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HomeMy WebLinkAbout16 Development Permit 470 Edelweiss Phase 4b. ~ McCLURE ENGINEERING, INC.-------~ly2s , 1997 Mr. Steve Homeyer Graduate Engineer City of College Station P .O . Box 9960 College Station, TX 77842-9960 RE: Edelweiss Estates Phase 4-B Drainage Addendum. Dear Steve : APPROVED FOR The "Storm Drainage Analysis for EDELWEISS ESTATES PHASES ONE THROUGH SIX'' dated October, 1996 and revised January, 1997 is appropriate for Edelweiss Estates Phase 4-B with the following modifications : An additional inlet was added along Graz Drive . This drainage area is labeled 134 .1 and is shown on the revised Drainage Area Map , Exhibit "B-1" enclosed with this letter. The extra inlet was necessary to efficiently capture runoff without inundating the street. These changes are reflected on the Exhibits "C-1 ", "C -2" and "C-3" enclosed with this letter. The drainage areas affected by this change are shown in red on the tabular exhibits . Please attach these two (2) sets of the exhibits to your current copy of the above referenced "Storm Drainage Analysis for EDELWEISS ESTATES PHASES ONE THROUGH SIX''. Upon the next submission of the complete report , we will incorporate these changes . Sincerely, JJM/mlm Enclosures (2 set s) 1722 Broadmoor, Suite 21 O • Bryan , Texas 77802 • (409) 776-6700 • FAX (409) 776-6699 <( :: UJ c 0 a::: UJ _, _, <( <( 0.. <( ~ LL. UJ 0 c UJ a::: j::: a::: <( z C> _, <( UJ z <( (.) 5 ::c <( UJ z _, > c ~ _, a::: .... ~ ~ UJ <( c;; <( UJ C> c UJ 0 .... >z 0 za::: UJ 0 c .... :::> <( a::: a: I-o~ NO. AC. 0.4 0.55 0.95 ft 60A 0.99 0.99 0.00 0.00 0.40 400.0 608 2.88 2.47 0.00 0.41 1.38 350.0 65A 0.65 0.00 0.65 0.00 0.36 182.0 658 1.18 0.00 1.18 0.00 0.65 213.0 70.0 0.77 0.00 0.00 0.77 0.73 30.0 75.0 0.35 0.00 0.00 0.35 0.33 30.0 80.0 8.61 8.61 0.00 0.00 3.45 500.0 81.0 1.89 0.00 1.89 0.00 1.04 330.0 82A 0.85 0.00 0.85 0.00 0.47 460.0 828 1.22 0.00 1.22 0.00 0.67 180.0 83.0 1.35 0.00 1.35 0.00 0.74 150.0 84A 0.21 0.00 0.21 0.00 0.12 100.0 848 0.63 0.00 0.63 0.00 0.35 70.0 85.0 0.88 0.00 0.88 0.00 0.49 70.0 86.0 0.00 0.00 0.00 0.00 0.00 1.0 87A 1.53 0.00 1.53 0.00 0.84 500.0 878 1.45 0.00 1.45 0.00 0.80 280.0 88.0 1.54 0.00 1.54 0.00 0.85 145.0 89A 1.21 0.00 1.21 0.00 0.67 340.0 898 0.66 0.00 0.66 0.00 0.36 70.0 90.0 0.98 0.00 0.98 0.00 0.54 70.0 91.0 0.00 0.00 0.00 0.00 0.00 1.0 100.0 1.46 0.00 1.46 0.00 0.80 40.0 101.0 5.50 0.00 5.50 0.00 3.03 140.0 102.0 1.80 0.00 1.80 0.00 0.99 160.0 103.0 0.83 0.00 0.83 0.00 0.46 80.0 104.0 0.36 0.00 0.36 0.00 0.20 50.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Edelweiss Estates, Phases 1 Through 6 :: 0 :: :: _, LL. 0 0 c _, _, z LL. LL. ~ 5 a::: ::c a::: u ~ UJ .... UJ ~ a::: _, ~ C> ~ _, 0 ~ UJ _, :::::> z :::::> _, _, UJ > <( UJ Ill "' a II) 0 LL. C> ~ C> ~ > (.) :::::> ~ ~ a ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs 4.0 1.0 1.0 0.7 9.4 9.4 6.49 2.6 7.9 3.1 3.0 90.0 0.5 0.7 9.9 9.9 6.35 8.7 7.7 10.6 2.0 95.0 1.0 0.9 4.9 5.0 8.22 3.0 9.9 3.5 2.0 244.0 1.3 1.0 8.0 8.0 6.96 4.5 8.4 5.5 0.3 800.0 4.0 1.4 10.2 10.2 6.26 4.6 7.6 5.6 0.3 300.0 2.0 1.4 3.8 5.0 8.22 2.7 9.9 3.3 5.0 500.0 6.0 1.1 15.6 15.6 5.08 17.5 6.2 21.5 1.6 1.0 1.0 0.5 11.2 11.2 6.01 6.3 7.3 7.6 5.0 20.0 0.2 0.8 10.6 10.6 6.17 2.9 7.5 3.5 2.0 470.0 4.0 1.3 8.3 8.3 6.85 4.6 8.3 5.6 1.5 470.0 4.0 1.3 7.8 7.8 7.02 5.2 8.5 6.3 1.0 1.0 1.0 0.7 2.4 5.0 8.22 1.0 9.9 1.2 0.7 300.0 1.5 1.2 5.2 5.2 8.11 2.8 9.7 3.4 0.7 330.0 2.5 1.4 4.8 5.0 8.22 4.0 9.9 4.8 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 5.0 1.0 1.0 0.7 11.8 11.8 5.86 4.9 7.2 6.0 4.0 450.0 3.0 1.2 10.2 10.2 6.28 5.0 7.6 6.1 1.5 450.0 3.0 1.2 8.0 8.0 6.96 5.9 8.4 7.1 3.0 40.0 0.2 0.7 9.0 9.0 6.62 4.4 8.0 5.4 0.7 300.0 1.5 1.2 5.2 5.2 8.11 3.0 9.7 3.5 0.7 350.0 2.0 1.3 5.5 5.5 7.95 4.3 9.5 5.2 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 0.4 20.0 0.1 0.8 1.2 5.0 8.22 6.6 9.9 7.9 1.5 800.0 5.0 1.3 11.7 11.7 5.88 17.8 7.2 21.7 1.6 520.0 3.0 1.2 9.5 9.5 6.46 6.4 7.8 7.8 0.8 500.0 2.5 1.2 7.8 7.8 7.01 3.2 8.5 3.9 0.5 100.0 0.5 1.1 2.4 5.0 8.22 1.6 9.9 2.0 0 14') 0 ..... II) N !:: a ~ a In/Hr cfs In/Hr cfs 8.8 3.5 10.1 4.0 8.7 11.9 9.9 13.6 11.0 3.9 12.5 4.5 9.4 6.1 10.8 7.0 8.6 6.3 9.8 7.2 11.0 3.7 12.5 4.2 7.0 24.3 8.1 27.8 8.2 8.6 9.4 9.8 8.4 4.0 9.6 4.5 9.3 6.2 10.6 7.1 9.5 7.1 10.8 8.1 11.0 1.3 12.5 1.5 10.8 3.8 12.4 4.3 11.0 5.3 12.5 6.1 11.0 0.0 12.5 0.0 8.0 6.8 9.2 7.8 8.6 6.9 9.8 7.8 9.4 8.0 10.7 9.1 9.0 6.0 10.3 6.9 10.8 4.0 12.4 4.5 10.7 5.8 12.1 6.6 11.0 0.0 12.5 0.0 11.0 8.8 12.5 10.1 8.1 24.4 9.2 27.9 8.8 8.7 10.1 10.0 9.5 4.3 10.8 5.0 11.0 2.2 12.5 2.5 ~ ~ a In/Hr cfs 11.4 4.5 11.2 15.4 14.1 5.1 12.1 7.9 11.0 8.1 14.1 4.7 9.1 31.5 10.6 11.1 10.9 5.1 12.0 8.0 12.2 9.1 14.1 1.6 13.9 4.8 14.1 6.8 14.1 0.0 10.4 8.8 11.1 8.8 12.1 10.3 11.6 7.7 13.9 5.1 13.7 7.4 14.1 0.0 14.1 11.3 10.4 31.6 11.4 11.3 12.2 5.6 14.1 2.8 0 0 0 0 ..... !:: a In/Hr cfs 12.8 5.1 12.6 17.3 15.8 5.7 13.6 8.9 12.4 9.1 15.8 5.3 10.3 35.5 12.0 12.5 12.2 5.7 13.4 9.0 13.7 10.2 15.8 1.8 15.6 5.4 15.8 7.7 15.8 0.0 11.7 9.9 12.4 9.9 13.6 11.6 13.0 8.7 15.6 5.7 15.3 8.3 15.8 0.0 15.8 12.7 11.7 35.5 12.8 12.7 13.7 6.3 15.8 3.1 5128/97 vralldra.xls Exhibit C-1 c( ;: w c 0 er:: w ....I ....I c( c( a.. c( ~ .. w 0 c w er:: i= er:: c( z (!) ....I c( w z c( () ~ ::t: c( ....I ~~ w ....I z c( c ~ ~ er:: I-~ c;; w (!) I-0 >z 0 zcr:: w £i 0 o~ c I-:::> c( er:: I-NO. AC. 0.4 0.55 0.95 fl 105.0 1.84 0.00 1.84 0.00 1.01 160.0 106.0 5.50 0.00 5.50 0.00 3.03 140.0 107.0 1.60 0.00 1.60 0.00 0.88 250.0 108.0 0.00 0.00 0.00 0.00 0.00 1.0 109A 0.53 0.00 0.53 0.00 0.29 200.0 1098 1.71 0.00 1.71 0.00 0.94 200.0 110.0 1.32 0.00 1.32 0.00 0.73 140.0 111A 0.38 0.00 0.38 0.00 0.21 200.0 1118 1.47 0.00 1.47 0.00 0.81 180.0 112.0 1.38 0.00 1.38 0.00 0.76 280.0 113.0 0.00 0.00 0.00 0.00 0.00 1.0 114A 1.96 0.00 1.96 0.00 1.08 590.0 1148 1.17 0.00 1.17 0.00 0.64 160.0 115.0 1.21 0.00 1.21 0.00 0.67 180.0 116A 2.08 0.00 2.08 0.00 1.15 700.0 1168 1.27 0.00 1.27 0.00 0.70 300.0 117.0 1.50 0.00 1.50 0.00 0.83 300.0 118.0 0.00 0.00 0.00 0.00 0.00 1.0 120A 1.99 0.00 1.99 0.00 1.10 615.0 1208 1.04 0.00 1.04 0.00 0.57 100.0 121.0 1.89 0.00 1.89 0.00 1.04 260.0 122.0 0.00 0.00 0.00 0.00 0.00 1.0 123.0 0.72 0.00 0.72 0.00 0.40 70.0 124.0 0.27 0.00 0.27 0.00 0.15 120.0 125A 1.16 0.00 1.16 0.00 0.64 100.0 1258 3.22 0.00 3.22 0.00 1.77 200.0 126.0 1.69 0.00 1.69 0.00 0.93 400.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Edelweiss Estates, Phases 1 Through 6 ;: 0 ;: ;: ....I .. 0 0 c ....I ....I z .. .. ~ ~ er:: ::t: er:: w I-w u :=. u er:: ....I i: (!) i: ....I 0 I-£ W....1 :::> z :::>....I ....I w > c( (!) ~ (!) ~ w l'G ti) N It) 0 .. > () :::> ~ a !!? a fl ft. ft. ft/s min min In/Hr cfs In/Hr cf s 1.6 400.0 2.0 1.1 8.5 8.5 6.77 6.9 8.2 8.3 1.5 800.0 5.0 1.3 11.7 11.7 5.88 17.8 7.2 21.7 3.0 450.0 3.0 1.2 10.0 10.0 6.32 5.6 7.7 6.8 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 2.0 1.0 1.0 0.7 4.7 5.0 8.22 2.4 9.9 2.9 2.0 450.0 3.0 1.2 9.4 9.4 6.51 6.1 7.9 7.4 1.4 450.0 3.0 1.2 7.9 7.9 6.98 5.1 8.4 6.1 2.0 1.0 1.0 0.7 4.7 5.0 8.22 1.7 9.9 2.1 2.0 440.0 3.0 1.2 8.5 8.5 6.78 5.5 8.2 6.7 3.0 440.0 3.0 1.1 10.9 10.9 6.09 4.6 7.4 5.6 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 6.0 100.0 0.5 0.8 15.0 15.0 5.19 5.6 6.4 6.9 1.5 450.0 3.0 1.2 8.5 8.5 6.77 4.4 8.2 5.3 2.0 450.0 3.0 1.2 8.7 8.7 6.73 4.5 8.2 5.4 7.0 100.0 0.5 0.8 17.7 17.7 4.75 5.4 5.9 6.7 3.0 450.0 2.5 1.0 12.2 12.2 5.77 4.0 7.1 4.9 3.0 450.0 2.5 1.0 12.2 12.2 5.77 4.8 7.1 5.8 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 6.0 100.0 0.5 0.8 15.9 15.9 5.04 5.5 6.2 6.8 1.0 470.0 10.0 1.9 5.1 5.1 8.19 4.7 9.8 5.6 3.0 200.0 4.0 1.1 6.9 6.9 7.37 7.7 8.9 9.2 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 0.7 100.0 0.7 1.1 2.7 5.0 8.22 3.3 9.9 3.9 2.0 1.0 1.0 0.9 2.2 5.0 8.22 1.2 9.9 1.5 2.0 550.0 4.0 1.5 7.1 7.1 7.29 4.7 8.8 5.6 2.0 250.0 1.5 1.0 7.4 7.4 7.16 12.7 8.6 15.3 4.0 300.0 1.5 0.9 13.0 13.0 5.59 5.2 6.8 6.4 0 It) 0 ..-It) a !: a ~ In/Hr cf s In/Hr cfs 9.2 9.3 10.5 10.6 8.1 24.4 9.2 27.9 8.6 7.6 9.9 8.7 11.0 0.0 12.5 0.0 11.0 3.2 12.5 3.7 8.9 8.4 10.1 9.5 9.4 6.9 10.8 7.8 11.0 2.3 12.5 2.6 9.2 7.5 10.5 8.5 8.3 6.3 9.5 7.2 11.0 0.0 12.5 0.0 7.2 7.8 8.2 8.9 9.2 5.9 10.5 6.8 9.1 6.1 10.4 7.0 6.6 7.6 7.6 8.7 7.9 5.6 9.1 6.4 7.9 6.6 9.1 7.5 11.0 0.0 12.5 0.0 7.0 7.7 8.0 8.8 10.9 6.3 12.5 7.1 9.9 10.3 11.3 11.8 11.0 0.0 12.5 0.0 11.0 4.4 12.5 5.0 11.0 1.6 12.5 1.9 9.8 6.3 11.2 7.2 9.7 17.2 11.0 19.6 7.7 7.2 8.8 8.2 ~ ~ a In/Hr cfs 11.9 12.0 10.4 31.6 11.1 9.8 14.1 0.0 14.1 4.1 11.4 10.8 12.2 8.9 14.1 3.0 11.9 9.6 10.8 8.2 14.1 0.0 9.3 10.1 11.9 7.6 11.8 7.9 8.6 9.9 10.3 7.2 10.3 8.5 14.1 0.0 9.1 9.9 14.0 8.1 12.8 13.3 14.1 0.0 14.1 5.6 14.1 2.1 12.7 8.1 12.5 22.1 10.0 9.3 0 0 0 0 ..-!: a In/Hr cfs 13.3 13.5 11.7 35.5 12.5 11.0 15.8 0.0 15.8 4.6 12.9 12.1 13.7 9.9 15.8 3.3 13.3 10.8 12.1 9.2 15.8 0.0 10.5 11.3 13.3 8.6 13.2 8.8 9.7 11.1 11.6 8.1 11.6 9.5 15.8 0.0 10.2 11.2 15.7 9.0 14.3 14.9 15.8 0.0 15.8 6.3 15.8 2.4 14.2 9.1 14.0 24.8 11.2 10.4 5'2.8/97 vralldra.xls Exhibit C-1 : <( ~ w c a: w ..J ..J <( <( c.. <( ~ u.. w w 0 j::: c (!) a: ..J a: <( z <( w z <( (.) 5 l: <( w ..J > ..J z <( ~~ c ~ ~ a: I-~ u; w (!) I-0 >z 0 z a:: ~ 0 c I-::::> <( ci I-o~ NO. AC. 0.4 0.55 0.95 ft 127.0 0.00 0.00 0.00 0.00 0.00 1.0 127.1 0.00 0.00 0.00 0.00 0.00 1.0 128.0 0.92 0.00 0.92 0.00 0.51 80.0 129.0 2.43 0.00 2.43 0.00 1.34 170.0 130.0 1.67 0.00 1.67 0.00 0.92 325.0 131.0 0.00 0.00 0.00 0.00 0.00 1.0 133.0 1.72 0.00 1.72 0.00 0.95 178.0 134.0 1.91 0.00 1.91 0.00 1.05 156.0 134.1 1.31 0.00 1.31 0.00 0.72 239.0 136.0 1.50 0.00 1.50 0.00 0.83 370.0 135A 1.12 0.00 1.12 0.00 0.62 316.0 1358 0.48 0.00 0.48 0.00 0.27 100.0 137.0 0.00 0.00 0.00 0.00 0.00 1.0 138.2 1.20 0.00 1.20 0.00 0.66 200.0 138.4 1.30 0.00 1.30 0.00 0.72 200.0 139.0 1.54 0.00 1.54 0.00 0.85 330.0 140.0 1.64 0.00 1.64 0.00 0.90 90.0 141.0 1.90 0.00 1.90 0.00 1.05 100.0 142.0 2.22 0.00 2.22 0.00 1.22 60.0 143.0 0.00 0.00 0.00 0.00 0.00 1.0 144.0 1.38 0.00 0.38 1.00 1.16 50.0 145.0 0.00 0.00 0.00 0.00 0.00 1.0 151.0 1.96 0.00 1.96 0.00 1.08 180.0 152.0 1.09 0.00 1.09 0.00 0.60 65.0 153.0 1.90 0.00 1.90 0.00 1.05 240.0 154.0 0.90 0.00 0.90 0.00 0.50 50.0 155A 1.63 0.00 1.63 0.00 0.90 220.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Edelweiss Estates, Phases 1 Through 6 ;: 0 ;: ;: ..J u.. 0 0 c ..J ..J z u.. u.. ~ 5 a: l: a: u u w I-w I-u a:: ..J ~ (!) ~ ..J 0 I-.!:i w ..J ::::> z ::::> ..J ..J w > <( w ca CJ) a 11) 0 u.. (!) ~ (!) ~ > (.) ::::> ~ ~ a ft ft ft ft/s min min In/Hr cfs In/Hr cfs 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 1.0 450.0 5.0 1.7 5.3 5.3 8.08 4.1 9.7 4.9 2.0 550.0 6.0 1.5 8.1 8.1 6.91 9.2 8.4 11.2 5.0 130.0 0.7 1.0 7.7 7.7 7.07 6.5 8.5 7.9 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 1.8 380.0 6.3 1.4 6.7 6.7 7.47 7.1 9.0 8.5 1.5 600.0 10.0 1.6 7.7 7.7 7.08 7.4 8.6 9.0 1.8 360.0 1.8 0.9 10.8 10.8 6.11 4.4 7.4 5.4 2.8 356.0 1.8 0.8 14.3 14.3 5.33 4.4 6.5 5.4 3.0 55.0 0.3 0.7 8.3 8.3 6.86 4.2 8.3 5.1 1.0 124.0 0.6 1.0 3.9 5.0 8.22 2.2 9.9 2.6 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 2.0 330.0 1.5 1.0 8.8 8.8 6.68 4.4 8.1 5.3 2.0 330.0 1.5 1.0 8.8 8.8 6.68 4.8 8.1 5.8 4.0 170.0 1.0 0.9 8.9 8.9 6.65 5.6 8.1 6.8 0.9 850.0 4.3 1.3 12.2 12.2 5.77 5.2 7.0 6.4 1.0 400.0 2.0 1.2 7.1 7.1 7.28 7.6 8.8 9.2 0.6 500.0 2.5 1.3 7.4 7.4 7.19 8.8 8.7 10.6 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 0.5 350.0 2.0 1.3 5.1 5.1 8.18 9.5 9.8 11.4 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 2.0 650.0 3.3 1.2 11.7 11.7 5.88 6.3 7.2 7.7 0.7 540.0 2.7 1.3 7.9 7.9 6.99 4.2 8.5 5.1 4.0 370.0 1.9 1.2 8.7 8.7 6.71 7.0 8.1 8.5 0.5 400.0 2.0 1.3 5.9 5.9 7.77 3.9 9.3 4.6 2.2 260.0 1.3 1.0 8.3 8.3 6.86 6.2 8.3 7.5 0 11) 0 .... 11) N !: a ~ a In/Hr cf s In/Hr cfs 11.0 0.0 12.5 0.0 11.0 0.0 12.5 0.0 10.8 5.5 12.3 6.2 9.4 12.5 10.7 14.3 9.6 8.8 10.9 10.0 11.0 0.0 12.5 0.0 10.1 9.5 11.5 10.9 9.6 10.1 10.9 11.5 8.4 6.0 9.6 6.9 7.4 6.1 8.4 7.0 9.3 5.7 10.6 6.6 11.0 2.9 12.5 3.3 11.0 0.0 12.5 0.0 9.1 6.0 10.4 6.8 9.1 6.5 10.4 7.4 9.0 7.7 10.3 8.7 7.9 7.2 9.1 8.2 9.8 10.3 11.2 11.7 9.7 11.9 11.1 13.5 11.0 0.0 12.5 0.0 10.9 12.7 12.5 14.4 11.0 0.0 12.5 0.0 8.1 8.7 9.2 10.0 9.5 5.7 10.8 6.5 9.1 9.5 10.4 10.9 10.4 5.2 11.9 5.9 9.3 8.4 10.6 9.5 5il § a In/Hr cfs 14.1 0.0 14.1 0.0 13.9 7.0 12.1 16.1 12.3 11.3 14.1 0.0 12.9 12.3 12.3 13.0 10.8 7.8 9.5 7.9 12.0 7.4 14.1 3.7 14.1 0.0 11.7 7.7 11.7 8.4 11.7 9.9 10.3 9.3 12.6 13.2 12.5 15.3 14.1 0.0 14.0 16.3 14.1 0.0 10.4 11.3 12.2 7.3 11.8 12.3 13.4 6.7 12.0 10.8 0 g 0 .... !: a In/Hr cfs 15.8 0.0 15.8 0.0 15.5 7.9 13.5 18.1 13.8 12.7 15.8 0.0 14.5 13.7 13.8 14.5 12.2 8.8 10.8 8.9 13.5 8.3 15.8 4.2 15.8 0.0 13.1 8.7 13.1 9.4 13.1 11.1 11.5 10.4 14.2 14.8 14.0 17.1 15.8 0.0 15.7 18.2 15.8 0.0 11.7 12.7 13.7 8.2 13.2 13.8 15.0 7.5 13.5 12.1 5128/97 vralldra.xls Exhibit C-1 .. <t ~ w c IX w ..J ..J <t ~ Q. <t ~ LI. 0 c UJ IX i= IX <t z (!) ..J <t UJ z <t (.) 5 :r: <t w z ..J [ij <t c s= ..J IX I- ~ <t c;; <t UJ (!) I-cw d I->z 0 Z IX UJ 0 c I-:::> <t IX a: I-o~ NO. AC. 0.4 0.55 0.95 ft 1558 2 .13 0 .00 2 .13 0 .00 1.17 230.0 156 .0 0 .88 0 .00 0 .88 0 .00 0.49 110 .0 158 .0 0 .00 0 .00 0 .00 0 .00 0.00 1.0 159 .0 0 .45 0 .00 0.45 0 .00 0 .25 60.0 160 .0 0 .85 0 .00 0 .85 0 .00 0 .47 30 .0 161 .0 1.71 0 .00 1.71 0 .00 0 .94 200 .0 162 .0 0 .86 0 .00 0 .86 0 .00 0 .47 90 .0 163 .0 8 .53 0 .00 8.53 0.00 4 .69 750 .0 164 .0 0 .00 0 .00 0.00 0 .00 0 .00 1.0 170 .0 2 .18 1.74 0 .00 0.44 1.11 135.0 171 .0 0 .89 0.45 0 .00 0.44 0 .60 327 .0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Edelweiss Estates, Phases 1 Through 6 3:: 0 3:: 3:: ..J LI. 0 0 c ..J ..J z LI. LI. > 5 IX :r: IX I- (3 u UJ I-UJ I-~ IX ..J I= (!) I= ..J 0 ~ w ..J :::> z :::> ..J ..J UJ ~~ UJ "' en N It) (!) ~ (!) ~ > (.) :::> £:! a !!? a ft ft ft ft/s min min In/Hr cf s In/Hr cf s 2 .3 630 .0 3 .5 1.1 12 .5 12 .5 5 .69 6 .7 7 .0 8 .2 1.1 290 .0 1.5 1.1 6 .0 6 .0 7 .75 3 .8 9 .3 4 .5 1.0 1.0 1.0 10 .4 0 .0 5 .0 8 .22 0 .0 9 .9 0 .0 0.6 175 .0 1.0 1.2 3 .4 5 .0 8 .22 2 .0 9 .9 2 .5 0 .3 820 .0 5 .0 1 .5 9 .5 9 .5 6 .46 3 .0 7 .8 3 .7 3 .0 1.0 1.0 0 .9 3 .9 5 .0 8 .22 7 .7 9 .9 9 .3 0 .9 450.0 2 .3 1.2 7 .4 7.4 7 .17 3.4 8 .7 4 .1 8 .0 1.0 1.0 0 .7 17 .1 17 .1 4 .83 22 .7 6 .0 28 .0 1.0 1.0 1.0 10.4 0 .0 5 .0 8 .22 0 .0 9 .9 0 .0 2 .0 500 .0 3 .0 1.3 8 .0 8 .0 6 .94 7 .7 8 .4 9.4 2 .0 1.0 1.0 0 .6 9 .9 9 .9 6 .37 3 .8 7 .7 4 .6 0 0 .... It) It) N ~ a £:! a In/Hr cfs In/Hr cfs 7 .8 9 .2 9 .0 10.5 10.4 5 .0 11 .9 5 .8 11 .0 0 .0 12 .5 0 .0 11 .0 2 .7 12 .5 3 .1 8 .8 4 .1 10 .0 4 .7 11 .0 10 .3 12 .5 11 .8 9 .7 4 .6 11 .0 5.2 6.7 31 .6 7 .7 36 .2 11 .0 0.0 12 .5 0 .0 9 .4 10 .5 10 .7 12 .0 8.7 5.2 9 .9 5 .9 ~ ~ a In/Hr cf s 10 .1 11 .9 13 .4 6 .5 14 .1 0 .0 14 .1 3 .5 11.4 5 .3 14 .1 13 .3 12 .5 5 .9 8.7 41 .0 14.1 0 .0 12 .1 13 .5 11 .2 6 .7 0 0 0 0 .... ~ a In/Hr cfs 11 .4 13 .4 15.0 7 .3 15 .8 0 .0 15.8 3 .9 12 .8 6 .0 15 .8 14 .9 14 .0 6 .6 9 .9 46 .3 15 .8 0 .0 13 .6 15 .1 12 .6 7 .5 5f2.8/97 vralldra .xls Exh ibit C-1 ~ -= "' . .... < ~ ~ ~ < .... ~ ~ ~ t = < 0 00 .... ~ ~ .:: 00 -"C ,c ~ c' --·:; ~ O" Cl. ~ 0 ~00 EXHIBIT C-2 INLET COMPUTATIONS Edelweiss Estates, Phases 1 Through 6 Q z .... ~ ~ = ~ 0 DESCRIPTION ~ ~ -~ ~ ~ ~ O" ~ -= I . .... ~ "C Cl. r'3 ~ ~ "C = ·~ 1 -"C ~ = -~ ~ ~I~ ~ ~ "C t ·:; O" ~ ell ~ -< 1 "C ·~ -~ ~ t < cfs I I I I I I I I I Curb Inlet I Grate Inlet cfs I ft I ft ft I cfs I sq-ftl sq-ft 60A I 3.5 I 39 0.4% NIA 60B 111.91 66 2.0% 60 115.4 65A I 3.9 I 39 0.5% NIA 65B I 6.1 I 66 0.5% 65 110.1 70 I 6.3 I 66 0.6% 70 I 6.3 75 I 3.7 I 66 0.2% 75 I 3.7 80 124.31 39 18.5% 80 124.3 81 I 8.6 I 39 2.3% 8I I 8.6 82A I 4.0 I 28 0.2% NIA 82B I 6.2 I 28 0.6% 82 110.2 83 I 7.I I 28 0.7% 83 I 7.1 84A I 1.3 I 28 0.0% NIA 84B I 3.8 I 28 0.2% 84 I 5.1 85 I 5.3 I 28 0.4% 85 I 5.3 86 I 0.0 I 28 0.0% 86 I 0.0 87A I 6.8 I 28 0.7% NIA 87B I 6.9 I 28 0.7% 87 113.6 88 I 8.0 I 28 0.9% 88 I 8.0 89A I 6.0 I 281 0.5% I I NIA 89B I 4.0 I 28 0.2% 89 I IO.O 90 I 5.8 I 28 0.5% 90 I 5.8 9I I 0.0 I O 9I I 0.0 92 124.31 0 92 124.3 100 I 8.8 I O IOO I 8.8 IOI 124.41 28 8.8% lOI 124.4 102 I 8.7 I 28 1.1% 102 I 8.7 I03 I 4.3 I 28 0.3% 103 I 4.3 I04 I 2.2 I 28 O.I% 104 I 2.2 105 I 9.3 I 28 1.3% 105 I 9.3 I06 124.41 0 106 124.4 107 I 7.6 I o 107 I 7.6 108 I o.o I o 108 I 0.0 109A I 3.2 I 28 0.2% NIA 109B I 8.4 I 28 1.0% 109 I Il.6 110 I 6.9 I 28 0.7% 110 I 6.9 IllA I 2.3 I 28 0.1% NIA lllB I 7.5 I 28 0.8% llI I 9.8 Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet JUNCTION BOX Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet JUNCTION BOX DITCH LINE SLOPED HEADWALL Recessed Low Point Inlet Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet PROPOSED GRATE INLET PROPOSED GRATE INLET JUNCTION Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet 2.331 6.62 10 2.33 I 4.31 I 5 2.33 I 2.68 I 5 2.33 I 1.57 I 5 0.64 I 38.10 I 15 0.64113.451 I5 2.33 I 4.37 I 5 2.33 I 3.03 I 5 2.331 2.17 I 5 2.33 I 2.28 I 5 2.33 I 5.84 I IO 2.33 I 3.42 I 5 2.33 I 4.26 I 5 2.33 I 2.47 I 5 2.33110.471 I5 0.64113.691 I5 0.641 6.82 I IO 0.641 3.43 I 5 2.33 I 3.99 I 5 2.33 I 4.96 I 5 2.33 I 2.94 I 5 2.33 I 4.I8 I 5 I I 2.8I I 8.70 I 2.5 I I 2.8I I 2.71 I 2.5 5128/97 vralldra.xls Exhibit C-2 EXHIBIT C-2 INLET COMPUTATIONS Edelweiss Estates, Phases 1 Through 6 c:) z DESCRIPTION Curb Inlet Grate Inlet 1------~-1-~-+---1~~~-1--+~--lf---+~~~~~~~~~~-f-~-.-~-,-~-1-~ cfs 112 6 .3 28 0 .6% 112 6 .3 113 0 .0 0 113 0 .0 114A 7 .8 28 0 .9% NIA 114B 5.9 28 0 .5% 114 13 .7 115 6 .1 28 0 .5% 115 6 .1 116A 7 .6 28 0 .8% NIA 116B 5.6 28 0 .5% 116 13 .1 117 6 .6 28 0 .6% 117 6.6 118 0 .0 0 118 0.0 120A 7 .7 28 0 .9% NIA 120B 6 .3 28 0.6% 120 13 .9 121 10.3 28 1.6% 121 10 .3 122 0 .0 0 122 0.0 123 4 .4 28 0 .3% 123 4.4 124 1.6 39 0 .1% 124 1.6 125A 6.3 39 1.2% NIA 125B 17 .2 28 4.3% 125 23 .4 126 7.2 28 0 .8% 126 7 .2 127 0 .0 0 127 0 .0 127 .1 0 .0 0 127 .1 0.0 128 5.5 28 0 .4% 128 5.5 129 12.5 28 2 .3% 129 12 .5 130 8.8 39 2 .4% 130 8.8 131 0 .0 0 131 0.0 133 9.5 28 1.3% 133 9.5 134 10 .l 28 1.5% 134 10.1 134 .1 6 .0 28 0.5% 134.1 6 .0 136 6 .1 28 0.5% 136 6.1 135A 5.7 28 0.5% 135B 2.9 39 0.3% 135 8.7 137 0 .0 0 137 0.0 138 .2 6 .0 28 0.5% 138.2 6 .0 138 .4 6.5 28 0 .6% 138 .4 6.5 139 7 .7 28 0 .9% 139 7.7 140 7.2 28 0 .8% 140 7 .2 141 10 .3 39 3.3% 141 10.3 142 11.9 39 4 .4% 142 11.9 Recessed Low Point Inlet JUNCTION Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet JUNCTION Recessed Low Point Inlet Recessed Low Point Inlet JUNCTION Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet JUNCTION JUNCTION Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade JUNCTION Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet JUNCTION Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet Recessed Low Point Inlet cfs ft ft ft cfs sq-ft sq-ft 2.33 2.72 5 2.33 5.87 10 2.33 2.61 5 2 .33 5.63 10 2 .33 2.81 5 2.33 5 .97 10 2.33 4.43 5 2 .33 1.87 5 2 .33 0 .70 5 2.33 10 .04 15 2 .33 3.07 5 2.33 2.35 5 2.33 5.37 10 0.64 13 .81 15 2.33 4.08 5 2 .33 4 .31 5 2.33 2 .59 5 2 .33 2 .61 5 2 .33 3.71 5 0 .64 9.39 10 0 .64 10.18 15 2 .33 3.28 5 2 .33 3.07 5 2 .33 4 .40 5 2 .33 5.08 10 5/28/97 vralldra .xls Exhibit C-2 .... ~ ~ .c -~ .... .... ~ . "C:I VJ <o ·--~z ~ ~~ --~< .... ·-~ ~ = Q. =~ Q -O"' 0 .-4 .... ~-0 VJ ~VJ cfs 143 0.0 0 144 12.7 39 5.0% 145 0.0 0 151 8.7 28 1.1% 152 5.7 28 0.5% 153 9.5 28 1.3% 154 5.2 28 0.4% 155A 8.4 28 1.0% 155B 9.2 28 1.2% 156 5.0 28 0.4% 158 0.0 28 0.0% 159 2.7 28 0.1% 160 4.1 28 0.3% 161 10.3 28 1.6% 162 4.6 28 0.3% 163 31.6 0 164 0.0 28 0.0% 170 10.5 66 1.6% 171 5.2 66 0.4% EXHIBIT C-2 INLET COMPUTATIONS Edelweiss Estates, Phases 1 Through 6 ~ ~ -c:) ~ ~ z .... ~ ~ Q < :5 .-4 DESCRIPTION 0 u "C:I ~ "C:I ~ ·-> O"' 0 ~ -~ ~ ~ ~ Curb Inlet cfs ft ft 143 0.0 JUNCTION 144 12.7 Recessed Low Point Inlet 2.33 5.43 10 145 0.0 JUNCTION 151 8.7 Recessed Inlet on Grade 0.64 13.67 15 152 5.7 Recessed Inlet on Grade 0.64 8.92 10 153 9.5 Recessed Inlet on Grade 0.64 14.96 15 154 5.2 Recessed Inlet on Grade 0.64 8.12 10 155 17.5 Recessed Low Point Inlet 2.33 7.51 10 156 5.0 Recessed Low Point Inlet 2.33 2.16 5 158 0.0 JUNCTION BOX 159 2.7 Recessed Inlet on Grade 0.64 4.29 5 160 4.1 Recessed Inlet on Grade 0.64 6.47 10 161 10.3 Recessed Low Point Inlet 2.33 4.43 5 162 4.6 Recessed Low Point Inlet 2.33 1.97 5 163 31.6 Recessed Inlet on Grade 0.64 49.57 15 164 0.0 Recessed Inlet on Grade 0.64 0.03 5 170 10.5 SLOPED HEADWALL 171 5.2 DITCH LINE .c .... Q. ~ = "C:I ~ "C:I = 0 ~ ft "C:I "C:I ~ ~ ~ 00 -"C:I ·-= ·--O"' > ~ ~ 0 ~ -~ ~ = = < ~ ~ --u < < Grate Inlet cfs sq-ft sq-ft 5/28/97 vralldra.xls Exhibit C-2 0 < ~ u z g ~ ~ ~ ~ 0 0 ~ ~ ~ # # Ac. 60A 608 0 .4 608 658 1 .8 65A 658 0 .4 658 75 2 .8 70 75 0.7 75 81 3 .9 80 81 3 .4 81 86 8 .3 82A 828 0 .5 828 83 1.1 83 86 1 .9 84A 848 0 .1 848 85 0 .5 85 86 1 .0 86 91 11 .2 87A 878 0 .8 878 88 1 .6 88 91 2 .5 89A 898 0 .7 898 90 1 .0 90 91 1 .6 91 108 15 .2 92 100 4 .0 100 108 4 .9 10 1 HW 3 .0 102 103 1 .0 103 104 1 .4 104 105 1.6 105 106 2 .7 106 107 5 .7 107 108 6 .6 108 113 26.7 109A 1098 0.3 1098 110 1 .2 110 113 2 .0 111A 1118 0 .2 EXHI B IT C-3 PIPE SIZE CALCULATIONS Edelweiss Estates, Phases 1 Through 6 = Ci) ·-Qi « fll « ~ e Q ·-~ ~ fll c. c. ~ I. "C ~ fll ·-e e ~ ~ ~ ---"C c. I. 00 00 fll ·-~ ~ = = ~ ~ = -e ..... fll « ~ Ci) "C ~ e ... ~ .:, ~ ~ -... y fll = e -c e c:> e ·-~ y ~ = -< ii; -I. ~ Q ~~ z ~ ~ 00 min yr cfs cfs # cfs % " 9.4 10 3.5 3.5 1 3 .5 0 .01 27 9.9 10 15.4 15 .4 1 15 .4 . 0 .28 27 5 .0 10 3 .9 3 .9 1 3 .9 0 .01 30 10 .1 10 23.9 23 .9 1 23 .9 0 .39 30 10 .2 10 6 .3 7 .8 1 7 .8 0 .64 18 10 .5 10 32 .5 32 .5 1 32.5 1 .27 27 15 .6 10 24 .3 24 .3 1 24 .3 0 .71 27 15.7 10 58 .6 58 .6 1 58 .6 1.41 33 10.6 10 4 .0 4 .9 1 4 .9 0 .35 17 10.6 10 9.6 12 .0 1 12 .0 0 .66 21 10 .7 10 15 .8 19 .8 1 19 .8 0.88 24 5 .0 10 1.3 1 .6 1 1 .6 0 .04 17 5 .5 10 5 .0 6 .2 1 6 .2 0 .40 18 5 .7 10 10 .1 12 .6 1 12 .6 0 .73 21 16 .1 10 77 .7 77 .7 1 77 .7 0 .69 42 11.8 10 6 .8 8 .5 1 8 .5 1 .02 17 11 .8 10 13 .2 16 .5 1 16 .5 1 .25 21 11 .9 10 20.0 20 .0 1 20.0 0.48 27 9.0 10 6 .0 7.5 1 7 .5 0.80 17 9 .0 10 9 .3 11 .6 1 1 1 .6 0 .62 21 9 .1 10 14 .1 17 .6 1 17.6 0 .70 24 16 .7 10 104.1 104 .1 1 104 .1 0 .61 48 21 .2 10 24 .3 24 .3 1 24 .3 0 .10 39 24 .6 10 26.9 33.6 1 33.6 2 .54 24 11 .7 10 24.4 30.5 1 30 .5 2 .10 24 9 .5 10 8 .7 10 .9 1 10 .9 0.55 21 9 .7 10 12.7 15 .9 1 15 .9 0 .57 24 10 .6 10 13 .9 17 .4 1 17 .4 0 .68 24 10 .8 10 22.3 22 .3 1 22.3 0 .60 27 11.7 10 45 .9 45 .9 1 45.9 0 .87 33 12.6 10 51 .2 51 .2 1 5 1.2 0 .68 36 24.7 10 147 .4 147 .4 1 147 .4 0 .51 BOX 5 .0 10 3 .2 4 .0 1 4 .0 0 .23 17 9 .4 10 11 .0 13.7 1 13 .7 0 .86 21 9 .4 10 17 .3 21 .7 1 21 .7 1 .06 24 5 .0 10 2 .3 2 .9 1 2 .9 0 .12 17 *Includes 25% Flow Increase for pipe siz es < 27 " dia . * * See Pl an & Profile for p ip e slope used (Pipe slope >or = Friction slope) = ~ "" ;.J z ~ ~ ~ fps ' 0 .9 1 3.9 42 0.8 1 4 .9 120 4 .4 42 8 .2 360 6 .1 42 9 .9 180 3 .1 1 5 .0 31 6 .3 70 1.0 31 3 .5 31 5 .2 30 8 .1 290 5 .4 1 6 .9 32 5 .0 80 4 .8 1 4 .8 31 5 .6 35 8 .3 110 2 .9 600 10 .7 40 9 .7 140 4 .5 31 5 .0 280 5 .5 70 5 .6 120 7 .7 430 7 .2 40 9 .2 174 2 .5 1 5 .7 31 6 .9 45 1 .8 1 ~ e ·-~ -~ "" = I. ~ min 0 .02 0 .18 0 .02 0 .41 0 .16 0 .73 0 .11 0 .30 0 .01 0 .10 0.19 0 .51 0 .15 0 .10 0 .60 0 .00 0 .08 0 .27 0 .00 0 .11 0 .10 0 .22 3 .41 0 .06 0 .24 0 .11 0 .92 0 .21 0 .36 0 .93 0 .09 0 .31 0 .0 1 0 .09 0 .11 0 .01 "C = ~ ~ @ 9 y ~ ~ min ' 9 .45 10.11 5 .02 10.52 10 .39 11 .26 15 .75 16.05 10 .58 10 .68 10 .87 5 .51 5 .66 5 .75 16.65 11 .80 11 .87 12 .14 9 .02 9 .12 9 .23 16 .87 24.64 24 .70 11 .95 9.65 10 .57 10.79 11.14 12.64 12.73 25 .01 4 5 .01 9 .45 9 .56 5.01 5/28/97 v ralldra .xls Exhibit C-3 i ' 4 0 < ~ u z r-1 ~ g ~ < r-1 ~ ~ 0 0 ~ ~ ~ # # Ac. 111B 112 1.0 112 113 1 .8 113 118 30.4 114A 114B 1.1 114B 115 1 .7 115 118 2 .4 116A 116B 1.1 116B 117 1 .8 117 118 2.7 118 122 35 .5 120A 120B 1 .1 120B 121 1 .7 121 122 2.7 122 127 38 .2 123 124 0 .4 124 127 0.5 125A 125B 0 .6 125B 126 2.4 126 127.1 3 .3 127 127 .1 38.7 127.1 131 42.1 128 129 0.5 129 130 1.8 130 131 2.8 131 137 44 .8 133 134 0 .9 134 134.1 2 .0 134.1 135B 2 .7 136 135B 0 .8 135A 135B 0 .6 135B 137 4 .4 137 143 49 .3 138 .2 138.4 0 .7 138.4 139 1.4 139 140 2 .2 140 141 3.1 EXHIBITC-3 PIPE SIZE CALCULATIONS Edelweiss Estates, Phases 1 Through 6 = ~ ·-= « I'll Q,j ~ « e ~ ·-Q,j Q,j I'll Q. Q. ... "C Q,j I'll ·-Q Q Q,j ~ Q,j ~ ---"Cl Q. ... 00 00 I'll ·-= Q,j ~ Q,j = = ._, -'-" ~ Q ~ I'll « ·-"Cl ~ .~ ~ Q ~ -r-1 ·-y I'll t'C Q "C Q e Q ·-~ y Q,j =-<~ -... ~ ~ ;;;:>~ z ~ ~ 00 min yr cfs cfs # cfs % " 8.5 10 9.4 11 .7 1 11.7 0.63 21 10.9 10 14 .8 18.6 1 18.6 1.58 21 25.0 10 166.9 166 .9 1 166.9 0.65 BOX 15.0 10 7.8 9.7 1 9.7 1.34 17 15 .0 10 12.4 15.5 1 15 .5 1.10 21 15 .1 10 17.2 21.5 1 21 .5 1 .04 24 17.7 10 7 .6 9.5 1 9 .5 1.27 17 17.7 10 12 .2 15.3 1 15.3 1.07 21 17.8 10 17.6 22.1 1 22.1 1.10 24 25 .5 10 192.5 192.5 1 192 .5 0 .46 BOX 15 .9 10 7.7 9.6 1 9.6 1.30 17 15.9 10 11.7 14 .6 1 14.6 0.48 24 16.0 10 18.9 23.6 1 23.6 1.26 24 26.0 10 205.0 205.0 1 205.0 0.52 BOX 5.0 10 4.4 5.5 1 5.5 0 .31 18 5 .6 10 5.8 7.3 1 7.3 0 .55 18 7 .1 10 6.3 7 .9 1 7.9 0.88 17 7.4 10 23.3 29.2 1 29.2 1.92 24 13.0 10 25.7 25.7 1 25 .7 0 .80 27 26.3 10 206.7 206 .7 1 206 .7 0.32 BOX 26.5 10 223.3 223.3 1 223.3 0.37 BOX 5.3 10 5.5 6.9 1 6.9 0.49 18 8.1 10 17.3 21.6 1 21 .6 1 .05 24 8.4 10 25.5 25 .5 1 25.5 0 .78 27 26 .9 10 236 .1 236.1 1 236.1 0 .42 BOX 6.7 10 9 .5 11.9 1 11 .9 0.65 21 7 .7 10 19 .1 19 .1 1 19.1 0.44 27 10.8 10 22 .8 22.8 1 22 .8 0.36 30 14 .3 10 6.1 7 .6 1 7 .6 0 .61 18 8.3 10 5.7 7 .2 1 7.2 3 .05 13 14.4 10 32.5 32 .5 1 32.5 0 .44 33 27.0 10 258.7 258 .7 1 258.7 0 .50 BOX 8.8 10 6.0 7 .5 1 7.5 0.59 18 9 .0 10 12.4 15 .5 1 15.5 0 .54 24 10 .0 10 19.2 19 .2 1 19.2 0.44 27 12.2 10 24 .8 24.8 1 24.8 0 .42 30 *Includes 25% Flow Increase for pipe sizes <27" dia . • • See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) Q,j e ~ ·-~ ~ -Q,j ~ z > ~ r-1 t'C ... ~ ~ fps I min 4 .9 31 0.11 7 .7 45 0 .10 10 .4 307 0 .49 6 .2 1 0.00 6.4 31 0.08 6.8 45 0 .11 6.0 1 0.00 6 .3 31 0.08 7.0 45 0.11 9.6 278 0.48 6.1 1 0.00 4.6 31 0.11 7.5 45 0.10 10 .3 172 0 .28 3.1 115 0.62 4.1 20 0 .08 5 .0 1 0.00 9.3 31 0 .06 6 .5 45 0 .12 8.6 130 0.25 9 .3 207 0.37 3 .9 45 0.19 6 .9 132 0.32 6 .4 20 0.05 9 .8 70 0.12 4.9 31 0.10 4.8 330 1.14 4.6 255 0 .92 4.3 31 0.12 7 .8 13 0.03 5.5 13 0.04 10.8 515 0.80 4.2 34 0.13 4 .9 290 0.98 4 .8 63 0 .22 5.0 217 0 .72 "Cl ~ = r-1 ~ ~ @ 9 53 y ~ ~ min I I 8.62 10.96 25.50 4 4 14.99 15.07 15.18 17 .70 17 .78 17.89 25 .99 5 4 15.88 15.99 16.09 26.26 5 4 5.62 5.70 7 .10 7.49 13.12 26.52 6 4 26.89 6 4 5.47 8.45 8 .50 27 .01 6 4 6 .76 8 .81 11 .70 14.39 8 .30 14 .43 27.80 6 4 8.97 9.95 10.17 12.90 5/28/97 vralldra .xls Exhibit C-3 • 0 < ~ u z ~ ~ ~ ~ ~ g 0 0 ~ ~ # # Ac. 141 143 4 .2 142 143 1.2 143 145 54 .7 144 145 1 .2 145 HW 55.8 151 152 1 .1 152 153 1.7 153 154 2 .7 154 156 3 .2 155A 155B 0 .9 155B 156 2 .1 156 158 5.8 158 159 5 .8 159 164 6 .5 160 159 0 .5 161 162 0 .9 162 164 1.4 163 164 4 .7 164 HW 12 .6 170 171 1 .1 171 HW 1 .7 EXHIBIT C-3 PIPE SIZE CALCULATIONS Edelweiss Estates, Phases 1 Through 6 = C)() .... = « ~ ~ C)() « e ~ ·;; ~ ~ c. c. i.. ~ ~ .... Q 'C ~ Q,j ~ Q ~ -... ... 'C c. ... 00. 00. ~ .... = ~ ~ ~ = = . ..., ... c... ~ Q C)() 'C :r; ~ « Q .... ~ .:.. :r; :r; ... .... r,J ~ ~ Q 'C Q ~ Q .... s:= r,J Q,j =-< ;; -... ~ ~ l=l ~ z ~ ~ 00. min yr cfs cfs # cfs % " 12 .9 10 32.2 32.2 1 32.2 0 .71 30 7 .4 10 11.9 14.8 1 14 .8 1.01 21 27 .8 10 282 .3 282 .3 1 282 .3 0.39 BOX 5 .1 10 12 .7 15 .8 1 15.8 2.62 18 27 .9 10 287.5 287 .5 1 287.5 0.40 BOX 11 .7 10 8 .7 10 .9 1 10 .9 1.24 18 11.8 10 13 .5 16 .9 1 16 .9 1 .31 21 12.4 10 21 .4 26.8 1 26 .8 1 .62 24 12.5 10 25 .3 25.3 1 25 .3 0 .77 27 8 .3 10 8 .4 10.4 1 10 .4 1.54 17 12 .5 10 16 .2 20 .3 1 20 .3 0 .92 24 13 .3 10 44.0 44 .0 1 44 .0 1 .33 30 13.3 10 44 .0 44 .0 1 44 .0 1 .32 30 13 .9 10 48.5 48 .5 1 48 .5 1 .61 30 9 .5 10 4.1 5 .2 1 5 .2 0.28 18 5 .0 10 10 .3 12 .9 1 12 .9 0 .38 24 7 .4 10 13 .7 13.7 1 13 .7 0 .23 27 17.1 10 31 .6 31 .6 1 31 .6 1 .20 27 17.2 10 84 .7 84 .7 1 84 .7 1 .86 36 8.0 25 12 .0 12 .0 1 12 .0 0 .17 27 9 .9 10 14 .9 18 .6 1 18 .6 4 .90 17 *Includes 25 % Fl ow Increase for pipe sizes < 27 " d ia . * * See Pl an & Profile fo r pi pe slope used (Pipe slope >or = Fri c ti on slope) e: "' ~ z ~ ~ fps t 6.6 20 6 .2 20 10 .1 75 9.0 13 10 .3 32 6 .2 31 7 .0 265 8 .5 31 6 .4 310 6 .6 1 6 .4 3 1 9 .0 30 9 .0 295 9 .9 295 2 .9 42 4.1 31 3 .4 75 7.9 45 12 .0 260 3 .0 90 11 .8 1 ~ e .... ~ -Q,j > ~ ... ~ min 0.05 0 .05 0 .12 0 .02 0 .05 0.08 0 .63 0 .06 0.81 0 .00 0 .08 0 .06 0 .55 0 .50 0 .24 0 .13 0 .36 0 .09 0 .36 0.50 0 .00 'C = e: ~ @ 9 r,J ~ ~ min t 12 .95 7.42 27.93 7 5.10 27 .98 7 11 .79 12 .42 12.48 13 .29 8 .29 12.62 13.35 13 .90 14 .40 9 .79 5 .1 3 7 .78 17 .22 17 .58 8 .55 9.86 5/28/97 vralldra .xls Exhibit C-3 ~ t 4 4 .. Figure :Xtl ·. Development Permit City of College Station, Texas Site Legal Description: _ _:ED=EL=WE=I:!::S:!:S~E!:"'ST~'PJ.,...TE""""S~,~P~HAS ....... ""E.____...4~-B...._ ___________ _ Site Owner: BEGONIA CDRPORATION ~ Michael R. McClure, P.E. Engineer: McCLURE ENGINEERING, INC. Contractor: Young Contractors, Inc. Date Application Filed: ________ _ 1901 San Jacinto Address :Houston, TX 77002 Telephone: ( 713) 654-0060 1722 Broadmoor, Suite 210 Address:Bryan, TX 77802 Telephone No : __ 7_7_6_..,.6_7_0_0 _____ _ P.O. Box 674 Address : Bryan, Tx 77806 Telephone No: _7~7~9_-~1 ~11~2~~---- Application is hereby made for the following development specific waterway alterations : Subdivision construction along North Fork of Lick Creek .Drainage Area. ~ Application Fee 00 Signed Certifications 0 Drainage and erosion control plan, with supporting Drainage Report two (2) copies each. 0 Site and Construction Plans, with supporting Drainage Report two (2) copies each . 0 Other: ------------------------------- ACKNOWLEDGfvfENTS : I, _J_ame __ s_o_. _er_aw_e_l_l_,_P __ re_s_. _ _J ~wner, 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 aceording to these documents and the requirements of Chapter 13 of the College Station City Code. ~o .~ P~ner(s) James o. Crowell, President young contractors, Inc. BEGONIA CDRPORATION Figure XTI Continued CERTrFICA TIO NS : (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 designated 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 rcsi dentiai siructure, 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 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 streets, or existing drainage facilities. I hereby grant this .permit for development. AJI development shall be in -accordance with the plans and specifications submitted to and approved by the City Engineer for the above named project. AJI of the applicable codes and ordinances of the City of College Station shall apply . STORM WATER POLLUTION PREVENTION CERTIFICATION EDELWEISS ESTATES, PHASE 4-B (TECHNICAL PROVISION 905 REV (12/95) I certify under penalty of law that I understand the terms and conditions of the General National Pollutant Discharge Elimination System (NPDES) permit that authorizes the storm water discharges associated with industrial activity from the construction site identified as a part of this certification . . By: (Corporate Seal) Company Name r1 Date 41230 Federal Register / Vol. 57, No. 175 / Wednesday. September 9. 1992 / Notices I Appendix C -NOi Form Instructions S.. Rev•,... for lnetructlon• Form Apptov9d. OM8No..-- ~ ........ ,~.~ r ft EPA --~----~~---N'OES W..tlklgton, DC 20460 FORM ~W, Notice of Intent (NOi) for Storm Water Discharges Associated with Industrial Activity Under the NPDES General Permit Su~ °' .,. Nollc:e °' ntent c:onllhuM noCioe rm .... patty ldenclfted In Sedlot'l I °' ltlis torm lntllndc " be &J1horized by a NPOES p«mlt luued lot •tonn -<*dwQM ess.odalllld Miii lndualrlal ~In hi Stal8 ldendlled In Section II of~ torm . ~a~~ IUCh ~~ t> comply wffl hi..,.,,. 9ld c:ondilion& of tie permit. ALL N CESSARY INFORMATION MUST BE PROVIDED ON I FORM. I I. Fadllty Operat>< lnlonnatial Nana: 1f.~ ·,v ,·\~, 1c,o.A 1i1r1"" 1 c,f1'21 c..1 f 1. 1~.A 1 '-1 I I I I I I I I Phone : l4{6R I 1-11-11111I1 /..1 ~I I I I ./,1, 16 10 1)'1 ,6,7,'-/, I Status of ~ Addr-: I I I I I I I I I I I I I I I I I I I I I ewr-.operaa: .. I City: (J, r, )",~ ,,...,, I I I I I I I I I I I I I I I I I Stare : lZdf ZIP Code : 1~1'1£:1-"1b1 ·, I I I I II. Fadllty/Sile Localion lnlonna~--. i I I t.E,.o,e, l,w,e, i , s-.,5, ,t-:.S-If 1.lf I f 1e 1f 1 ,17,J. ,f< 1.5 ,e I ,7;'-.~ I Is lhe Facility Localed ai ~ Na-ne : I I Indian Lands? (Y or N) I Addres&: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I City: 1l 1v.; 1 (._1 e~~ 1 1S.1i.1ts.1i.1 ;, o, ~· I I I I I I I I Stal&: 11d'l ZIP Code : l~;i.I 3-. Y,>. . I · I I I I Llllllde: ~1~1/ I f'L;r.fl LcngiaJde : I~ ~ I I ~o I 'Ii 710uaner: Li_I Sec11on : Ll Township: I I I I I Range : I I I I I 111. Site AcfMty lnformallal MS4 Operat>< Name: i?J ~.f>*' I o,f. I(' "2 I l1 /1~1'11~ I 15 1-f,4 1../1itC>1M I I I I I I I I / ReoelYlng Waler Body : via.~ t.11. ,/Cl). ~ .K.., .t2. ,r:-, l-,f i.,K. C,,ll..,£f. /.Q. H Yau -Fiiing M a C<>-pennjuee. En• Stonn Water General Permit Number: I I I I I I I I I I he There Exis~ ~ Ouantilalive Data (Y or N) Is lhe FadU!ra Required t> Submit Moritoring ta? ( 1. 2. or 3) [2J SIC or Oeslgnalled AaMt(Code: Prnwy: c(,o, I I 2nd : I I I I I 3rd : I I I I I 4th: I I I I I If This F~is a Member of a Gtou~ Appllcallon, w Group Applicalion umber: I I I I I If Yau .._ Oltl8r Existino NPDES I I I I I I Penni•, Enw Permit Numbers : I I I I I I I I I I I I I I I I I I I I I I I I IV. Addib\al lnfonnalion Requl-ed lot Conslndon Acfvt-.S Ontf Projea ~don SlanO.: Dale : Is lhe SIOtm Waler Pollution Prevention Plan 1L2.Jo.L 1~.21 I 12101.£'.17121 EsllmatDd NA t> be I 31 In Compianc:e with Stale and.'or local JEJ Dis II.Jibed (In Aaec): I I I I Sediment and ErO&ion Plans? (Y or N) V. ~: I 08r1lly under penaJ!y of law f\at this document a-id Ill altadlments wav prepared urdet my dinldion or supervision in acxordanoll wfltl a 'YSllm dKigned t> assure flat qualified personnel property gathel' and wauai& lhe inlonnalion submitled. Based or1 my rquiry of he person or persot"& ¥ltlO mreoe ':!rc1am· or llOW persons diredly responslbte lot oalhel1ng ht normaion. he inlonnatlon submined is . " he best °' my ~ and belel, rue. ==~0::-"'· I 1m aw;n flat fl8!9 are significant penal"Oe6 tor submitting false lnlonnaO<ln. including he possibility of fine Imprisonment tor PrintNlme: ,Ji Oal8: I Ke.., /,f') I ,/l,; 1e 1r 15 10 111 1 I I l I I I I I I I I I I I I 1L/1L.41p1 Slgneue: ~-/~/~ / EPA Fo-m lSIH (&-112) ... , ~-Edelwiess Estates Phase 48 Engineer's Construction Cost Estimate ..... September 18, 1997 Item Description Unit Quantity Unit Amount No. Cost PAVEMENT COSTS 1 Erosion & Sedimentation Control L.S. 1 $ 3,500 .00 $ 3,500 .00 2 Clearing and Grubbing Ac . 3 525 .00 1,312.50 3 Roadway Excavation C.Y. 5, 180 2.50 12,950.00 4 6" Lime Stab ilized Subgrade (6% Lime) S.Y. 8 ,610 2.25 19,372.50 5 Extra Lime Ton 58 75 .00 4,350 .00 6 6" Flexible Base Crushed Stone S.Y. 4 ,587 5 .50 25,228 .50 7 7" Flexible Base Crushed Stone S.Y . 2 ,432 6.40 15 ,564 .80 8 1%'' Hot Mix Asphaltic Concrete (Type D) S.Y. 7,018 3 .80 26 ,668.40 9 Re inf. Cone . Curb (Type A) LF. 3,028 7 .00 21 ,196 .00 10 Std . Reinf. Conc ... Curb LF. 1, 156 7 .00 8 ,092 .00 11 Reinf. Cone . Apron/Driveway (6" Thick) S.F. 1,241 3 .15 3 ,909 .15 12 Reinf. Cone . Sidewalk (4" thick) S.F. 14 ,2 00 2 .15 30 ,530.00 13 Adjust Exist ing Utility Lines LS. 1 3 ,000 .00 3 ,000 .00 TOTAL PAVEMENT COSTS $ 175,673.85 STORM DRAIN/ DETENTION POND COSTS 14 5' Std . Recessed Cone. Inlet Ea . 1 $ 1,600.00 $ 1,600.00 15 10' Std . Recessed Cone . Inlet Ea. 4 2,000.00 8,000 .00 16 18" RCP (C -76, Cl. Ill) LF. 31 28 .00 868 .00 17 21" RCP (C-76, Cl. 111) LF. 31 32.00 992 .00 18 27" RCP (C-76, Cl. Ill) LF. 333 36 .00 11 ,988 .00 19 30" RCP (C -76, Cl. Ill) LF. 258 38 .00 9 ,804 .00 20 33" RCP (C -76, Cl. Ill) LF . 45 40 .00 1,800 .00 21 Trench Safety (Storm Drain) LS. 500 .00 500 .00 TOTAL STORM DRAIN COSTS $ 35,552.00 WATER LINE COSTS 22 6" PVC (C900 , Cl. 200) LF. 1,309 $ 15 .00 $ 19 ,635 .00 23 8" PVC (C900 , Cl. 200) LF. 697 18.00 12,546.00 24 8" M .J . Gate Valve Ea. 2 525 .00 1,050 .00 25 6" M.J . Gate Valve Ea. 3 350 .00 1,050.00 26 8" x 8" M.J . Tee Ea . 2 175.00 350 .00 27 8" X 45° M.J . Bend Ea . 5 180.00 900 .00 28 6" X 45° M.J . Bend Ea . 2 170.00 340 .00 29 8" x 13" M.J . Coupling Ea. 3 260 .00 780 .00 30 2" Blow off Assembly DFO ~ 420 .00 420 .00 31 Fire Hydrant Assembly 1,575.00 3 ,150 .00 32 6" x 13" M.J . Coupling CTIO N 185 .00 370.00 33 8" x 6" Reducer 260 .00 260 .00 Item No. 34 35 36 37 Edelwiess Estates Phase 48 Engineer's Construction Cost Estimate September 18, 1997 Description Unit Quantity Unit Cost 1.5" Water Service (20' Average Length) Ea. 2 500 .00 1.5" Water Service (50' Average Length) Ea . 9 735 .00 Casing Spacers & End Seals L.S . 1 200 .00 T rench Safety (Water Lines) L.S . 1 2,000 .00 TOTAL WATER LINE COSTS SEWER LINE COSTS 38 Standard 4' D iameter Manhole ( depth) Ea . 4 $ 1,575.00 39 6" PVC (6' to 8' Depth)(SDR -26, 03034) L.F . 986 15 .75 40 Type I Sewer Service (6' Avg . Length) Ea . 6 315 .00 41 Type I Sewer Service (29' Avg . Length} Ea . 4 525.00 42 Type I Sewer Service (49' Avg . Length) Ea . 8 685 .00 43 Type I Sewer Service (53' Avg . Length) Ea . 3 685 .00 44 Type II Sewer Service (5' Avg . Length) Ea . 2 315 .00 45 Type II Sewer Service (80' Avg . Length) Ea. 2 840 .00 46 Trench Safety (Sewer Lines) L.S . 1 1,000 .00 TOTAL SEWER LINE COSTS TOTAL CONSTRUCTION AMOUNT: Page 2 of 2 Amount 1,000.00 6 ,615 .00 200 .00 2 ,000 .00 $ 50 ,666 .00 $ 6,300 .00 15 ,529 .50 1,890 .00 2 ,100 .00 5,480 .00 2,055 .00 630 .00 1,680 .00 1,000 .00 $ 36,664.50 $ 298,556.35 Edelwiess Estates Phase 48 Engineer's Construction Cost Estimate September 18, 1997 Item Description Unit Quantity Unit No. Cost PAVEMENT COSTS 1 Eros ion & Sed imentation Control L.S. 1 $ 3 ,500 .00 2 C learing and Grubbing Ac . 3 525 .00 3 Roadway Excavation C .Y. 5 , 180 2.50 4 6" Li me Stab ilized Subgrade (6% Lime) S.Y. 8,610 2.25 5 Extra Lime Ton 58 75 .00 6 6" Flexible Base Crushed Stone S.Y. 4 ,587 5.50 7 7" Flexible Base Crushed Stone S.Y. 2,432 6.40 8 1Y2'' Hot Mix Asphaltic Concrete (Type D) S.Y. 7,018 3 .80 9 Re i nf. Cone . Curb (Type A ) L.F. 3,028 7 .00 10 St d . Reinf. Conc ... Curb L.F . 1, 156 7 .00 11 Re inf. Cone. Apron/Driveway (6" Thic k ) S.F. 1,241 3 .15 12 Re i nf. Cone . Sidewalk (4 " th ick) S .F. 14 ,200 2.15 13 Adj ust Existing Utility Lines L.S . 1 3,000 .00 TOTAL PAVEMENT COSTS STORM DRAIN/ DETENTION POND COSTS 14 5' Std . Recessed Cone. Inlet Ea . 1 $ 1,600 .00 15 1 O' Std . Recessed Cone . Inlet Ea . 4 2,000 .00 16 18" RCP (C -76, Cl. Ill) L.F . 31 28 .00 17 21 " RCP (C -76 , C l. Ill) L.F. 31 32 .00 18 27" RCP (C-76 , Cl. 111) L.F. 333 36 .00 19 30" RCP (C-76, Cl. Ill) L.F . 258 38 .00 20 33" RCP (C-76, Cl. 111) L.F . 45 40 .00 21 Trench Safety (Storm Drain) L.S . 1 500 .00 TOTAL STORM DRAIN COSTS WATER LINE COSTS 22 6" PVC (C900, Cl. 200) L.F . 1,309 $ 15 .00 23 8" PVC (C900 , Cl. 200) L.F . 697 18 .00 24 8" M .J. Gate Valve Ea . 2 525 .00 25 6" M.J . Gate Valve Ea . 3 350 .00 26 8" x 8" M.J . Tee Ea . 2 175 .00 27 8" X 45° M.J . Bend Ea . 5 180 .00 28 6" X 45° M.J . Bend Ea . 2 170.00 29 8" x 13" M.J . Coupling Ea . 3 260 .00 30 2" Blow off Assembly PP ~~v ED FO f 420 .00 31 Fi re Hydrant Assembly CON 1,575 .00 32 6" x 13" M.J . Coupling S aR UCTIO ~ 185 .00 33 8" x 6" Reducer _J:a. 1 260 .00 ' 'l:.r iG 4 1!:1~/ Amount $ 3 ,500 .00 1,312 .50 12 ,950 .00 19 ,372 .50 4 ,350 .00 25,228.50 15 ,564 .80 26 ,668.40 21 ,196.00 8,092.00 3,909 .15 30,530 .00 3 ,000 .00 $ 175,673.85 $ 1,600 .00 8,000 .00 868 .00 992.00 11 ,988 .00 9,804.00 1,800.00 500 .00 $ 35,552.00 $ 19 ,635 .00 12,546.00 1,050.00 1,050 .00 350 .00 900.00 340 .00 780 .00 420 .00 3 ,150.00 370 .00 260 .00 Item No. 34 35 36 37 Edelwiess Estates Phase 48 Engineer's Construction Cost Estimate September 18, 1997 Description Unit Quantity Unit Cost 1.5" Water Service (20' Average Length) Ea. 2 500 .00 1.5" Water Service (50' Average Length) Ea. 9 735 .00 Cas ing Spacers & End Seals L.S . 1 200 .00 T rench Safety (Water Lines) L.S . 1 2 ,000 .00 TOTAL WATER LINE COSTS Amount 1,000 .00 6 ,615 .00 200 .00 2 ,000 .00 $ 50,666.00 SEWER LINE COSTS 38 Standard 4' Diameter Manhole ( depth) Ea . 39 6" PVC (6' t o 8' Oepth)(SOR-26 , 03034) L.F . 40 Type I Sewer Service (6 ' Avg. Leng t h ) Ea . 41 Type I Sewer Service (29 ' Avg . Length) Ea . 42 Ty pe I Sewer Service (49' Avg . Length) Ea . 43 Type I Sewer Service (53' Avg. Length) Ea . 44 Type II Sewer Service (5 ' Avg . Length) Ea . 45 Type II Sewer Service (80' Avg . Length) Ea . 46 Trench Safety (Sewer Lines) L.S. TOTAL SEWER LINE COSTS TOTAL CONSTRUCTION AMOUNT: Page 2 of 2 4 $ 986 6 4 8 3 2 2 1 1,575 .00 $ 6 ,300 .00 15.75 15,529.50 315 .00 1,890 .00 525 .00 2 , 100 .00 685 .00 5,480 .00 685 .00 2,055 .00 315 .00 630 .00 840 .00 1,680 .00 1,000.00 1,000.00 $ 36,664.50 $ 298,556.35 APPROVED FOR CONSTRUCTfC)N SEP 2 4 1997 COLLEGE STATION ENGINEERING