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FLOOD11632 (2)
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Last modified
1/26/2010 10:25:18 AM
Creation date
1/5/2009 2:45:10 PM
Metadata
Fields
Template:
Floodplain Documents
County
Costilla
Community
Costilla County
Stream Name
Rito Seco
Basin
Rio Grande
Title
Approximate Floodplain - Rito Seco
Date
1/5/2007
Prepared For
Costilla County
Prepared By
HDR Engineering, Inc.
Floodplain - Doc Type
Floodplain Report/Masterplan
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costilla.rep <br />BR Open Area sq ft) <br />BR open Vel ( t/5) 143.50 <br />3.28 Frctn Loss (ft) <br />C& E Loss (ft) 0.07 <br />0.00 0.00 <br />0.00 <br />coef of Q shear Total (lb/sq ft) 0.35 0.38 <br />Br Sel Method Energy only Power Total (lb/ft s) 1.10 1.25 <br />BRIDGE OUTPUT PrOfile #25-vear <br />E.G. U5. ft 8013.64 Element Inside BR US inside BR DS <br />W.S. us. ft 8013.46 E.G. Elev (ft) 8013.64 8013.56 <br />Q Total (cfs) 295.00 W.S. Elev (ft) 8013.46 8013.36 <br />Q Bridge (cfs) 295.00 Crit W.S. (ft) 8012.31 8012.31 <br />Q weir (cfs) Max Chl Dpth ft) 2.46 2.36 <br />Weir Sta ~ft (ft) vel Total (ftss) 3.43 3.58 <br />Weir Sta Rgt (ft) Flow Area (sq ft) 85.92 82.47 <br />Weir Submerg Froude # Chl 0.39 0.41 <br />Weir Max Depth (ft) specif Force (cu ft;) 136.93 129.94 <br />Min E1 Weir Flow (ft) 8011.01 Hydr ~epth (ft) 2.46 2.36 <br />Min El Prs (ft) 8015.10 w.P. Total (ft) 37.45 37.36 <br />Delta EG (ft) 0.08 Conv. Tota1 (cfs) 5552.2 5194.6 <br />Delta WS (ft) 0.10 Top Width (ft) 35.00 35.00 <br />BR open Area (s ft) 143.50 Frctn Loss (ft) 0.08 0.00 <br />BR Open Vel (ft95) 3.58 C& E Loss (ft) 0.00 0.00 <br />Coef of Q Shear Total (lb/sq ~t) 0.40 0.44 <br />Br Sel ~ethod Energy only Power Total (lb/ft ~>) 1.39 1.59 <br />BRIDGE OUTPUT Profile #50-Year <br />E.G. U5. (ft) 8014.19 Element inside BR US Inside BR DS <br />w.5. U5. (ft) 8013.90 E.G. Elev (ft) 8014.19 8014.07 <br />Q Total (cfs) 435.00 w.s. Elev (ft) 8013.90 8013.75 <br />q Bridge (cfs) 434.95 Crit W.S. (ft) 8012.69 8012.69 <br />Q weir (cfs) Max Chl Dpth (ft) 2.90 2.75 <br />weir sta Lft (ft) vel Total (ft/s) 4.27 4.52 <br />weir Sta Rgt (ft) Flow Area (sq ft) 101.98 96.14 <br />weir Submerg Froude # Chl 0.44 0.48 <br />Weir Max Depth (ft) Specif Force (cu ft;l 205.42 193.18 <br />Min E1 Weir Flow (ft) 8011.01 Hydr Depth (ft) 2.21 2.75 <br />Min E1 Prs (ft) 8015.10 W.P. Total (ft) 54.94 37.75 <br />Delta EG (ft) 0.12 Conv. Total (cfs) 6628.7 6661.3 <br />Delta WS (ft) 0.16 Top Width (ft) 46.17 35.00 <br />BR Open Area (s ft) 143.50 Frctn Loss (ft) 0.11 0.00 <br />BR Open vel (ft9s) 4.52 C& E Loss (ft) 0.01 0.00 <br />Coef of Q shear Total (lb/sq ft) 0.50 0.68 <br />Br Sel Methocl Energy only Power Total (lb/ft s) 2.13 3.07 <br />BRIDGE OUTPUT Profile #100-Year <br />E.G. US. (ft) 8014.51 Element Inside BR US Inside BR DS <br />W.S. U5. (ft) 8014.18 E.G. Elev (ft) 8014.51 8014.36 <br />Q Total (cfs) 522.00 W.S. Elev (ft) 8014.18 8013.97 <br />Q Bridge (cfs) 516.52 Crit w.s. (ft) 8012.92 8012.92 <br />Q weir (cfs) Max Chl Dpth (ft) 3.18 2.97 <br />~ <br />~ T <br />/ <br />t <br />weir Sta Rgt <br />ft F1ow <br />Area ~sq <br />f <br />) 122.32 105.18 <br />weir submerg Froude # Chl 0.42 0.51 <br />weir Max Depth (ft) specif Force (cu ft;i 252.85 235.38 <br />Min E1 Weir Flow (ft) 8011.01 Hydr Depth ft) 1.23 1.81 <br />Min E1 Prs (ft) 8015.10 W.P. Total ~ft) 109.67 67.02 <br />Delta EG (ft) 0.16 Conv. Total (cfs) 7714.6 6850.0 <br />Delta WS (ft) 0.22 Top width (ft) 99.79 58.00 <br />BR Open Area sq ft) <br />BR o <br />en Vel ( t <br />) 143.50 <br />4 <br />98 Frctn Loss (ft) <br />C& <br />f 0.14 0.00 <br />p <br />/s <br />Coef of Q . E Loss ( <br />t) <br />shear Total (lb/sq ft) 0.02 <br />0.32 0.00 <br />0.57 <br />Br Sel Method Energy only Power Total (lb/ft s;) 1.36 2.82 <br />BRIDGE OUTPUT Profile #200-Year <br />E.G. U5. (ft 8014.80 Element Inside BR US Inside BR DS <br />w.s. U5. (ft 8014.44 E.G. Elev (ft) 8014.80 8014.61 <br />Q Total (cfs) 615.00 W.S. Elev (ft) 8014.45 8014.14 <br />Q Bridge (cfs) 589.50 Crit W.S. (ft) 8013.15 8013.15 <br />Q weir (cfs) Max Chl Dpth (ft) 3.44 3.14 <br />weir sta Lft (ft) vel Total (ft/s) 3.97 5.22 <br />weir Sta Rgt (ft) Flow Area (sq ft) 155.02 117.77 <br />Weir 5ubmerg Froude # Chl 0.38 0.52 <br /> Page 6 <br />
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