations/Assumptions In determining the drainage flows for the creek and the 100-Year water surface elevations, the most conservative values were used for the SCS Hydraulic Model and the Manning Equation. The Curve Number (CN) used was 95 for the soil Hydraulic Group D. Incorporating these values, a 100-Yearflow of 730.73 cfs was determined. A Manning's Coefficient of 0.15 was used for the natural stream with heavy weeds and underbrush, also a very conservative value. Using this peak flow amount and 'Flow Master-V6.0', a water surface elevation was determined for two cross sections. The 100-Year water surface elevations for Cross Sections 1 & 2 were determined to be 278.22 feet and 276.93 feet, respectively. (See Attachment #1 and SCS Drainage Calculations Sheet) Conclusion With the calculated BF E's for the subject property at 278.22' and 276. 93' and the minimum finished floor elevations for the two buildings at 286.50 feet and 286.50 feet, respectively, it is the determination found herein that the buildings that are partially placed in the SFHA Shaded Zone 'A' will not be impacted by a 100-Yearflood event. Compliance with City Standards From the information that is presented in this report, we have shown that the development of this site will meet the City's policy. WNE ENGINEERING, INC. ~~is, P.E. r ~ect Engineer SUPPORT DATA Area (acres) 90 UNIVERISTY PARK VILLAS SCS DRAINAGE CALCULATIONS Block W, University Park, Section 2 June 2003 ABEi # 1000015.2 Conditions Composite S la CN 95 0.53 0.11 Fp 0 Time of Concentration Description Length (ft) Slope (%) Overland Flow Channel Flow 736 2300 3.81 1.54 Velocity (fps) 0.50 5.00 Time (hrs.) 0.41 0.13 TOTAL: 0.54 Runoff Calculations Storm Precipitation la/P (yr) (in/24 hrs.) 5 6.20 0.02 10 7.40 0.01 25 8.80 0.01 50 9.80 0.01 100 11 .00 0.01 ABBREVIATIONS: CN -Curve Number S -Watershed Retention Factor la -Initial Abstract (inches) Fp -Pond Adjustment Factor q Qu Qp (in) (csm/in) (cfs) 5.61 500 394.47 6.80 500 478.39 8.20 500 576.45 9.20 500 646.56 10.39 500 730.73 q -Excess Rainfall (inches) Qu -Unit Peak Discharge (CSM/inch) *(Type II Rainfall Dist. Curve) Qp -Peak Discharge (CFS) *Note: Unit Peak Discharges (Qu) determined by SGS graphical method contained in Technical Release TR-55 (USDA-SCS,1986). Minimum la/P used was 0.10. University Park Villas Worksheet for Irregular Channel Project Description Worksheet Flow Element Method Solve For Input Data Slope 0.015400 ft/ft Discharge 730.73 cfs Options Irregular Channel - 2 Irregular Channel Manning's Formula Channel Depth Current Roughness Method Improved Lotter's Method Open Channel Weighting Method Improved Lotter's Method Closed Channel Weighting Methe Horton's Method Results Mannings Coefficient Water Surface Elevation Elevation Range 0.150 276.93 ft 270.80 to 284.77 314.9 ft2 121 .40 ft 120.20 ft 6.13 ft 274.63 ft 0.284781 ft/ft 2.32 ft/s 0.08 ft 277.01 ft Flow Area Wetted Perimeter Top Width Actual Depth Critical Elevation Critical Slope Velocity Velocity Head Specific Energy Froude Number Flow Type 0.25 Subcritical Roughness Segments Start Station 0+00 End Station 2+86 Natural Channel Points Station Elevation (ft) (ft) 0+00 280.01 0+20 279.49 0+40 278.96 0+60 278.43 0+80 277.42 1+00 276.39 1+20 275.42 1+40 274.57 1+60 273.69 1+80 271.99 1+91 270.80 2+00 274.08 2+20 279.93 c:\haestad\fmw\1 CXXX>15-2. fm2 Mannings Coefficient 0.150 06f13'Q3 01 :59:39 PM © Haestad Methods, Inc. Ash & Brow ne Engineering Inc 37 Brookside Road Waterbury, CT 06700 USA (203) 755-1666 Project Engineer: ABEi FlowMaster v6.0 (614b] Page 1of2 Natural Channel Points Station (ft) 2+40 2+60 2+80 2+86 Elevation (ft) 282.11 283.44 284.49 284.77 University Park Villas Worksheet for Irregular Channel c:\haestad\fmw\1CXlOJ15-2.fm2 Ash & Browne Engineering Inc 06113.U3 01 :59:39 PM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06700 USA (203) 756-1666 Project Engineer: ABEi FlowMaster v6.0 [614b] Page 2 of2 ,• University Park Villas Cross Section for Irregular Channel Project Description Worksheet Flow Element Method Solve For Section Data Irregular Channel - 2 Irregular Channel Manning's Formula Channel Depth Mannings Coefficient 0.150 Slope O.Q15400 ft/ft Water Surface Elevation 276.93 ft Elevation Range 270.80 to 284.77 Discharge 730. 73 cfs 286.00 284.00 282.00 276.00 274.00 272.00 270.00 0+00 0+50 1+00 1+50 2+00 c:\haestad\fmw\1CXXXl15-2.fm2 Ash & Browne Engineering Inc 2+50 06113.Q3 01 :519:54 PM Q Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06700 USA (203) 756-1666 3+00 V:10.0G H:1 NTS Project Engineer: ABEi FlowMaster v6.0 [614b] Page 1 of 1 (..Jl 0\ C> 0 ():) 0 Unit peak discharge ,_. 0 C> I I N C> C> ( qu), csm/in w ..p,. 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