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DRAINAGE COMPUTATIONS For A Proposed Valley Brook Apartments Lot 10, Block 71 -Fraternity Row College Station, Brazos County, Texas Prepared for Mr. Duane Faltysek Triple J Properties, Inc. 1501 FM 2818 College Station, Texas 77842 Prepared by: Garrett Engineering 4444 Carter Creek Parkway -Suite 108 Bryan, Texas 77802 Telephone: (409) 846-2688 *May, 2000 * Garrett Englneerng -4444 Corter Creel< Parkway Suite 108 -Bryon. Texas 77802 -Telephone: (409) 846-2668 -Fox: (4'.>9) 846<~4 -Poge 1 Determine Total Pre-Development Peak Storm Water Discharge Rates Tributary Area ("A"): 1.72 Acres Pervious Area: 1.72 Acres Impervious Area: 0.00 Acres Run-Off Coefficient ("Cwt"): 0.30 Time Of Concentration ("T/c"): Woodlands: Low Elevation: High Elevation: Distance (Feet): Slope(% Grade): Velocity ("Vw"): Time: Pastures: Low Elevation: High Elevation: Distance (Feet): Slope (%Grade): Velocity ("Vp"): Time : Pavements: Low Elevation: High Elevation: Distance (Feet): Slope (%Grade): Velocity ("Vpave"): Time : Total Travel Time: Hourly Intensity Rates ("I"): 2-Year: 6.33 5-Year: 7.69 10-Year: 8.63 25-Year: 9.86 50-Year: 11 .15 100-Yea r: 11.64 Peak Discharge Rate ("Q"): 2-Year: 3.26 5-Year: 3.97 10-Yea r: 4.46 25-Yea r: 5.09 50-Yea r: 5.75 100-Yea r: 6.01 C= 0.30 C= 0.90 0.00 0.00 0.00 0.00 0.00 Feet I Second 0.00 Minutes 0.00 0.00 0.00 0.00 0.00 Feet I Second 0.00 Minutes 0.00 0.00 0.00 0.00 0.00 Feet I Second 0.00 Minutes 10.00 Minutes Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second G01Tetl Engneerlng • 444<1 Carter Creek Parkway Suite 108 -Bryoo. Texas 77802 -Telephone: (409) 840-2688 -Fax: (409) 841>-3'.!94 • Page 2 Determine Post-development Peak Storm Water Discharge (No Detention) Tributary Area ("A"): 1.72 Acres Pervious Area : 0.25 Acres Impervious Area : 1.47 Acres Run-Off Coefficient ("Cwt"): 0.81 Time Of Concentration ("T/c"): 10 Minutes Hourly Intensity Rates ("I"): 2-Year: 6.33 5-Year: 7.69 10-Year: 8.63 25-Year: 9.86 50-Year: 11.15 100-Year: 11 .64 C= 0.30 c = 0.90 Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Peak Discharge Rate ("O"): 2-Year: 8.84 Cubic Feet I Second 5-Year: 10.75 Cubic Feet I Second 10-Year: 12.07 Cubic Feet I Second 25-Year: 13.79 Cubic Feet I Second 50-Year: 15.58 Cubic Feet I Second 100-Year: 16.27 Cubic Feet I Second Compari son Of Predevelopment And Post-development Peak Discharge Rates Predevelopment Post-Development Increase 2-Year: 3.26 Ft3/sec 8.84 Ft3/sec 5.58 Ft3/sec 5-Year: 3.97 Ft3/sec 10.75 Ft3/sec 6. 79 Ft3/sec 10-Year: 4.46 Ft3/sec 12.07 Ft3/sec 7.62 Ft3/sec 25-Year: 5.09 Ft3/sec 13.79 Ft3/sec 8. 70 Ft3/sec 50-Year: 5.75 Ft3/sec 15.58 Ft3/sec 9.83 Ft3/sec 100-Year: 6.01 Ft3/sec 16.27 Ft3/sec 10.27 Ft3/sec Preliminary Determination Of Detention Pond Volume 2-Year: 5.58 Ft3/sec x (30 Min. x 60 Sec. I 2 ) = 5,022 Cubic 5-Year: 6. 79 Ft3/sec x (30 Min. x 60 Sec. I 2 ) = 6,1 07 Cubic 10-Year: 7.62 Ft3/sec x (30 Min. x 60 Sec. I 2 ) = 6,854 Cubic 25-Year: 8. 70 Ft3/sec x (30 Min. x 60 Sec. I 2 ) = 7,828 Cubic 50-Year: 9.83 Ft3/sec x (30 Min. x 60 Sec. I 2 ) = 8,849 Cubic 100-Year: 10.27 Ft3/sec x (30 Min. x 60 Sec. I 2 ) = 9,239 Cubic Feet Feet Feet Feet Feet Feet Time Base {Ib.)t eng:ul,Q MI~rt.AOO ;(;iaJ.~ £:)! 1GQOCetlttatieJ:lr~1~:~>W.Mioklt~> W>-m4 . Pog• a Determine Post-Development "Free-Flow" Peak Storm Water Discharge Tributary Area ("A"): 0.63 Acres Pervious Area: 0.59 Acres Impervious Area : 0.04 Acres Run-Off Coefficient ("Cwt"): 0.34 C= 0.30 C= 0.90 Time Of Concentration ("T/c"): 1 O Minutes (Min.) Hourly Intensity Rates ("I "): 2-Year: 6.33 Inches I Hour 5-Year: 7.69 Inches I Hour 10-Year: 8.63 Inches I Hour 25-Year: 9.86 Inches I Hour 50-Year: 11 .15 Inches I Hour 100-Year: 11.64 Inches I Hour Peak Discharge Rate ("O "): 2-Year: 1.35 Cubic Feet I Second 5-Year: 1.64 Cubic Feet I Second 10-Year: 1.84 Cubic Feet I Second 25-Year: 2.10 Cubic Feet I Second 50-Year: 2.37 Cubic Feet I Second 100-Year: 2.48 Cubic Feet I Second Gorrell Englneerng • 4444 Corter Creel< Pcxkwoy SUie 106 -Bryoo. Texas 77802-Telephone: (409) ~2686 -Fox: (4)9) ~D94 • Page 4 Determine Post-Development Flow Into Detention Pond Tributary Area ("A"): 1.09 Acres Pervious Area: 0.49 Acres Impervious Area : 0.60 Acres Run-Off Coefficient ("Cwt"): 0.63 Time Of Concentration ("T/c"): 10 Minutes Hourly Intensity Rates ("I"): 2-Year: 6.33 S-Year: 7.69 10-Year: 8.63 2S-Year: 9.86 SO-Year: 11.1 S 100-Year: 11.64 Peak Discharge Rate ("O"): 2-Year: 4.3S S-Year: S.28 10-Year: S.93 2S-Year: 6.77 SO-Year: 7.66 100-Year: 8.00 C= 0.30 C= 0.90 Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Gooett Engineering· 4444 Corter Creek Parkway SUie 108 -B<yoo. Texas 771JlJ2-Telephone: (409) 841>-2688 -Fox: (409) 841>-m4 -Page 5 Time 2-Year (Minutes) Storm 0 0.00 1 0.33 2 0.65 3 0.98 4 1.31 5 1.63 6 1.96 7 2.29 8 2.61 9 2.94 10 3.26 11 3.10 12 2.94 13 2.77 14 2.61 15 2.45 16 2.29 17 2.12 18 1.96 19 1.80 20 1.63 21 1.47 22 1.31 23 1.14 24 0.98 25 0.82 26 0.65 27 0.49 28 0.33 29 0.16 30 0.00 31 0.00 32 0.00 33 0.00 34 0.00 35 0.00 36 0.00 37 0.00 38 0.00 39 0.00 40 0.00 41 0.00 42 0.00 43 0.00 44 0.00 45 0.00 Pre-Development Inflow Hydrograph Ordinates (Cubic Feet per Second) 5-Year 10-Year 25-Year 50-Year 100-Year Storm Storm Storm Storm Storm 0.00 0.00 0.00 0.00 0.00 0.40 0.45 0.51 0.58 0.60 0.79 0.89 1.02 1.15 1.20 1.19 1.34 1.53 1.73 1.80 1.59 1.78 2.04 2.30 2.40 1.98 2.23 2.54 2.88 3.00 2.38 2.67 3.05 3.45 3.60 2. 78 3.12 3.56 4.03 4.20 3.18 3.56 4.07 4.60 4.80 3.57 4.01 4.58 5.18 5.41 3.97 4.46 5.09 5.75 6.01 3. 77 4.23 4.83 5.46 5. 71 3.57 4.01 4.58 5.18 5.41 3.37 3. 79 4.33 4.89 5.10 3.18 3.56 4.07 4.60 4.80 2.98 3.34 3.82 4.31 4.50 2. 78 3.12 3.56 4.03 4.20 2.58 2.90 3.31 3.74 3.90 2.38 2.67 3.05 3.45 3.60 2.18 2.45 2.80 3.16 3.30 1.98 2.23 2.54 2.88 3.00 1.79 2.00 2.29 2.59 2.70 1.59 1.78 2.04 2.30 2.40 1.39 1.56 1. 78 2.01 2.10 1.19 1.34 1.53 1.73 1.80 0.99 1.11 1.27 1.44 1.50 0. 79 0.89 1.02 1.15 1.20 0.60 0.67 0.76 0.86 0.90 0.40 0.45 0.51 0.58 0.60 0.20 0.22 0.25 0.29 0.30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Garrett Engheering-4444 Corter Creek Por1<woy Suite 106-Bryan. Texas 77802-Telephone: (409) 846-2688 -Fox: (4:>9) 846-m4 · Page 6 " s .. " en CJl CJl CJl CJl CJl CJl CJl CJl CJl CJl .i::. .i::. .i::. .i::. ~ 0 co 00 --.J en CJl .i::. w I\) 0 co 00 --.J en ,. * §-"? ~ p p 0 0 p p p p 0 0 p 0 p p p () 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .. i ,, 0 ;< { p p p ~ p 0 0 0 p p p p p p p 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ j p p 0 0 0 p p p p p p p p p p -; § 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ill ':' -; .. ~ 0 0 p 0 p p p 0 0 0 0 0 0 0 0 g ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ "' "' 8: p 0 p p 0 0 0 0 0 0 0 0 p 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ ~ 0 p 0 0 p p p p p p p p p p p 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ,, 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 "' ~ Time 2-Year (Minutes) Storm 0 0.00 0.88 2 1.77 3 2.65 4 3.54 5 4.42 6 5.31 7 6.19 8 7.08 9 7.96 10 8.84 11 8.40 12 7.96 13 7.52 14 7.08 15 6.63 16 6.19 17 5.75 18 5.31 19 4.86 20 4.42 21 3.98 22 3.54 23 3.10 24 2.65 25 2.21 26 1.77 27 1.33 28 0.88 29 0.44 30 0.00 31 0.00 32 0.00 33 0.00 34 0.00 35 0.00 36 0.00 37 0.00 38 0.00 39 0.00 40 0.00 41 0.00 42 0.00 43 0.00 44 0.00 Post-Development Inflow Hydrograph Ordinates (Cubic Feet per Second) 5-Year Storm 0.00 1.08 2.15 3.23 4.30 5.38 6.45 7.53 8.60 9.68 10.75 10.22 9.68 9.14 8.60 8.07 7.53 6.99 6.45 5.91 5.38 4.84 4.30 3.76 3.23 2.69 2.15 1.61 1.08 0.54 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10-Year 25-Year Storm Storm 0.00 0.00 1.21 1.38 2.41 2.76 3.62 4.14 4.83 5.51 6.04 6.89 7.24 8.27 8.45 9.65 9.66 11.03 10.86 12.41 12.07 13.79 11.47 13.10 10.86 12.41 10.26 11.72 9.66 11.03 9.05 10.34 8.45 9.65 7.85 8.96 7.24 8.27 6.64 7.58 6.04 6.89 5.43 6.20 4.83 5.51 4.22 4.83 3.62 4.14 3.02 3.45 2.41 2.76 1.81 2.07 1.21 1.38 0.60 0.69 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 50-Year 1 00-Year Storm Storm 0.00 0.00 1.56 1.63 3.12 3.25 4.68 4.88 6.23 6.51 7.79 8.14 9.35 9.76 10.91 11.39 12.47 13.02 14.03 14.64 15.58 16.27 14.81 15.46 14.03 14.64 13.25 13.83 12.47 13.02 11.69 12.20 10.91 11.39 10.13 10.58 9.35 9.76 8.57 8.95 7.79 8.14 7.01 7.32 6.23 6.51 5.45 5.70 4.68 4.88 3.90 4.07 3.12 3.25 2.34 2.44 1.56 1.63 0.78 0.81 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Gmet4iii;1neerlng -4Mil;,QQ Creek Pork"°-i G..Gle 106-B<ymO..OOnao2-TelepM.Qm) 846-26ea0 i0Q<IJ9) 1146-~. Oflrge 8 0 g ~ " (j) 01 01 01 01 01 01 01 01 01 01 ~ ~ ~ ~ :E 0 co co ---J (j) 01 ~ w t\) _.. 0 co co ---J (j) ,. i J ~ p p p p p p p p p p p p p p p g " 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 () ~ i ~ ~ p 0 0 0 p 0 0 p p p 0 p p p p ~ ~ 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 § "' < ~ p p p 0 p p 0 p p p p p p p p ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 § ~ ~ -g. p 0 0 0 0 p 0 p p 0 0 p p 0 p g ~ 0 0 6 6 6 0 0 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ ~ 0 0 p p p 0 0 0 0 0 0 0 0 0 p g 6 6 0 0 0 0 6 0 6 6 0 6 0 6 6 ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ ~ p p p p p p 0 p p p p p p p p .. 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 "O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 "' ~ '° Post-Development "Free-Flow" Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.13 0.16 0.18 0.21 0.24 0.25 2 0.27 0.33 0.37 0.42 0.47 0.50 3 0.40 0.49 0.55 0.63 0.71 0.74 4 0.54 0.66 0.74 0.84 0.95 0.99 5 0.67 0.82 0.92 1.05 1.19 1.24 6 0.81 0.98 1.10 1.26 1.42 1.49 7 0.94 1.15 1.29 1.47 1.66 1.74 8 1.08 1.31 1.47 1.68 1.90 1.98 9 1.21 1.47 1.66 1.89 2.14 2.23 10 1.35 1.64 1.84 2.10 2.37 2.48 11 1.28 1.56 1.75 2.00 2.26 2.36 12 1.21 1.47 1.66 1.89 2.14 2.23 13 1.15 1.39 1.56 1.79 2.02 2.11 14 1.08 1.31 1.47 1.68 1.90 1.98 15 1.01 1.23 1.38 1.58 1.78 1.86 16 0.94 1.15 1.29 1.47 1.66 1.74 17 0.88 1.07 1.20 1.37 1.54 1.61 18 0.81 0.98 1.10 1.26 1.42 1.49 19 0.74 0.90 1.01 1.16 1.31 1.36 20 0.67 0.82 0.92 1.05 1.19 1.24 21 0.61 0.74 0.83 0.95 1.07 1.12 22 0.54 0.66 0.74 0.84 0.95 0.99 23 0.47 0.57 0.64 0.74 0.83 0.87 24 0.40 0.49 0.55 0.63 0.71 0.74 25 0.34 0.41 0.46 0.53 0.59 0.62 26 0.27 0.33 0.37 0.42 0.47 0.50 27 0.20 0.25 0.28 0.32 0.36 0.37 28 0.13 0.16 0.18 0.21 0.24 0.25 29 0.07 0.08 0.09 0.11 0.12 0.12 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 Gooett4~1neer1n9 · JcOOcreek POO<wQ. QO, 106 · Bryan. Q..0.07602 · TelepiQAO~) ~2666 MQ4J9) ~309.0 .QQge 10 46 0.00 0.00 0.00 0.00 0.00 0.00 47 0.00 0.00 0.00 0.00 0.00 0.00 48 0.00 0.00 0.00 0.00 0.00 0.00 49 0.00 0.00 0.00 0.00 0.00 0.00 50 0.00 0.00 0.00 0.00 0.00 0.00 51 0.00 0.00 0.00 0.00 0.00 0.00 52 0.00 0.00 0.00 0.00 0.00 0.00 53 0.00 0.00 0.00 0.00 0.00 0.00 54 0.00 0.00 0.00 0.00 0.00 0.00 55 0.00 0.00 0.00 0.00 0.00 0.00 56 0.00 0.00 0.00 0.00 0.00 0.00 57 0.00 0.00 0.00 0.00 0.00 0.00 58 0.00 0.00 0.00 0.00 0.00 0.00 59 0.00 0.00 0.00 0.00 0.00 0.00 60 0.00 0.00 0.00 0.00 0.00 0.00 Gooett Englnee<lng -4444 Corte< Creek Pollcway Suite 108-Bryon. Texas 77IJIJ2 -Telephone' (409) -.2688 -Fo" (4'.)9) -.3094 -Page 11 Post-Development Flow Routed Through Detention Pond Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.43 0.53 0.59 0.68 0.77 0.80 2 0.87 1.06 1.19 1.35 1.53 1.60 3 1.30 1.59 1.78 2.03 2.30 2.40 4 1.74 2.11 2.37 2.71 3.06 3.20 5 2.17 2.64 2.97 3.39 3.83 4.00 6 2.61 3.17 3.56 4.06 4.60 4.80 7 3.04 3.70 4.15 4.74 5.36 5.60 8 3.48 4.23 4.75 5.42 6.13 6.40 9 3.91 4.76 5.34 6.10 6.89 7.20 10 4.35 5.28 5.93 6.77 7.66 8.00 11 4.13 5.02 5.64 6.44 7.28 7.60 12 3.91 4.76 5.34 6.10 6.89 7.20 13 3.69 4.49 5.04 5.76 6.51 6.80 14 3.48 4.23 4.75 5.42 6.13 6.40 15 3.26 3.96 4.45 5.08 5.74 6.00 16 3.04 3.70 4.15 4.74 5.36 5.60 17 2.83 3.44 3.86 4.40 4.98 5.20 18 2.61 3.17 3.56 4.06 4.60 4.80 19 2.39 2.91 3.26 3.73 4.21 4.40 20 2.17 2.64 2.97 3.39 3.83 4.00 21 1.96 2.38 2.67 3.05 3.45 3.60 22 1.74 2.11 2.37 2.71 3.06 3.20 23 1.52 1.85 2.08 2.37 2.68 2.80 24 1.30 1.59 1.78 2.03 2.30 2.40 25 1.09 1.32 1.48 1.69 1.91 2.00 26 0.87 1.06 1.19 1.35 1.53 1.60 27 0.65 0.79 0.89 1.02 1.15 1.20 28 0.43 0.53 0.59 0.68 0.77 0.80 29 0.22 0.26 0.30 0.34 0.38 0.40 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 Gooett Engi"leering-4444 Corter Creek Pori<woy Sutte 108-Bryon. Texas 77802-Telephone: (409) ~2688 -Fox: (4'.)9) ~3094 -Pnge 12 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 46 0.00 0.00 0.00 0.00 0.00 0.00 47 0.00 0.00 0.00 0.00 0.00 0.00 48 0.00 0.00 0.00 0.00 0.00 0.00 49 0.00 0.00 0.00 0.00 0.00 0.00 50 0.00 0.00 0.00 0.00 0.00 0.00 51 0.00 0.00 0.00 0.00 0.00 0.00 52 0.00 0.00 0.00 0.00 0.00 0.00 53 0.00 0.00 0.00 0.00 0.00 0.00 54 0.00 0.00 0.00 0.00 0.00 0.00 55 0.00 0.00 0.00 0.00 0.00 0.00 56 0.00 0.00 0.00 0.00 0.00 0.00 57 0.00 0.00 0.00 0.00 0.00 0.00 58 0.00 0.00 0.00 0.00 0.00 0.00 59 0.00 0.00 0.00 0.00 0.00 0.00 60 0.00 0.00 0.00 0.00 0.00 0.00 Garre" Englnee<ng-4444 Cort8f Creek POl1<way Wte 106· Bryon, Texas 77602-Telephone: (409) ~2666 -Fox: (409) 64b-3094 -Page 13 ... G> 0.. -G> G> LL ... G> 0.. -G> G> LL 0 ........ ·-"O .!l c: :J 0 (j 0 ....., G> G> (/) El 0 .i::. 0 II) a 9.00 8.00 7.00 6.00 Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 2-Year Storm Event 1.00 -*"-4-~~--+~~~~+--""--~--+~~~~+-~~~--+~~~----i 0.00 .,:..---""'""----+----..;;.tt.----+----_.-----t 0 12.00 10.00 8.00 6.00 4.00 2.00 0.00 0 10 20 30 40 50 Time (Minutes) Pre-Development Hydrograph ---Total Post-Development Hydrograph Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 5-Year Storm Event 10 20 30 40 50 Time (Minutes) 60 60 ---Pre-Developm ent Hydrograph ---Post-Development Outflow Hydrograph Without Detention Gooelt Englne8<1ng-4444 Co~e< Creek Parkway SUie 106-Bryon. Texas 77602-Telephone: (409) ~2666 -Fax: (4J9) ~3094 -Page 14 14.00 ... 12.00 Q) a.. -Q) 10.00 Q) ..... 0 ...... ·-"O 8.00 .0 c :J 0 (j 0 6.00 ...., Q) G> en O> ... 4.00 0 ..c 0 VI 2.00 i5 0.00 0 Total Pre-Development Vs. Total Post-Development (N o Detention) Peak Discharge Rates 10-Year Storm Event 10 20 30 40 50 Time (Minutes) 60 ---Pre-Development Hydrograph ---Post-Development Outflow Hydrograph Without Detention 14.00 ... 12.00 Q) a.. -Q) 10.00 Q) ..... 0 ...... ·-"O 8.00 .0 c :J 0 u 0 6.00 ...., Q) Q) t/) O> ... 0 4.00 ..c 0 VI 2.00 i5 0.00 0 Total Pre-Development Vs. Total Post-Development (N o Detention) Peak Discharge Rates 25-Year Storm Event 10 20 30 40 50 Time (Minutes) 60 ---Pre-Development Hydrograph ---Post-Development Outflow Hydrograph Without Detention Gooett Engneerlng · 4444 Cort&r Creek PO<kway SUie 108· Bryon. Texas 77&J2 ·Telephone: (409) 846-2688 ·Fox: (<09) 846-3094 • Page 15 16.00 ... 14.00 CD ll.. -12.00 CD CD u... 0,.... 10.00 ·-"'O ..0 c :::J 0 8.00 0 0 .._, CD CD V> 6.00 0) ... 0 4.00 .J::. 0 Ill i5 2.00 0.00 0 Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 50-Year Storm Event 10 20 30 40 50 Time (Minutes) 60 ---Pre-Development Hydrograph ---Post-Development Outflow Hydrogroph Without Detention ... CD ll.. -CD CD u... 0 ,.... ·-"'O ..0 c :::J 0 0 0 .._, CD CD V> El 0 .J::. 0 Ill i5 18.00 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00 Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 100-Year Storm Event ) '\. I '\. I '\. I '\ I I\. I / ~ '\. // ............. ~. '\. v ~ 0 10 20 30 40 50 Time (Minutes) 60 Pre-Development Hydrogroph ---Post-Development Outflow Hydrogroph Without Detention Gmett EngineOfing ·MM Corter Creek Por1<woy Suite 108 • B<yon, Texas 77802 ·Telephone: (409) 841r2688 ·Fox: (<ll9) ~m4 · Pogo 16 Detention Pond De th Vs. Volume Elevation Depth Volume (Feet) (Ft3) 296.73 0.00 0 297.00 0.27 97 297.50 0.77 802 298.00 1.27 1,904 299.00 2.27 4,504 299.10 2.37 4,808 Detention Pond Depth Vs. Volume 2.50 2.00 l.50 ........ -Q) Q) LI.. ........ .t:. -a. Q) 0 l.00 0.50 0.00 0 l,000 2,000 3,000 4,000 5,000 Detention Pond Volume (Cubic Feet) Gooott Engneorlng • 4444 Corter Creek Parkway Suite 108 -ll<yon. Texas 77802-Tolophone: (409) ~2688 -Fox: (4l9) ~3094 -Page 17 Rating Curve For Outlet Control Structure Pipe: 10 (Diameter In Inches) De th Vs. Volume 0.83 (Diameter In Feet) Elevation Depth Discharge (Feet) Ft3/Sec 296.73 0.00 0.00 297.00 0.27 0.17 297.50 0.77 1.17 298.00 1.27 2.31 299.00 2.27 3.58 299.10 2.37 3.68 Rating Curve For Outlet Control Structure Depth Vs. Volume 2.50 2.00 1.50 ....... -Q) Q) LL. ....... ..c -0.. Q) a l.00 0.50 0.00 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 Discharge (Cubic Feet Per Second) Gooelt Engineering · 4444 Corter Creek Parkway Suite 108 • B<yon, Texas 77802 ·Telephone: (409) 840-2688 ·Fox: (4:19) 846-3094 • Page 18 !Storage Indication Curve 4.00 3.50 3.00 ....... "O c 0 0 Q) 2.50 (/) -Q) Q. -Q) Q) LL.. 2.00 0 :0 :J u "" Q) El 1.50 0 .t:. 0 "' 0 1.00 0.50 0.00 Depth Storage Discharge 2s/t 2s/t+O (Feet) (Ft3) (Ft3/Sec) (Ft3/Sec) (Ft3/Sec) 0.00 0 0.00 0.00 0.00 0.27 97 0.17 3.23 3.40 0.77 802 1.17 26.73 27.90 1.27 1,904 2.31 63.47 65.78 2.27 4,504 3.58 150.13 153.71 2.37 4,808 3.68 160.27 163.95 Storage Indication Curve / ,,, / ,, ~ / v ) I I I J I 0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 2s/t+O (Cubic Feet Per Second) Gmett Englneerng • 4444 Corter Creek Parkway SUie 108· Bryon. Texas 77802 ·Telephone: (409) 840-2688 • Fox: (409) 841>-3094 • Page 19 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.43 0.87 1.30 1.74 2.17 2.61 3.04 3.48 3.91 4.35 4.13 3.91 3.69 3.48 3.26 3.04 2.83 2.61 2.39 2.17 1.96 1.74 1.52 1.30 1.09 0.87 0.65 0.43 0.22 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.43 1.30 2.17 3.04 3.91 4.78 5.65 6.52 7.39 8.26 8.48 8.04 7.61 7.17 6.74 6.30 5.87 5.43 5.00 4.56 4.13 3.69 3.26 2.83 2.39 1.96 1.52 1.09 0.65 0.22 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow I Outflow Simulation 2-Year Storm Event 2s/t-0 0.00 0.39 1.53 3.33 5.79 8.85 12.46 16.57 21.14 26.15 31.68 37.08 41.74 45.71 49.04 51.76 53.91 55.52 56.62 57.25 57.43 57.19 56.56 55.56 54.21 52.53 50.55 48.28 45.73 42.93 39.89 36.83 33.95 31.25 28.70 26.32 24.11 22.08 20.21 18.50 16.93 15.48 14.16 12.94 11.82 10.79 2s/t+O Outflow 0.00 0.43 1.70 3.70 6.38 9.71 13.63 18.11 23.09 28.53 34.41 40.15 45.12 49.35 52.89 55.78 58.06 59.77 60.95 61.62 61.81 61.56 60.89 59.82 58.39 56.60 54.49 52.07 49.36 46.38 43.15 39.89 36.83 33.95 31.25 28.70 26.32 24.11 22.08 20.21 18.50 16.93 15.48 14.16 12.94 11.82 (Ft3/Sec) 0.00 0.02 0.08 0.18 0.29 0.43 0.59 0.77 0.97 1.19 1.37 1.54 1.69 1.82 1.92 2.01 2.08 2.13 2.16 2.18 2.19 2.18 2.16 2.13 2.09 2.03 1.97 1.90 1.82 1.73 1.63 1.53 1.44 1.35 1.27 1.19 1.11 1.02 0.93 0.86 0.79 0.72 0.66 0.61 0.56 0.51 Depth Elevation (Feet) 0.00 0.03 0.13 0.28 0.33 0.40 0.48 0.57 0.67 0.78 0.86 0.93 1.00 1.05 1.10 1.14 1.17 1.19 1.21 1.22 1.22 1.21 1.21 1.19 1.17 1.15 1.12 1.09 1.05 1.01 0.97 0.93 0.89 0.85 0.81 0.78 0.74 0.69 0.65 0.61 0.58 0.55 0.52 0.49 0.46 0.44 296.73 296.76 296.86 297.01 297.06 297.13 297.21 297.30 297.40 297.51 297.59 297.66 297.73 297.78 297.83 297.87 297.90 297.92 297.94 297.95 297.95 297.94 297.94 297.92 297.90 297.88 297.85 297.82 297.78 297.74 297.70 297.66 297.62 297.58 297.54 297.51 297.47 297.42 297.38 297.34 297.31 297.28 297.25 297.22 297.19 297.17 Gooott Engineering· 4444 Corter Crook Parkway Suite 108-ll<)'on. Texas 77802 ·Telephone: (409) 841>-2688 -F<lx: (409) 846-3094 • Pogo 20 46 0.00 0.00 9.85 10.79 0.47 0.42 297.15 47 0.00 0.00 8.98 9.85 0.43 0.40 297.13 48 0.00 0.00 8.19 8.98 0.40 0.38 297.11 49 0.00 0.00 7.46 8.19 0.37 0.37 297.10 50 0.00 0.00 6.79 7.46 0.34 0.35 297.08 51 0.00 0.00 6.17 6.79 0.31 0.34 297.07 52 0.00 0.00 5.60 6.17 0.28 0.33 297.06 53 0.00 0.00 5.09 5.60 0.26 0.31 297.04 54 0.00 0.00 4.61 5.09 0.24 0.30 297.03 55 0.00 0.00 4.17 4.61 0.22 0.29 297.02 56 0.00 0.00 3.77 4.17 0.20 0.29 297.02 57 0.00 0.00 3.40 3.77 0.18 0 .28 297.01 58 0.00 0.00 3.06 3.40 0.17 0.27 297.00 59 0.00 0.00 2.75 3.06 0.15 0.24 296.97 60 0.00 0.00 2.48 2.75 0.14 0.22 296.95 Gorrell Engineering-444<1 Corter CreekPOO<woy Stile 108-Bryon, Texas 77802-Telephone: (409) ~26U -Fox: (4:l9) ~3094 -Page 21 Inflow/Outflow Simulation 2-Year Storm Event 9.00 I \ I \ 8.00 7.00 I ........ ' "O 6.00 ' c 0 0 Cl> Cl") ... Cl> 5.00 l a.. -Cl> Cl> u.. 0 :.0 4.00 ::::J u ......, ~ 0 E ::::J 0 3.00 2.00 1.00 0.00 0 ----Pre- Development Hydrograph ' ' ' \. \ \ ' ' \ .. \ \ ' ' . \ 10 20 30 40 Time (Minutes) -- -• Post- Development Outflow Hydrograph Without Detention ---•Post- Development Outflow With Detention 50 60 -- - - -Post- Development "Free-Flow· Garrott Engineering-4444 Corter Crook POO<woy Suite 108-Bryon, Texas 77802-Tolophone: (409) ~2688 -Fox: (4J9) ~3094 -P<:1go 22 Time Inflow (Minutes) (Ft3/Sec) 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.53 1.06 1.59 2.11 2.64 3.17 3.70 4.23 4.76 5.28 5.02 4.76 4.49 4.23 3.96 3.70 3.44 3.17 2.91 2.64 2.38 2.11 1.85 1.59 1.32 1.06 0.79 0.53 0.26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.53 1.59 2.64 3.70 4.76 5.81 6.87 7.93 8.98 10.04 10.31 9.78 9.25 8.72 8.19 7.66 7.13 6.61 6.08 5.55 5.02 4.49 3.96 3.44 2.91 2.38 1.85 1.32 0.79 0.26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow I Outflow Simulation 5-Year Storm Event 2s/t-0 0.00 0.48 1.86 4.07 7.07 10.80 15.20 20.20 25.78 32.01 38.86 45.54 51.33 56.27 60.42 63.91 66.78 69.06 70.76 71.90 72.49 72.56 72.10 71.15 69.71 67.80 65.43 62.62 59.43 55.94 52.16 48.36 44.79 41.43 38.27 35.31 32.52 29.91 27.45 25.14 23.03 21.09 19.30 17.66 16.16 14.78 2s/t+O Outflow 0.00 0.53 2.06 4.50 7.77 11.83 16.61 22.07 28.13 34.76 42.05 49.16 55.32 60.58 64.99 68.61 71.57 73.92 75.67 76.84 77.45 77.52 77.05 76.07 74.58 72.62 70.18 67.28 63.94 60.22 56.20 52.16 48.36 44.79 41.43 38.27 35.31 32.52 29.91 27.45 25.14 23.03 21.09 19.30 17.66 16.16 (Ft3/Sec) 0.00 0.03 0.10 0.21 0.35 0.51 0.71 0.93 1.18 1.38 1.60 1.81 2.00 2.15 2.29 2.35 2.39 2.43 2.45 2.47 2.48 2.48 2.47 2.46 2.44 2.41 2.37 2.33 2.25 2.14 2.02 1.90 1.79 1.68 1.58 1.48 1.39 1.31 1.23 1.15 1.06 0.97 0.89 0.82 0.75 0.69 Depth Elevation (Feet) 0.00 0.04 0.16 0.29 0.36 0.44 0.54 0.65 0.77 0.86 0.96 1.05 1.13 1.20 1.26 1.30 1.34 1.36 1.38 1.40 1.40 1.40 1.40 1.39 1.37 1.35 1.32 1.29 1.25 1.20 1.14 1.09 1.04 0.99 0.95 0.91 0.87 0.83 0.80 0.76 0.71 0.67 0.63 0.59 0.56 0.53 296.73 296.77 296.89 297.02 297.09 297.17 297.27 297.38 297.50 297.59 297.69 297.78 297.86 297.93 297.99 298.03 298.07 298.09 298.11 298.13 298.13 298.13 298.13 298.12 298.10 298.08 298.05 298.02 297.98 297.93 297.87 297.82 297.77 297.72 297.68 297.64 297.60 297.56 297.53 297.49 297.44 297.40 297.36 297.32 297.29 297.26 Gmett Engileerlng-4444 Corter Creek Parkway Suite 108-&yon. Texas 77802 -Telephone: (409) 646-2688 -Fox: (4)9) 646-3094 • Poge 23 46 0.00 0.00 13.51 14.78 0.63 0.50 297.23 47 0.00 0.00 12.35 13.51 0.58 0.48 297.21 48 0.00 0.00 11.28 12.35 0.53 0.45 297.18 49 0.00 0.00 10.29 11.28 0.49 0.43 297.16 50 0.00 0.00 9.39 10.29 0.45 0.41 297.14 51 0.00 0.00 8.56 9.39 0.41 0.39 297.12 52 0.00 0.00 7.80 8.56 0.38 0.38 297.11 53 0.00 0.00 7.10 7.80 0.35 0.36 297.09 54 0.00 0.00 6.46 7.10 0.32 0.35 297.08 55 0.00 0.00 5.87 6.46 0.29 0.33 297.06 56 0.00 0.00 5.33 5.87 0.27 0.32 297.05 57 0.00 0.00 4.83 5.33 0.25 0.31 297.04 58 0.00 0.00 4.38 4.83 0.23 0.30 297.03 59 0.00 0.00 3.96 4.38 0.21 0.29 297.02 60 0.00 0.00 3.57 3.96 0.19 0.28 297.01 Garrett Englnee<lng-4444 Corter Creek Por1<wcry Suite 108-Bryan. Texas 77W2-Telephone: (409) 846-2688 -Fox: (<ll'I) 846-3014 -Page 24 --"O c: 0 0 Cl> Cl) .... Cl> Q. -Cl> Cl> u.. 0 :.0 :::J u ....... ~ 0 E :::J 0 Inflow/Outflow Simulation 5-Year Storm Event 12.00 10.00 f 8.00 ' f 6.00 • , f 4.00 2.00 0.00 0 ----Pre- Development Hydrograph f 'l 'l ' \ 10 \ ' \ \ .. \ .. ' ' 'l \ ~ 20 30 40 Time (Minutes) • Post- Development Outflow Hydrograph Without Detention ----Post- Development Outflow With Detention 50 60 - --- - --Post- Development "Free-Flow" Gmett Engneerlng-4444 Corter Creek Parkway Suite 108-Bryon. Texas 77802 -Telephone: (409) ~2688 -Fox: (4:>9) ~3094 -Page 25 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 0.00 0.59 1.19 1.78 2.37 2.97 3.56 4.15 4.75 5.34 5.93 5.64 5.34 5.04 4.75 4.45 4.15 3.86 3.56 3.26 2.97 2.67 2.37 2.08 1.78 1.48 1.19 0.89 0.59 0.30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.59 1.78 2.97 4.15 5.34 6.53 7.71 8.90 10.08 11.27 11.57 10.97 10.38 9.79 9.19 8.60 8.01 7.41 6.82 6.23 5.64 5.04 4.45 3.86 3.26 2.67 2.08 1.48 0.89 0.30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow I Outflow Simulation 1 0-Year Storm Event 2s/t-0 0.00 0.53 2.08 4.57 7.95 12.14 17.08 22.71 29.04 36.11 43.87 51.44 58.00 63.68 68.63 72.85 76.38 79.23 81.42 82.98 83.91 84.24 83.98 83.16 81 .78 79.86 77.43 74.49 71 .06 67.15 62.78 58.34 54.17 50.24 46.56 43.10 39.84 36.78 33.91 31.21 28.67 26.28 24.07 22.05 20.19 2s/t+O Outflow 0.00 0.59 2.31 5.05 8.73 13.29 18.67 24.79 31 .61 39.13 47.38 55.44 62.41 68.38 73.47 77.82 81.45 84.39 86.65 88.25 89.21 89 .54 89.28 88.43 87.01 85.04 82 .53 79 .51 75.97 71 .95 67.45 62 .78 58.34 54.17 50.24 46.56 43.10 39 .84 36.78 33.91 31 .21 28.67 26.28 24.07 22.05 (Ft3/Sec) 0.00 0.03 0.12 0.24 0.39 0.57 0.79 1.04 1.28 1.51 1.76 2.00 2.21 2.35 2.42 2.48 2.54 2.58 2.61 2.63 2.65 2.65 2.65 2.64 2.62 2.59 2.55 2.51 2.46 2.40 2.33 2.22 2.09 1.96 1.84 1.73 1.63 1.53 1.44 1.35 1.27 1.19 1.10 1.01 0.93 Depth Elevation (Feet) 0.00 0.05 0.18 0.30 0.38 0.47 0.58 0.71 0.82 0.92 1.03 1.13 1.23 1.30 1.36 1.41 1.45 1.48 1.51 1.53 1.54 1.54 1.54 1.53 1.51 1.49 1.46 1.43 1.39 1.34 1.29 1.23 1.17 1.12 1.06 1.02 0.97 0.93 0.89 0.85 0.81 0.78 0.74 0.69 0.65 296.73 296.78 296.91 297.03 297.11 297.20 297.31 297.44 297.55 297.65 297.76 297.86 297.96 298.03 298.09 298.14 298.18 298.21 298.24 298.26 298.27 298.27 298.27 298.26 298.24 298.22 298.19 298.16 298.12 298.07 298.02 297.96 297.90 297.85 297.79 297.75 297.70 297.66 297.62 297.58 297.54 297.51 297.47 297.42 297.38 Gmett Engneerlng • 4444 Corter Creek Parkway Suite 108 ·Bryon, Texas 77802 ·Telephone: (409) 841>-2688 -Fox: (409) 846-3094 • Page 26 45 0.00 0.00 18.48 20.19 0.85 0.61 297.34 46 0.00 0.00 16.90 18.48 0.79 0.58 297.31 47 0.00 0.00 15.46 16.90 0.72 0.55 297.28 48 0.00 0.00 14.14 15.46 0.66 0.52 297.25 49 0.00 0.00 12.92 14.14 0.61 0.49 297.22 50 0.00 0.00 11.80 12.92 0.56 0.46 297.19 51 0.00 0.00 10.78 11.80 0.51 0.44 297.17 52 0.00 0.00 9.84 10.78 0.47 0.42 297.15 53 0.00 0.00 8.97 9.84 0.43 0.40 297.13 54 0.00 0.00 8.18 8.97 0.40 0.38 297.11 55 0.00 0.00 7.45 8.18 0.36 0.37 297.10 56 0.00 0.00 6.78 7.45 0.34 0.35 297.08 57 0.00 0.00 6.16 6.78 0.31 0.34 297.07 58 0.00 0.00 5.60 6.16 0.28 0.33 297.06 59 0.00 0.00 5.08 5.60 0.26 0.31 297.04 60 0.00 0.00 4.60 5.08 0.24 0.30 297.03 Garett Engneerlng-4444 Carter Creek Potl<woy Me 108-Bryan. Texas 77802-Telephone: (409) 84b-2688 -Fox: (4J9) 846-3094 -Page 27 Inflow/Outflow Simulation 10-Year Storm Event 14.00 12.00 10.00 ""' "O c 0 0 Cl> J (/) ... 8.00 Cl> ll.. -Cl> Cl> u.. 0 :0 ::::> 6.00 u ....., ~ 0 E • ::::> • 0 4.00 2.00 0.00 0 ----Pre- Development Hydrograph "\ r .. \ 10 "\. \ ' \ \_ \ \ ' \ ., \ ' 'I. l 20 30 40 Time (Minutes) • Post- Development Outflow Hydrograph Without Detention ----Post- Development Outflow With Detention 50 60 - - - - - - -Post- Development "Free-Flow· Gooett Englnee<lng -444<1 Corter Creek Porl<woy Suite 106-B<yon. Texas 77602 -Telephone: (409) 646-2686 -Fax: (4l9) 646-3094 -Page 26 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.68 1.35 2.03 2.71 3.39 4.06 4.74 5.42 6.10 6.77 6.44 6.10 5.76 5.42 5.08 4.74 4.40 4.06 3.73 3.39 3.05 2.71 2.37 2.03 1.69 1.35 1.02 0.68 0.34 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.68 2.03 3.39 4.74 6.10 7.45 8.81 10.16 11 .52 12.87 13.21 12.53 11.86 11 .18 10.50 9.82 9.15 8.47 7.79 7.11 6.44 5.76 5.08 4.40 3.73 3.05 2.37 1.69 1.02 0.34 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow I Outflow Simulation 25-Year Storm Event 2s/t-0 0.00 0.61 2.38 5.23 9.10 13.89 19.54 25.98 33.31 41.47 50.41 59.13 66.87 73.73 79.74 84.91 89.28 92.86 95.69 97.77 99.13 99.80 99.79 99.12 97.81 95.89 93.36 90.24 86.56 82.33 77.56 72.60 67.78 63.10 58.64 54.45 50.52 46.81 43.34 40.07 36.99 34.11 31 .39 28.84 26.45 24.23 2s/t+O Outflow 0.00 0.68 2.64 5.77 9.98 15.20 21 .35 28.35 36.14 44.83 54.34 63.62 71 .66 78.73 84.91 90.24 94.74 98.43 101.33 103.48 104.88 105.57 105.56 104.87 103.52 101.54 98.93 95.73 91 .94 87.58 82.67 77.56 72 .60 67.78 63.10 58.64 54.45 50.52 46.81 43.34 40.07 36.99 34.11 31 .39 28.84 26.45 (Ft3/Sec) 0.00 0.03 0.13 0.27 0.44 0.65 0.90 1.18 1.42 1.68 1.97 2.25 2.39 2.50 2.59 2.66 2.73 2.78 2.82 2.85 2.87 2.88 2.88 2.87 2.86 2.83 2.79 2.74 2.69 2.62 2.55 2.48 2.41 2.34 2.23 2.10 1.97 1.85 1.74 1.63 1.54 1.44 1.36 1.28 1.20 1.11 Depth Elevation (Feet) 0.00 0.05 0.21 0.32 0.40 0.51 0.64 0.78 0.88 0.99 1.12 1.24 1.34 1.42 1.49 1.55 1.60 1.64 1.67 1.70 1.71 1.72 1.72 1.71 1.70 1.68 1.65 1.61 1.57 1.52 1.46 1.40 1.35 1.29 1.23 1.18 1.12 1.07 1.02 0.97 0.93 0.89 0.85 0.82 0.78 0.74 296.73 296.78 296.94 297.05 297.13 297.24 297.37 297.51 297.61 297.72 297.85 297.97 298.07 298.15 298.22 298.28 298.33 298.37 298.40 298.43 298.44 298.45 298.45 298.44 298.43 298.41 298.38 298.34 298.30 298.25 298.19 298.13 298.08 298.02 297.96 297.91 297.85 297.80 297.75 297.70 297.66 297.62 297.58 297.55 297.51 297.47 Gooett Englneerk"lg-4444 Cort&f Creek Po1cwcry Slife 108-Bryon. T&XO$ 77602-T9'9J:>hone: (409) 846-2688 -F<nc (4l9) 646-3094 -Poge 29 46 0.00 0.00 22.19 24.23 1.02 0.69 297.42 47 0.00 0.00 20.31 22.19 0.94 0.65 297.38 48 0.00 0.00 18.59 20.31 0.86 0.62 297.35 49 0.00 0.00 17.01 18.59 0.79 0.58 297.31 50 0.00 0.00 15.56 17.01 0.73 0.55 297.28 51 0.00 0.00 14.23 15.56 0.67 0.52 297.25 52 0.00 0.00 13.01 14.23 0.61 0.49 297.22 53 0.00 0.00 11.88 13.01 0.56 0.47 297.20 54 0.00 0.00 10.85 11.88 0.52 0.44 297.17 55 0.00 0.00 9.90 10.85 0.47 0.42 297.15 56 0.00 0.00 9.03 9.90 0.44 0.40 297.13 57 0.00 0.00 8.23 9.03 0.40 0.38 297.11 58 0.00 0.00 7.50 8.23 0.37 0.37 297.10 59 0.00 0.00 6.82 7.50 0.34 0.35 297.08 60 0.00 0.00 6.20 6.82 0.31 0.34 297.07 Gooett Englnee<lng -4444 Corter Creek Parkway Suite 106-B<yon. Texas 77fJIJ2 -T,;ephone' (409) 646-2666 -Fa" (<ll9) 646-3094 -Page 30 Inflow/Outflow Simulation 25-Year Storm Event 14.00 12.00 10.00 -. I "O I c 0 0 Q) Cl) .... Q) 8.00 0... -Q) Q) LL. 0 :0 ::J 6.00 () ...., ~ 0 E ::J 0 4.00 2.00 0.00 0 ----Pre- Development Hydrograph I l f t \ ... \ \ " .. \ 10 \ \ ' \ \ l. 'l 1. \ ~ " ' 20 30 40 Time (Minutes) • Post- Development Outflow Hydrograph Without Detention ----Post- Development Outflow With Detention 50 60 -------Post- Development "Free-Flow" Genett Engineering -4444 Corter Creek Parkway Suite 108-Bryon. Texas 77802 -Telephone: (409) 846-2688 -F<lx: (4:J9) 846-3094 -Poge 31 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.77 1.53 2.30 3.06 3.83 4.60 5.36 6.13 6.89 7.66 7.28 6.89 6.51 6.13 5.74 5.36 4.98 4.60 4.21 3.83 3.45 3.06 2.68 2.30 1.91 1.53 1.15 0.77 0.38 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.77 2.30 3.83 5.36 6.89 8.42 9.96 11.49 13.02 14.55 14.93 14.17 13.40 12.64 11.87 11.10 10.34 9.57 8.81 8.04 7.28 6.51 5.74 4.98 4.21 3.45 2.68 1.91 1.15 0.38 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow I Outflow Simulation 50-Year Storm Event 2s/t-0 0.00 0.69 2.69 5.92 10.30 15.73 22.12 29.48 37.84 47.14 57.32 67.45 76.54 84.62 91.73 97.89 103.12 107.46 110.94 113.56 115.37 116.39 116.63 116.11 114.88 112.93 110.29 106.99 103.04 98.46 93.27 87.85 82.59 77.49 72.53 67.71 63.04 58.58 54.40 50.46 46.76 43.29 40.02 36.95 34.07 31.36 2s/t+O Outflow 0.00 0.77 2.99 6.52 11.28 17.19 24.15 32.07 40.97 50.86 61.69 72.25 81.61 89.94 97.26 103.60 108.99 113.46 117.04 119.74 121.61 122.65 122.90 122.37 121.09 119.09 116.37 112.97 108.90 104.19 98.84 93.27 87.85 82.59 77.49 72.53 67.71 63.04 58.58 54.40 50.46 46.76 43.29 40.02 36.95 34.07 (Ft3/Sec) 0.00 0.04 0.15 0.30 0.49 0.73 1.02 1.30 1.56 1.86 2.19 2.40 2.54 2.66 2.76 2.86 2.93 3.00 3.05 3.09 3.12 3.13 3.13 3.13 3.11 3.08 3.04 2.99 2.93 2.86 2.79 2.71 2.63 2.55 2.48 2.41 2.34 2.23 2.09 1.97 1.85 1.74 1.63 1.53 1.44 1.36 Depth Elevation (Feet) 0.00 0.06 0.24 0.33 0.43 0.55 0.69 0.83 0.94 1.07 1.22 1.34 1.45 1.54 1.63 1.70 1.76 1.81 1.85 1.88 1.90 1.92 1.92 1.91 1.90 1.88 1.85 1.81 1.76 1.71 1.65 1.58 1.52 1.46 1.40 1.35 1.29 1.23 1.18 1.12 1.07 1.02 0.97 0.93 0.89 0.85 296.73 296.79 296.97 297.06 297.16 297.28 297.42 297.56 297.67 297.80 297.95 298.07 298.18 298.27 298.36 298.43 298.49 298.54 298.58 298.61 298.63 298.65 298.65 298.64 298.63 298.61 298.58 298.54 298.49 298.44 298.38 298.31 298.25 298.19 298.13 298.08 298.02 297.96 297.91 297.85 297.80 297.75 297.70 297.66 297.62 297.58 Grnett Englne&1lng -4444 Corter Creek POll<woy Suite 108-Bryon. Texas 77802 -T~ephone: ('109) 846-2688 -Fox: ('109) 846-3014 -Page 32 46 0.00 0.00 28.81 31.36 1.27 0.82 297.55 47 0.00 0.00 26.41 28.81 1.20 0.78 297.51 48 0.00 0.00 24.20 26.41 1.11 0.74 297.47 49 0.00 0.00 22.16 24.20 1.02 0.69 297.42 50 0.00 0.00 20.29 22.16 0.94 0.65 297.38 51 0.00 0.00 18.57 20.29 0.86 0.61 297.34 52 0.00 0.00 16.99 18.57 0.79 0.58 297.31 53 0.00 0.00 15.54 16.99 0.72 0.55 297.28 54 0.00 0.00 14.21 15.54 0.67 0.52 297.25 55 0.00 0.00 12.99 14.21 0.61 0.49 297.22 56 0.00 0.00 11.87 12.99 0.56 0.47 297.20 57 0.00 0.00 10.84 11.87 0.52 0.44 297.17 58 0.00 0.00 9.89 10.84 0.47 0.42 297.15 59 0.00 0.00 9.02 9.89 0.43 0.40 297.13 60 0.00 0.00 8.22 9.02 0.40 0.38 297.11 Gooett Engnee<lng -<1444 Corter Creek POfl<way Sl.ite 106-Bryan, Texas 77602 ·Telephone: (409) 641>-2666 ·Fox: (4'.19) 641>-3094 • Pcrge 33 ,..... "O c 0 0 Q) (/) .... Q) 0... -Q) Q) ...... 0 :0 :J 0 ....... ~ 0 = :J 0 Inflow/Outflow Simulation 50-Year Storm Event 16.00 14.00 12.00 f I 10.00 8.00 I I 6.00 • 4.00 2.00 0.00 0 ----Pre- Development Hydrogra ph \ ~ \ ' .. \ ' 10 .. 1 \ t \ \ \ \ \ l 20 30 40 Time (Minutes) • Post- Development Outflow Hydrograph Without Detention ----Post- Development Outflow With Detention 50 60 - - - - - - -Post- Developm ent "Free-Flow" Garett Englnee<ng -4444 Corter Creek Parkway SUie 106-Elf)'on, Texas 77602 -Telephone: (409) 646-2666 -Fox: (4l9) 646-3094 -Page 34 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.80 1.60 2.40 3.20 4.00 4.80 5.60 6.40 7.20 8.00 7.60 7.20 6.80 6.40 6.00 5.60 5.20 4.80 4.40 4.00 3.60 3.20 2.80 2.40 2.00 1.60 1.20 0.80 0.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.80 2.40 4.00 5.60 7.20 8.80 10.39 11.99 13.59 15.19 15.59 14.79 13.99 13.19 12.39 11.59 10.79 10.00 9.20 8.40 7.60 6.80 6.00 5.20 4.40 3.60 2.80 2.00 1.20 0.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow I Outflow Simulation 100-Year Storm Event 2s/t-0 2s/t+O Outflow 0.00 0.00 0.72 0.80 2.81 3.12 6.19 6.81 10.76 11.78 16.43 17.96 23.10 25.22 30.82 33.50 39.58 42.82 49.31 53.17 59.96 64.50 70.65 75.55 80.25 85.44 88.81 94.25 96.33 102.00 102.87 108.73 108.43 114.46 113.06 119.23 116.79 123.06 119.62 125.98 121.60 128.02 122.74 129.20 123.08 129.54 122.63 129.08 121.41 127.83 119.46 125.81 116.78 123.06 113.41 119.58 109.35 115.40 104.64 110.55 99.28 105.04 93.70 99.28 88.27 93.70 83.00 88.27 77.88 83.00 72.91 77.88 68.09 72.91 63.40 68.09 58.92 63.40 54.71 58.92 50.76 54.71 47.04 50.76 43.55 47.04 40.27 43.55 37.19 40.27 34.29 37.19 (Ft3/Sec) 0.00 0.04 0.16 0.31 0.51 0.76 1.06 1.34 1.62 1.93 2.27 2.45 2.59 2.72 2.83 2.93 3.01 3.08 3.14 3.18 3.21 3.23 3.23 3.22 3.21 3.18 3.14 3.09 3.03 2.96 2.88 2.79 2.71 2.63 2.56 2.48 2.41 2.34 2.24 2.10 1.98 1.86 1.75 1.64 1.54 1.45 Depth Elevation (Feet) 0.00 0.06 0.25 0.34 0.44 0.57 0.72 0.84 0.97 1.10 1.25 1.38 1.49 1.59 1.68 1.76 1.82 1.88 1.92 1.95 1.98 1.99 2.00 1.99 1.98 1.95 1.92 1.88 1.83 1.78 1.72 1.65 1.59 1.53 1.47 1.41 1.35 1.30 1.24 1.18 1.12 1.07 1.02 0.98 0.93 0.89 296.73 296.79 296.98 297.07 297.17 297.30 297.45 297.57 297.70 297.83 297.98 298.11 298.22 298.32 298.41 298.49 298.55 298.61 298.65 298.68 298.71 298.72 298.73 298.72 298.71 298.68 298.65 298.61 298.56 298.51 298.45 298.38 298.32 298.26 298.20 298.14 298.08 298.03 297.97 297.91 297.85 297.80 297.75 297.71 297.66 297.62 Gooelt Engnee<ng -4444 Corter Creek Porkwoy St.ite 108-Bryon. Texos 77802 -Telephone: (409) 846-26a8 -Fox: (409) 84<>-3094 • Poge 35 46 0.00 0.00 31.56 34.29 1.36 0.85 297.58 47 0.00 0.00 29.00 31.56 1.28 0.82 297.55 48 0.00 0.00 26.60 29.00 1.20 0.78 297.51 49 0.00 0.00 24.36 26.60 1.12 0.74 297.47 50 0.00 0.00 22.31 24.36 1.03 0.70 297.43 51 0.00 0.00 20.43 22.31 0.94 0.66 297.39 52 0.00 0.00 18.70 20.43 0.86 0.62 297.35 53 0.00 0.00 17.11 18.70 0.79 0.58 297.31 54 0.00 0.00 15.65 17.11 0.73 0.55 297.28 55 0.00 0.00 14.31 15.65 0.67 0.52 297.25 56 0.00 0.00 13.08 14.31 0.62 0.49 297.22 57 0.00 0.00 11.95 13.08 0.57 0.47 297.20 58 0.00 0.00 10.91 11.95 0.52 0.44 297.17 59 0.00 0.00 9.96 10.91 0.48 0.42 297.15 60 0.00 0.00 9.08 9.96 0.44 0.40 297.13 Garrett Englnee<lng • 4444 Corter Creek Parkway Suite 108 • B<yon. Texas 77802 ·Telephone: (409) 841>-2688 ·Fox: (409) 846-3094 • Poge 36 Inflow/Outflow Simulation 100-Year Storm Event 18.00 2.00 0.00 0 ----Pre- Development Hydrograph 10 20 30 40 Time (Minutes) • Post- Development Outflow Hydrograph Without Detention ---•Post- Development Outflow With Detention 50 60 - - -----Post- Development "Free-Flow" Gorrett Engineering· 4444 Corter Creek Pcll1<woy Wte 108· Bryon, Texas 77f!JJ2 ·Telephone: (409) 846-2688 ·Fox: (4J9) 846-3094 • Page 37 Inflow/Outflow Simulation 2-Year Storm Event 3.50 3.00 2.50 ........ 'U c 0 0 Cl> (f) .... 2.00 Cl> a.. -Cl> Cl> u.. 0 :0 ::J u 1.50 ...... 3'; 0 = ::J 0 l.00 0.50 0.00 0 10 20 30 40 50 60 Time (Minutes) Pre-Development Hydrograph ---Total Post-Development Hydrograph Garre" Englneerng-4444 Corter Creek Por1<woy SUie 108-Blyon, Texas 77802-Telephone: (409) 84&-2638 -Fox: (4:l9) 84&-3094 -Poge 38 - Inflow/Outflow Simulation 5-Year Storm Event 4.00 3.50 3.00 ....... "O c 0 2.50 0 Q) (/) ... Q) 0... -Q) Q) 2.00 LL. 0 :0 :J () ....,, ~ 0 1.50 E :J 0 1.00 0.50 0.00 0 10 20 30 40 50 60 Time (Minutes) Pre-Development Hydrograph ---Total Post-Development Hydrograph Ganelt Engheerlng • 4444 Corter Creek POl1<woy Me 108· Bryon, Texas 77802 ·Telephone: (409) 841>-2688 ·Fox: (<ll9) 841>-3094 • Poge 39 Inflow/Outflow Simulation 10-Year Storm Event 4.50 4.00 3.50 "' 3.00 "O c 0 0 G> (/) ~ G> 2.50 ll.. -G> G> LL 0 :.a :J 2.00 u ....,., ~ 0 E :J 0 1.50 1.00 0.50 0.00 0 10 20 30 40 50 60 Time (Minutes) Pre-Development Hydrograph ---•Total Post-Development Hydrograph Garrett Englnee<lng-4444 Carter Creek POf\<way Stile 108-Bryan. Texas 77802-Telephone: (409) 846-2688 -Fox: (4J9) 846-3094 -Page 40 6.00 5.00 1J 4.00 c 0 0 Q) V') £ Qi ~ 3.00 0 :0 :::> u ...... ~ 0 E :::> 0 2.00 1.00 0.00 Inflow/Outflow Simulation 25-Year Storm Event 0 10 20 30 40 50 Time (Minutes) ---Pre-Development Hydrograph ---Total Post-Development Hydrograph Garrett Eng1neer1n9 -4444 Corter Creek Poowoy Suite 106-Bryon. Texas 77&!2 -Telephone: (4'.l9) 646-2666 -Fox: (4'.l9) 646-3094 -Pc1ge 41 60 6.00 5.00 u 4.00 c 0 0 Cl> (/) Q; ll.. Q; Cl> LL. 3.00 0 :a :::> u ...., ~ 0 = :::> 0 2.00 1.00 0.00 0 Inflow/Outflow Simulation 50-Year Storm Event 10 20 30 40 50 Time (Minutes) ---Pre-Development Hydrograph ---•Total Post-Development Hydrograph Gooett Englnee<lng-4444 Cort"' Creek Parkway Suite 108-B<yon. Texas 77802 -Telephone: (409) 841>-2688 -Fox: (409) 846-3094 -Poge 42 60 Inflow/Outflow Simulation 100-Year Storm Event 7.00 6.00 5.00 ,..,, 'U c 0 0 Cl> (/) ... 4.00 Cl> Q.. -Cl> Cl> u.. 0 :.a :::> u 3.00 ....., ~ 0 == :::> 0 2.00 1.00 0.00 0 10 20 30 40 50 60 Time (Minutes) ---Pre-Development Hydrograph ---Total Post-Development Hydrograph Gooett Engineering -4444 Corter Creek Parkway Suite 108-Bryon. Texas 77&J2 -Telephone: (409) 846-2688 -F<Jx: (4)9) 846-3094 -Page 43 100% 90% 80% 70% Q) E :::1 0 60% > E :::1 E ")( 50% 0 :E -0 -40% c Q) 0 ... Q) 0.. 30% -- 20% -- 10% -- 0% Detention Pond Storage Volumes as Percent of Maximum Volume - -- --- - - -- -- - -- -- - -- --- - ....__ I I I I I I I I I I - - - - - - - 2-yeor 5-yeor 10-yeor 25-yeor 50-yeor 100-yeor Design Storm Storm Simulation Synopsis 2-ear 5-year 10-year 25-year 50-year 100-year Storm Depth 1.22 1.40 1.54 1.72 1.92 2.00 Storm Elevation 297.95 298.13 298.27 298.45 298.65 298.73 Storm Volume 1789 2198 2607 3080 3593 3789 Maximum Capacity 4808 4808 4808 4808 4808 4808 Percent of Capacity 37% 46% 54% 64% 75% 79% Garrett Enghee<lng -4444 Corter Creek P011<way Suite 108 ·Bryon. Texas 77802 -Telephone: (409) 846-2688 -Fox: (4J9) 846-3094 -Page 44 .------v------y----).--- Range Data: Allowable HW Elevc: Minimum 296.65 HW Elev (ft) Discharge (cfs) 296.65 0.00 296.66 0.00 296.67 0.00 296.68 0.00 296.69 0.00 296.70 0.00 296.71 0.00 296.72 0.00 296.73 0.00 296.74 0.00 296.75 0.00 296.76 0.00 296.77 0.28e-2 296.78 0.01 296.79 0.28e-2 296.80 0.25e-2 296.81 0.02 296.82 0.28e-2 296.83 0.27e-2 296.84 0.27e-2 296.85 0.27e-2 296.86 0.04 296.87 0.27e-2 296.88 0.06 296.89 0.06 296.90 0.07 296.91 0.08 296.92 0.09 296.93 0.10 296.94 0.11 296.95 0.12 296.96 0.13 296.97 0.14 296.98 0.15 296.99 0.16 297.00 0.17 297.01 0.18 297.02 0.20 297.03 0.21 297.04 0.22 297.05 0.24 297.06 0.25 297.07 0.27 297.08 0.28 297.09 0.30 297.10 0.31 297.11 0.33 c:\haestadlacademic\cvm\project1 .cvm Maximum 299.10 C::U. 12 u e R:'1'2 IO L-( 4 ?.U.C... r~epo Worksheet-1 Increment O.Q1 ft Academic Edition Project Engineer: Kenneth Havel CulvertMaster v1 .0 05/03/00 07:28:41 AM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 5 HW Elev (ft) Discharge (cfs) 297.12 0.34 297.13 0.36 297.14 0.38 297.15 0.39 297.16 0.41 297.17 0.43 297.18 0.45 297.19 0.47 297.20 0.49 297.21 0.51 297.22 0.52 297.23 0.54 297.24 0.56 297.25 0.59 297.26 0.61 297.27 0.63 297.28 0.65 297.29 0.67 297.30 0.69 297.31 0.71 297.32 0.74 297.33 0.76 297.34 0.78 297.35 0.80 297.36 0.83 297.37 0.85 297.38 0.88 297.39 0.90 297.40 0.92 297.41 0.95 297.42 0.97 297.43 1.00 297.44 1.02 297.45 1.05 297.46 1.07 297.47 1.10 297.48 1.12 297.49 1.15 297.50 1.17 297.51 1.20 297.52 1.22 297.53 1.25 297.54 1.28 297.55 1.30 297.56 1.33 297.57 1.35 297.58 1.38 297.59 1.41 297.60 1.43 297.61 1.46 297.62 1.48 c:\haestad\academic\cvm\project1 .cvm 05103100 07:28:41 AM © Haestad Methods, Inc. Rating Table Report Worksheet-1 Project Engineer: Kenneth Havel Academic Edition CulvertMaster v1 .0 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 2 of 5 HW Elev (ft) 297.63 297.64 297.65 297.66 297.67 297.68 297.69 297.70 297.71 297.72 297.73 297.74 297.75 297.76 297.77 297.78 297.79 297.80 297.81 297.82 297.83 297.84 297.85 297.86 297.87 297.88 297.89 297.90 297.91 297.92 297.93 297.94 297.95 297.96 297.97 297.98 297.99 298.00 298.01 298.02 298.03 298.04 298.05 298.06 298.07 298.08 298.09 298.10 298.11 298.12 298.13 Discharge (cfs) 1.51 1.53 1.56 1.59 1.61 1.64 1.66 1.69 1.71 1.74 1.76 1.79 1.81 1.84 1.86 1.88 1.91 1.93 1.96 1.98 2.00 2.02 2.05 2.07 2.09 2.11 2.12 2.14 2.16 2.18 2.19 2.21 2.23 2.24 2.26 2.28 2.29 2.31 2.33 2.34 2.36 2.37 2.39 2.41 2.42 2.44 2.45 2.47 2.48 2.50 2.51 Rating Table Report Worksheet-1 c:\haestad\academic\cvm\project1 .cvm Academic Edition 05/03/00 07:28:41 AM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA Project Engineer: Kenneth Havel CulvertMaster v1 .0 (203) 755-1666 Page 3 of 5 HW Elev (ft) 298.14 298.15 I 298.16 298.17 298.18 298.19 298.20 298.21 298.22 298.23 298.24 298.25 298.26 298.27 298.28 298.29 298.30 298.31 298.32 298.33 298.34 298.35 298.36 298.37 298.38 298.39 298.40 298.41 298.42 298.43 298.44 298.45 298.46 298.47 298.48 298.49 298.50 298.51 298.52 298.53 298.54 298.55 298.56 298.57 298.58 298.59 298.60 298.61 298.62 298.63 298.64 Discharge (cfs) 2.53 2.54 2.56 2.57 2.58 2.60 2.61 2.63 2.64 2.66 2.67 2.68 2.70 2.71 2.73 2.74 2.75 2.77 2.78 2.79 2.81 2.82 2.83 2.85 2.86 2.87 2.89 2.90 2.91 2.92 2.94 2.95 2.96 2.97 2.99 3.00 3.01 3.02 3.04 3.05 3.06 3.07 3.09 3.10 3.11 3.12 3.13 3.15 3.16 3.17 3.18 Rating Table Report Worksheet-1 Project Engineer: Kenneth Havel c:lhaestad\academic\cvm\project1 .cvm Academic Edition CulvertMaster v1 .0 05/03/00 07:28:41 AM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 4 of 5 HW Elev (ft) 298.65 298.66 298.67 298.68 298.69 298.70 298.71 298.72 298.73 298.74 298.75 298.76 298.77 298.78 298.79 298.80 298.81 298.82 298.83 298.84 298.85 298.86 298.87 298.88 298.89 298.90 298.91 298.92 298.93 298.94 298.95 298.96 298.97 298.98 298.99 299.00 299.01 299.02 299.03 299.04 299.05 299.06 299.07 299.08 299.09 299.10 Discharge (cfs) 3.19 3.20 3.22 3.23 3.24 3.25 3.26 3.27 3.29 3.30 3.31 3.32 3.33 3.34 3.35 3.36 3.37 3.39 3.40 3.41 3.42 3.43 3.44 3.45 3.46 3.47 3.48 3.49 3.51 3.52 3.53 3.54 3.55 3.56 3.57 3.58 3.59 3.60 3.61 3.62 3.63 3.64 3.65 3.66 3.67 3.68 Rating Table Report Worksheet-1 c:\haestad\academiclcvm\project1 .cvm Academic Edition 05/03/00 07:28:41 AM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA Project Engineer: Kenneth Havel CulvertMaster v1 .0 (203) 755-1666 Page 5 of 5