PROJ00462

• Contract/PO #: FS0036X
• Contractor Name: Idaho Springs, City of
• Contract Type: Loan
• Water District: 0
• County: Clear Creek
• Loan Projects - Doc Type: Feasibility Study

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FLOOD ROUTING COMPUTATIONS THRU RESERVOIR - Probable Maximum Flood - Assumption B
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) ( 11) (12) (13)
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Inflow Av. Rate Trial Res. Av. Rate Incremental Reservoir
TIme @ time of Inflow storage - Outflow of Outflow storage Total Elev..end
t, 6t, t, Q for 6 t Inflow elcv. @ @ timc t, Qo for L t Outflow, Ls, storage of Gt. Re-
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Hours Hours sec. ...ft. scc..-ft. acre-ft. time t scc. - ft. scc. -ft. acre-ft. acre-ft. ac re- ft. feet marks
0.00 0 125. 1
0.25 50 1.0 91.1 30 15 0.3 O. 7 125.8 91.1 ok
0.25 100
0.50 3'70 7.6 91. 5 170 100 2.1 5.5 131. 3 91. 5 ok
0.50 640
O. 75 1,360 28. 1 92.8 1,075 623 12.9 15.2 146.5 92.8 ok
0.75 . 2,080
1.00 3,440 71.7 94.5 3,250 2,163 44. 7 27.0 173.5 94.5 O'k-
1.00 4,800
1.25 5,200 107.4 95.7 5,200 4,225 87.3 20. 1 193.6 95.7 ok
1. 25 5,600
1. SO 4,635 95.7 95.4 4,700 4,950 102.3 -6.6 l87.0 95.4 ok
1. SO 3,670
1. 75 2,685 55.5 94.1 2,700 3,700 76.4 -20.9 166.1 94. 1 ok
1.75 1, 700
2.00 1,118 23.1 92.9 1,200 1,950 40.3 -17.2 148.9 92.9 ok
2.00 535
2.25 393 8. 1 92.1 500 850 17.6 -9.5 139.4 92. 1 ok
2.25. 250
2.50 165 3.4 91. 8 300 400 8.3 -4.9 134.5 n.8 ok
2.50 80
2. 75 -- 45 1.9 91. 5 170 235 4.9 -3.0 131. 5 91. 5 ok
.2.75 10
3.00 5 O. 1 91. 3 100 135 2.8 -2.7 128.8 91. 3 ok
3.00 0
3.25 - - 91. 2 60 80 1.7 -1. 7 127.1 91.2 ok
3.25 -
3.50 - - 91. 1 30 45 0.9 -0.9 126.2 91. 1 ok
3.50 -
3. 75 - - - - - - - - - -
3. 75 -
4.00 - - - - - - - - - -
4.00 -
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