2009-01-05_HYDROLOGY - M1999120

• Permit No: M1999120
• IBM Index Class Name: HYDROLOGY
• Doc Date: 1/5/2009
• Doc Name: Weld County Flood Permit
• From: L.G. Everist
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: PSH
• Media Type: D
• Archive: No

HEC-RAS River: River #1 Reach: Reach #1 Profile: PF 1
Reach River Sta Profile Plan Q Total Min Ch El Max Chi Dpth W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Left Vel Chnl Vel Right Flow Area To Width
(cfs) (ft) (ft) (ft) (ft) (ft) (Wft) (mss) (mss) ON (s4 ft) (ft)
Reach #1 100 PF 1 Ex Topo 29000.00 4868.00 9.42 4877.42 4877.82 0.001894 2.79 7.34 1.85 7911.45 3782.33
Reach #1 100 PF 1 Pre-Mining 29000.00 4868.00 9.29 4877.29 4877.70 0.002009 2.64 7.49 1.81 8225.86 4340.84

Reach #1 90 PF 1 Ex Topo 29000.00 4868.00 8.86 4876.86 4877.06 0.001051 2.21 5.36 2.51 10426.55 4472.53
Reach #1 90 PF 1 Pre-Mining 29000.00 4868.00 8.93 4876.93 4877.06 0.000721 1.80 4.47 2.12 13249.76 5881.91

Reach #1 80 PF 1 Ex Topo 29000.00 4868.00 8.71 4876.71 4876.78 0.000460 1.68 3.37 1.39 15735.30 6124.70
Reach #1 80 PF 1 Pre-Mining 29000.00 4868.00 8.72 4876.72 4876.81 0.000589 1.69 3.82 1.58 15047.58 6619.07

Reach #1 70 PF 1 Ex Topo 29000.00 4868.00 8.24 4876.24 4876.43 0.001128 2.31 5.48 2.19 10643.41 5675.66
Reach #1 70 PF 1 Pre-Mining 29000.00 4868.00 8.28 4876.28 4876.43 0.000979 1.90 5.13 2.07 12794.41 6787.79

Reach #1 60 PF 1 Ex Topo 29000.00 4866.00 7.90 4873.90 4873.90 4874.98 0.005198 4.31 10.43 4519.80 2033.76
Reach #1 60 PF 1 Pre-Mining 29000.00 4866.00 7.89 4873.89 4873.85 4875.06 0.005564 4.43 10.78 4317.54 1928.47

Reach #1 50 PF 1 Ex Topo 29000.00 4866.00 8.17 4874.17 4874.27 0.000680 1.89 3.86 13533.70 5546.20
Reach #1 50 PF 1 Pre-Mining 29000.00 4866.00 8.23 4874.23 4874.37 0.000988 1.98 4.68 12266.33 6069.44

Reach #1 40 PF 1 Ex Topo 29000.00 4866.00 7.89 4873.89 4873.96 0.000417 1.69 3.35 1.82 15464.79 5303.84
Reach #1 40 PF 1 Pre-Mining 29000.00 4866.00 7.90 4873.90 4873.97 0.000447 1.78 3.47 1.88 14647.08 4843.06

Reach #1 30 PF 1 Ex Topo 29000.00 4864.00 9.70 4873.70 4873.79 0.000470 1.66 3.88 2.09 14630.82 5712.39
Reach #1 30 PF 1 Pre-Mining 29000.00 4864.00 9.70 4873.70 4873.79 0.000489 1.67 3.96 2.14 14403.11 5710.10

Reach #1 20 PF 1 Ex Topo 29000.00 4864.00 9.66 4873.66 4873.70 0.000159 1.23 2.36 129 21492.86 628915
Reach #1 20 PF 1 Pre-Mining 29000.00 4864.00 9.66 4873.66 4873.70 0.000161 1.25 2.38 1.30 21242.85 6138.23

Reach #1 10 PF 1 Ex Topo 29000.00 4864.00 8.86 4872.86 4872.86 4873.57 0.002375 3.27 8.55 3.47 5793.94 3616.12
Reach #1 10 PF 1 Pre-Mining 29000.00 4864.00 8.86 4872.86 4872.86 4873.57 0.002375 3.27 8.55 3.47 5793.94 3616.12