Legend:
Plan TFH1:
Plan TFH2:
Plan TFH3:
Plan TFH4:
Plan TFH5:
n1:
breaching outflow hydrographs generated by assuming time to dam failure of 0.25hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 0.50hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 1.00hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 2.00hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 3.00hr in HEC-1, and used as inflow in HEC-RAS river routing,
Manning coefficients value, provided by the dam owner. (n1 = 0.04)
170
HEC-RAS Outputs:
Peak flows versus time to dam failure in hours for a specified Manning coefficient value
7.72666*
7.72666*
7.72666*
7.72666*
7.72666*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
18919.4
12008.7
7251.6
4210.3
2993.2
974.5
974.5
974.5
974.5
974.5
1000.1
996.73
993.25
989.54
987.36
1001.37
997.84
994.16
990.24
987.96
0.001738
0.001832
0.001987
0.002187
0.002164
9.91
8.86
7.7
6.7
6.23
2402.12
1593.81
983.45
628.53
480.4
264.35
211.73
134.36
74
61.94
0.41
0.41
0.41
0.41
0.39
0.04
0.04
0.04
0.04
0.04
1.71
1.73
1.75
1.75
1.85
Main Channel
Main Channel
Main Channel
7.59
7.59
7.59
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
18709.4
11928.2
7235.3
973.5
973.5
973.5
995.24
993.09
990.24
998.88
995.47
991.82
0.00649
0.005108
0.004565
15.7
12.42
10.11
1332.87
996.76
715.37
182.76
130.58
77.96
0.75
0.65
0.59
0.04
0.04
0.04
1.69
1.7
1.72
171
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
6.81
6.81
6.81
6.81
6.81
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
15205.3
11294.6
7070.8
4181.4
2982.2
959
959
959
959
959
974.8
973.54
971.76
969.2
967.66
976.95
975.5
973.4
970.44
968.71
0.00534
0.005281
0.005173
0.005138
0.005134
13.03
11.96
10.36
8.94
8.21
1594.03
1190.06
743.95
467.75
363.03
372.97
284.12
215.42
72.1
63.56
0.69
0.67
0.64
0.62
0.61
0.04
0.04
0.04
0.04
0.04
1.58
1.59
1.6
1.59
1.67
Main Channel
Main Channel
Main Channel
Main Channel
6.68666*
6.68666*
6.68666*
6.68666*
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
14910.9
11209.4
7045.2
4178.3
955.67
955.67
955.67
955.67
971.46
970.29
968.44
965.86
973.54
972.16
970.06
967.1
0.005152
0.005014
0.005116
0.005157
12.79
11.71
10.31
8.95
1591.3
1211.08
745.57
466.84
372.34
286.92
215.72
72.03
0.68
0.66
0.64
0.62
0.04
0.04
0.04
0.04
1.56
1.57
1.58
1.57
172
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
5.9025*
5.9025*
5.9025*
5.9025*
Max WS
Max WS
Max WS
Max WS
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
10502.5
6896.6
4152.9
2972.6
936.5
936.5
936.5
936.5
951.08
949.48
947.05
945.47
952.75
950.9
948.15
946.4
0.004495
0.0044
0.004415
0.004417
11.06
9.72
8.43
7.76
1199.03
791.85
492.78
382.84
285.32
224.05
74.04
65.12
0.62
0.6
0.58
0.56
0.04
0.04
0.04
0.04
1.44
1.45
1.43
1.5
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
5.795*
5.795*
5.795*
5.795*
5.795*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
12570.2
10406.1
6860.9
4150.1
2971.3
934
934
934
934
934
949.3
948.54
946.89
944.55
942.98
951.09
950.2
948.35
945.65
943.91
0.004572
0.004499
0.004567
0.004399
0.004394
11.69
11.03
9.83
8.41
7.75
1419.38
1188
771.27
493.18
383.45
330.27
283.85
220.38
74.08
65.17
0.63
0.62
0.61
0.57
0.56
0.04
0.04
0.04
0.04
0.04
1.41
1.42
1.44
1.42
1.48
173
Main Channel
Main Channel
Main Channel
Main Channel
4.968*
4.968*
4.968*
Max WS
Max WS
Max WS
TFH3 n1
TFH4 n1
TFH5 n1
6698.6
4116.8
2957.2
913
913
913
926.39
924.38
922.73
927.52
925.23
923.45
0.003355
0.003142
0.003132
8.77
7.4
6.81
887.22
556.61
434.08
240.15
78.79
69.39
0.52
0.49
0.48
0.04
0.04
0.04
1.3
1.27
1.33
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
4.854*
4.854*
4.854*
4.854*
4.854*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
10687.4
9430.1
6651.5
4109.6
2952.6
911
911
911
911
911
926.41
925.86
924.52
922.66
921.03
927.65
927.05
925.58
923.44
921.68
0.003149
0.003148
0.003092
0.002825
0.002755
9.77
9.43
8.5
7.1
6.49
1455.27
1281.34
918.73
578.62
455.12
339.49
296.1
245.1
80.36
71.1
0.53
0.52
0.5
0.47
0.45
0.04
0.04
0.04
0.04
0.04
1.25
1.26
1.27
1.25
1.3
174
Main Channel
Main Channel
Main Channel
3.96*
3.96*
Max WS
Max WS
TFH4 n1
TFH5 n1
4001.0
2922.9
900.43
900.43
912.4
910.78
913.08
911.36
0.002394
0.002363
6.63
6.11
603.58
478.6
82.11
72.95
0.43
0.42
0.04
0.04
1.04
1.08
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
3.83
3.83
3.83
3.83
3.83
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
8813.7
8121.3
6238.1
3996.6
2919.5
899
899
899
899
899
913.76
913.44
912.43
910.53
908.94
914.84
914.5
913.4
911.3
909.6
0.002892
0.002882
0.002847
0.002797
0.002792
8.98
8.77
8.1
7.03
6.5
1251.4
1159.69
897.37
568.7
448.97
292.22
280.03
241.76
79.66
70.6
0.5
0.5
0.48
0.46
0.45
0.04
0.04
0.04
0.04
0.04
1.02
1.02
1.03
1.01
1.05
Main Channel
3.694*
Max WS
TFH1n1
8665.4
897
911.69
912.77
0.002885
8.93
1233.03
289.82
0.5
0.04
0.99
175
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
2.89666*
2.77*
2.77*
2.77*
2.77*
2.77*
2.64333*
2.64333*
Max WS
TFH5 n1
2872.0
886.78
897.91
898.35
0.001682
5.35
536.93
77.36
0.36
0.04
0.82
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
7407.5
6978.8
5757.8
3858.0
2864.2
885.67
885.67
885.67
885.67
885.67
900.7
900.47
899.74
898.21
896.79
901.39
901.14
900.37
898.74
897.23
0.001796
0.001777
0.001742
0.001721
0.001678
7.2
7.06
6.65
5.87
5.34
1331.79
1263.29
1060.31
697.66
536.28
306.63
293.77
266.18
206.75
77.31
0.39
0.39
0.38
0.37
0.36
0.04
0.04
0.04
0.04
0.04
0.77
0.77
0.78
0.77
0.79
Max WS
Max WS
TFH1n1
TFH2 n1
7246.5
6858.3
884.56
884.56
899.5
899.28
900.18
899.95
0.001786
0.001782
7.14
7.03
1305.65
1241.22
299.22
290.9
0.39
0.39
0.04
0.04
0.74
0.74
176
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
1.5075*
1.5075*
1.5075*
1.5075*
1.5075*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
6077.8
5842.7
5123.6
3635.4
2778.3
875.25
875.25
875.25
875.25
875.25
889.8
889.66
889.17
887.88
886.62
890.37
890.21
889.69
888.34
887.01
0.001524
0.001515
0.001495
0.001459
0.001437
6.43
6.34
6.09
5.44
5
1192.09
1151.12
1019.14
716.97
555.68
284.4
278.86
260.22
210.41
78.72
0.36
0.36
0.35
0.34
0.33
0.04
0.04
0.04
0.04
0.04
0.42
0.42
0.42
0.41
0.43
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
1.25625*
1.25625*
1.25625*
1.25625*
1.25625*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
5855.5
5653.1
5012.2
3606.1
2763.5
873.38
873.38
873.38
873.38
873.38
887.79
887.66
887.21
885.97
884.72
888.35
888.21
887.73
886.42
885.1
0.001514
0.00151
0.001496
0.001465
0.001439
6.35
6.28
6.05
5.44
5
1153.79
1116.72
996.54
708.34
553.18
279.22
274.15
257.03
209.11
78.54
0.36
0.36
0.35
0.34
0.33
0.04
0.04
0.04
0.04
0.04
0.35
0.35
0.35
0.34
0.35
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
1.005*
1.005*
1.005*
1.005*
1.005*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
5677.7
5478.1
4890.9
3567.4
2748.2
871.5
871.5
871.5
871.5
871.5
885.8
885.67
885.25
884.06
882.81
886.35
886.21
885.77
884.51
883.2
0.001513
0.001502
0.001484
0.00146
0.001437
6.29
6.21
5.99
5.41
4.99
1120.59
1085.8
976.37
701.14
551.09
274.66
269.8
253.89
207.41
78.39
0.36
0.36
0.35
0.34
0.33
0.04
0.04
0.04
0.04
0.04
0.28
0.28
0.28
0.27
0.28
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
.75375*
.75375*
.75375*
.75375*
.75375*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
5512.2
5334.3
4776.9
3542.2
2737.3
869.62
869.62
869.62
869.62
869.62
883.8
883.68
883.29
882.14
880.91
884.34
884.22
883.8
882.59
881.29
0.001519
0.001509
0.001478
0.001467
0.001441
6.25
6.18
5.94
5.41
4.99
1086.56
1055.5
955.18
692.91
548.89
269.92
265.53
250.83
206.11
78.21
0.36
0.36
0.35
0.34
0.33
0.04
0.04
0.04
0.04
0.04
0.2
0.2
0.2
0.2
0.2
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
.5025*
.5025*
.5025*
.5025*
.5025*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
5273.5
5129.7
4657.9
3517.9
2728.3
867.75
867.75
867.75
867.75
867.75
881.86
881.74
881.36
880.21
878.99
882.37
882.25
881.86
880.67
879.38
0.001436
0.001443
0.001447
0.001487
0.001457
6.05
6.01
5.86
5.42
5
1069.47
1038.29
940.95
682.05
545.32
267.48
263.01
248.52
203.74
77.97
0.35
0.35
0.35
0.34
0.33
0.04
0.04
0.04
0.04
0.04
0.13
0.13
0.13
0.12
0.13
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
.251249*
.251249*
.251249*
.251249*
.251249*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
5160.1
5025.7
4580.3
3496.5
2724.4
865.88
865.88
865.88
865.88
865.88
880.13
879.99
879.51
878.2
877.02
880.59
880.45
879.99
878.67
877.42
0.001278
0.001302
0.001382
0.001573
0.001507
5.77
5.76
5.73
5.51
5.07
1108.29
1070.6
947.13
653.77
537.85
272.99
267.71
249.66
198.48
77.43
0.33
0.33
0.34
0.35
0.34
0.04
0.04
0.04
0.04
0.04
0.05
0.05
0.05
0.05
0.06
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
0
0
0
0
0
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
5152.0
5018.4
4578.7
3494.6
2723.5
864
864
864
864
864
875.61
875.47
874.98
873.65
872.55
876.86
876.7
876.16
874.68
873.45
0.004518
0.004513
0.00452
0.004521
0.004518
8.96
8.9
8.71
8.15
7.65
574.81
563.76
525.74
428.68
355.92
80.09
79.3
76.53
68.95
62.99
0.59
0.59
0.59
0.58
0.57
0.04
0.04
0.04
0.04
0.04
0
0
0
0
0
872.86
872.73
872.32
871.23
870.3
177
Legend:
n1:
n2:
n3:
n4:
n5:
TFH1:
Manning coefficients value, provided by the dam owner. (n1 = 0.04)
Manning coefficients value, n2 = 0.035
Manning coefficients value, n3 = 0.0375
Manning coefficients value, n4 = 0.045
Manning coefficients value, n5 = 0.05
breaching outflow hydrographs generated by assuming time to dam failure of 0.25hr in HEC-1, and used as inflow in HEC-RAS river routing,
178
HEC-RAS Outputs:
Peak flows versus Manning coefficient values for a specified time to dam failure in hours
7.86333*
Max WS
TFH1 n 5
18960.5
975.5
1002.08
1002.94
0.001711
8.38
2919.3
292.76
0.33
0.05
2.16
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
7.72666*
7.72666*
7.72666*
7.72666*
7.72666*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
18919.4
19154.8
19075.2
18579.9
18171.6
974.5
974.5
974.5
974.5
974.5
1000.1
1000
1000.04
1000.37
1000.65
1001.37
1001.33
1001.34
1001.52
1001.69
0.001738
0.001402
0.00158
0.001979
0.002169
9.91
10.13
10.05
9.49
9.03
2402.12
2375.24
2384.97
2472.14
2549.14
264.35
262.88
263.41
268.12
272.22
0.41
0.42
0.42
0.39
0.37
0.04
0.035
0.038
0.045
0.05
1.71
1.5
1.61
1.92
2.13
Main Channel
Main Channel
7.59
7.59
Max WS
Max WS
TFH1n1
TFH1n2
18709.4
18403.1
973.5
973.5
995.24
994.05
998.88
998.65
0.00649
0.006905
15.7
17.42
1332.87
1132.82
182.76
153.85
0.75
0.87
0.04
0.035
1.69
1.49
994.05
179
Main Channel
6.81
6.81
6.81
6.81
6.81
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
15205.3
15740.9
15565.0
14642.8
13960.7
959
959
959
959
959
974.8
974.21
974.56
975.12
975.35
Main Channel
Main Channel
Main Channel
6.68666*
6.68666*
6.68666*
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
14910.9
15602.6
15323.0
955.67
955.67
955.67
971.46
971.23
971.34
974.7
976.95
977.11
977.04
976.84
976.75
0.00534
0.00571
0.005489
0.00531
0.005298
13.03
14.85
13.88
11.77
10.72
1594.03
1390.7
1506.5
1716.6
1802.37
372.97
322.72
352.22
380
380
0.69
0.81
0.74
0.61
0.55
0.04
0.035
0.038
0.045
0.05
1.58
1.39
1.48
1.78
1.97
973.54
973.72
973.64
0.005152
0.004805
0.005052
12.79
13.92
13.41
1591.3
1506.5
1547.13
372.34
352.22
362
0.68
0.74
0.71
0.04
0.035
0.038
1.56
1.37
1.46
180
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
5.9025*
5.9025*
5.9025*
5.9025*
5.9025*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
12676.3
13378.7
13146.7
11905.3
11140.4
936.5
936.5
936.5
936.5
936.5
951.85
951.44
951.7
952.08
952.26
953.64
953.76
953.73
953.52
953.43
0.004549
0.004666
0.004609
0.004577
0.004568
11.7
13.19
12.44
10.58
9.61
1435.57
1304.89
1385.04
1514.59
1577.99
334.46
299.11
321.21
354.19
369.26
0.63
0.73
0.68
0.57
0.51
0.04
0.035
0.038
0.045
0.05
1.43
1.26
1.34
1.61
1.79
Main Channel
Main Channel
Main Channel
Main Channel
5.795*
5.795*
5.795*
5.795*
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
12570.2
13415.9
13016.0
11702.0
934
934
934
934
949.3
949.28
949.25
949.5
951.09
951.33
951.21
950.93
0.004572
0.00403
0.004413
0.004591
11.69
12.53
12.21
10.54
1419.38
1411.56
1401.92
1485.52
330.27
328.23
325.7
347.06
0.63
0.68
0.66
0.57
0.04
0.035
0.038
0.045
1.41
1.24
1.33
1.59
181
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
4.968*
4.968*
4.968*
4.968*
Max WS
Max WS
Max WS
Max WS
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
11878.7
11569.7
10297.1
9582.5
913
913
913
913
928.06
928.22
928.56
928.72
929.81
929.78
929.64
929.61
0.003489
0.003528
0.003458
0.003428
11.49
10.9
9.18
8.31
1340.97
1393.48
1506.89
1566.59
309.19
323.46
352.31
366.59
0.63
0.59
0.49
0.44
0.035
0.038
0.045
0.05
1.12
1.2
1.44
1.59
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
4.854*
4.854*
4.854*
4.854*
4.854*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
10687.4
11479.9
11101.2
9918.9
9227.2
911
911
911
911
911
926.41
926.03
926.25
926.66
926.84
927.65
927.68
927.67
927.63
927.62
0.003149
0.003293
0.003202
0.003058
0.003012
9.77
11.15
10.41
8.69
7.85
1455.27
1333.71
1403.69
1544.64
1610.55
339.49
307.17
326.17
361.41
376.76
0.53
0.61
0.56
0.46
0.41
0.04
0.035
0.038
0.045
0.05
1.25
1.1
1.18
1.41
1.57
182
Main Channel
Main Channel
Main Channel
Main Channel
3.96*
3.96*
3.96*
Max WS
Max WS
Max WS
TFH1 n3
TFH1 n4
TFH1 n 5
9336.7
8272.1
7656.9
900.43
900.43
900.43
915.63
915.84
915.94
916.65
916.58
916.55
0.002323
0.002391
0.002412
8.83
7.56
6.88
1385.53
1454.32
1490.34
321.35
339.25
348.25
0.48
0.41
0.37
0.038
0.045
0.05
0.98
1.17
1.3
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
3.83
3.83
3.83
3.83
3.83
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
8813.7
9592.9
9209.7
8139.5
7528.3
899
899
899
899
899
913.76
913.56
913.67
913.92
914.04
914.84
914.96
914.9
914.79
914.75
0.002892
0.0029
0.002898
0.00288
0.002879
8.98
10.14
9.53
8.05
7.3
1251.4
1193.36
1226.14
1299.6
1336.35
292.22
284.57
288.92
298.44
307.91
0.5
0.57
0.53
0.44
0.4
0.04
0.035
0.038
0.045
0.05
1.02
0.89
0.96
1.14
1.27
183
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
2.89666*
2.89666*
2.77*
2.77*
2.77*
2.77*
2.77*
2.64333*
Max WS
Max WS
TFH1 n4
TFH1 n 5
6983.8
6445.5
886.78
886.78
902.05
902.16
902.61
902.62
0.001814
0.001813
6.53
5.92
1408.07
1445.37
327.32
336.97
0.35
0.32
0.045
0.05
0.9
1
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
7407.5
8104.9
7737.1
6831.7
6292.9
885.67
885.67
885.67
885.67
885.67
900.7
900.51
900.61
900.85
900.96
901.39
901.4
901.39
901.4
901.41
0.001796
0.0018
0.001786
0.001805
0.001801
7.2
8.14
7.62
6.48
5.87
1331.79
1274.92
1306.89
1379.97
1415.05
306.63
295.27
299.57
319.86
329.15
0.39
0.45
0.42
0.35
0.32
0.04
0.035
0.038
0.045
0.05
0.77
0.68
0.72
0.87
0.96
Max WS
TFH1n1
7246.5
884.56
899.5
900.18
0.001786
7.14
1305.65
299.22
0.39
0.04
0.74
184
Main Channel
Main Channel
Main Channel
1.75875*
Max WS
TFH1 n 5
5350.3
877.12
892.06
892.43
0.001526
5.28
1303.57
298.79
0.29
0.05
0.61
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
1.5075*
1.5075*
1.5075*
1.5075*
1.5075*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
6077.8
6632.2
6356.1
5601.6
5166.2
875.25
875.25
875.25
875.25
875.25
889.8
889.63
889.73
889.94
890.04
890.37
890.35
890.36
890.39
890.41
0.001524
0.001513
0.00152
0.00153
0.001524
6.43
7.23
6.81
5.78
5.23
1192.09
1144.27
1171.09
1231.39
1262.27
284.4
277.92
281.57
289.61
293.64
0.36
0.41
0.38
0.32
0.29
0.04
0.035
0.038
0.045
0.05
0.42
0.37
0.4
0.47
0.52
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
1.25625*
1.25625*
1.25625*
1.25625*
1.25625*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
5855.5
6422.8
6136.8
5413.9
4998.1
873.38
873.38
873.38
873.38
873.38
887.79
887.62
887.72
887.93
888.04
888.35
888.34
888.35
888.38
888.4
0.001514
0.001521
0.001518
0.001526
0.001524
6.35
7.18
6.74
5.72
5.18
1153.79
1106.62
1133.19
1193.83
1223.6
279.22
272.76
276.41
284.59
288.52
0.36
0.41
0.38
0.32
0.29
0.04
0.035
0.038
0.045
0.05
0.35
0.31
0.33
0.39
0.43
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
1.005*
1.005*
1.005*
1.005*
1.005*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
5677.7
6199.3
5937.3
5221.8
4836.8
871.5
871.5
871.5
871.5
871.5
885.8
885.62
885.72
885.94
886.04
886.35
886.33
886.34
886.37
886.4
0.001513
0.001506
0.00151
0.001508
0.001513
6.29
7.09
6.67
5.64
5.12
1120.59
1074.09
1100.11
1159.83
1190.05
274.66
268.14
271.81
280.04
284.12
0.36
0.41
0.38
0.32
0.29
0.04
0.035
0.038
0.045
0.05
0.28
0.24
0.26
0.31
0.34
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
.75375*
.75375*
.75375*
.75375*
.75375*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
5512.2
6031.3
5769.4
5063.9
4675.2
869.62
869.62
869.62
869.62
869.62
883.8
883.63
883.72
883.94
884.05
884.34
884.34
884.34
884.38
884.4
0.001519
0.001514
0.001518
0.001507
0.001501
6.25
7.05
6.63
5.59
5.06
1086.56
1042.55
1066.93
1126.12
1156.11
269.92
263.67
267.15
275.4
279.49
0.36
0.41
0.38
0.32
0.29
0.04
0.035
0.038
0.045
0.05
0.2
0.18
0.19
0.23
0.25
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
.5025*
.5025*
.5025*
.5025*
.5025*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
5273.5
5773.6
5517.5
4856.4
4504.8
867.75
867.75
867.75
867.75
867.75
881.86
881.7
881.79
882
882.1
882.37
882.36
882.37
882.41
882.44
0.001436
0.00143
0.001431
0.001436
0.001445
6.05
6.82
6.41
5.43
4.94
1069.47
1027.26
1051.06
1107.14
1136.58
267.48
261.41
264.85
272.79
276.87
0.35
0.4
0.37
0.31
0.28
0.04
0.035
0.038
0.045
0.05
0.13
0.12
0.12
0.15
0.16
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
.251249*
.251249*
.251249*
.251249*
.251249*
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
5160.1
5647.0
5392.8
4754.8
4405.1
865.88
865.88
865.88
865.88
865.88
880.13
880.05
880.1
880.22
880.29
880.59
880.63
880.61
880.59
880.61
0.001278
0.001216
0.001246
0.001313
0.00134
5.77
6.4
6.06
5.23
4.78
1108.29
1088.49
1100.01
1132.66
1153.64
272.99
270.23
271.84
276.34
279.2
0.33
0.37
0.35
0.3
0.27
0.04
0.035
0.038
0.045
0.05
0.05
0.05
0.05
0.06
0.07
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
0
0
0
0
0
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH1n2
TFH1 n3
TFH1 n4
TFH1 n 5
5152.0
5634.7
5390.4
4751.6
4400.4
864
864
864
864
864
875.61
875.38
875.51
875.81
875.97
876.86
876.97
876.91
876.82
876.8
0.004518
0.004507
0.004514
0.004518
0.004513
8.96
10.12
9.51
8.04
7.28
574.81
556.54
566.66
591.02
604.14
80.09
78.79
79.51
81.23
82.15
0.59
0.67
0.63
0.53
0.47
0.04
0.035
0.038
0.045
0.05
0
0
0
0
0
872.86
873.29
873.07
872.49
872.14
185
Legend:
Plan TFH1:
Plan TFH2:
Plan TFH3:
Plan TFH4:
Plan TFH5:
n1:
n2:
breaching outflow hydrographs generated by assuming time to dam failure of 0.25hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 0.50hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 1.00hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 2.00hr in HEC-1, and used as inflow in HEC-RAS river routing,
breaching outflow hydrographs generated by assuming time to dam failure of 3.00hr in HEC-1, and used as inflow in HEC-RAS river routing,
Manning coefficients value, provided by the dam owner. (n1 = 0.04)
Manning coefficients value, n2 = 0.035
186
HEC-RAS Outputs:
Peak flows versus Manning coefficient values for specified time to dam failure in hours at specified reach stations
8
8
8
8
8
8
8
8
8
8
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n2
TFH2n2
TFH3 n2
TFH4 n2
TFH5 n2
TFH1 n3
TFH2 n3
TFH3 n3
TFH4 n3
TFH5 n 3
20678.3
12348.6
7386.8
4241.1
3004.3
20751.1
12345.7
7363.8
4231.8
3001.3
976.5
976.5
976.5
976.5
976.5
976.5
976.5
976.5
976.5
976.5
1001.55
998.37
994.97
991.43
989.27
1001.85
998.69
995.32
991.8
989.64
1002.71
999.23
995.69
991.98
989.75
1002.95
999.48
995.97
992.31
990.08
0.001188
0.001031
0.001092
0.001272
0.001329
0.00127
0.001074
0.001109
0.001259
0.001338
9.73
8
6.98
5.98
5.57
9.49
7.73
6.69
5.71
5.29
2732.95
1897.86
1181.63
710.49
539.75
2820.06
1976.04
1244.78
745.68
567.51
285.33
240.61
176.19
90.12
72.45
289.6
245.15
184.7
99.17
74.6
0.4
0.36
0.35
0.36
0.36
0.38
0.34
0.33
0.34
0.34
0.035
0.035
0.035
0.035
0.035
0.038
0.038
0.038
0.038
0.038
1.56
1.57
1.59
1.61
1.74
1.66
1.68
1.7
1.71
1.83
187
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
7.25
7.25
7.25
7.25
7.25
7.25
7.25
7.25
7.25
7.25
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH3 n1
TFH4 n1
TFH5 n1
TFH1n2
TFH2n2
TFH3 n2
TFH4 n2
TFH5 n2
TFH1 n3
TFH2 n3
7194.0
4194.1
2986.8
17635.6
11827.7
7274.0
4213.4
2994.2
17692.7
11785.9
968
968
968
968
968
968
968
968
968
968
981.94
979.28
977.6
984.9
983.37
981.43
978.61
977.02
985.26
983.67
979.05
983.39
980.36
978.51
987.58
985.56
983.21
979.93
978.12
987.53
985.59
0.00428
0.004113
0.004083
0.004866
0.004385
0.004301
0.004109
0.004077
0.004673
0.004321
9.79
8.31
7.65
14.52
12.54
10.76
9.22
8.45
13.55
11.85
814.63
504.44
390.51
1662.43
1171.54
704.99
457.1
354.18
1799.45
1256.95
222.6
72.55
63.28
380
277.42
202.18
68.74
60.3
380
288.9
0.59
0.56
0.54
0.75
0.7
0.67
0.63
0.61
0.69
0.65
0.04
0.04
0.04
0.035
0.035
0.035
0.035
0.035
0.038
0.038
1.67
1.67
1.76
1.45
1.46
1.46
1.47
1.59
1.55
1.56
188
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
6.44
6.44
6.44
6.44
6.44
6.44
6.44
6.44
6.44
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
TFH1n2
TFH2n2
TFH3 n2
TFH4 n2
14000.9
10994.3
7002.2
4170.1
2978.6
14821.0
11279.7
7138.0
4194.4
949
949
949
949
949
949
949
949
949
964.78
963.76
962.01
959.57
957.97
964.41
963.34
961.55
958.94
959.46
966.62
965.45
963.46
960.67
958.91
966.8
965.47
963.36
960.29
0.00456
0.00449
0.004456
0.004418
0.004419
0.004637
0.004471
0.004488
0.004417
12.03
11.19
9.81
8.44
7.77
13.55
12.4
10.84
9.35
1588.26
1252.77
799.55
494.19
383.35
1455.17
1132.56
699.81
448.79
371.64
292.4
225.4
74.15
65.16
339.46
276.31
207.16
70.59
0.64
0.62
0.6
0.58
0.56
0.73
0.7
0.68
0.65
0.04
0.04
0.04
0.04
0.04
0.035
0.035
0.035
0.035
1.52
1.53
1.54
1.53
1.61
1.34
1.34
1.35
1.34
189
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
6.01
6.01
6.01
Max WS
Max WS
Max WS
TFH3n 5
TFH4 n 5
TFH5 n 5
6676.7
4099.7
2952.7
939
939
939
952.69
950.63
948.97
953.68
951.42
949.63
0.004445
0.00443
0.004417
8.26
7.11
6.55
962.39
576.75
450.7
251.79
80.23
70.74
0.49
0.47
0.46
0.05
0.05
0.05
1.83
1.83
1.82
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
5.58
5.58
5.58
5.58
5.58
5.58
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
TFH1n2
12222.3
10247.6
6830.8
4147.3
2970.1
12769.0
929
929
929
929
929
929
944.14
943.32
941.13
938.45
937.07
944.79
945.94
945.09
943.03
940
938.35
946.32
0.004648
0.004877
0.006582
0.006931
0.006801
0.002894
11.67
11.31
11.07
9.99
9.1
10.95
1367.06
1126.15
616.98
415.17
326.35
1591.05
316.37
275.43
83.03
67.83
60.56
372.28
0.64
0.64
0.72
0.71
0.69
0.58
0.04
0.04
0.04
0.04
0.04
0.035
1.38
1.39
1.4
1.38
1.45
1.21
190
Main Channel
Main Channel
Main Channel
5.31
5.31
5.31
5.31
5.31
5.31
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH5 n4
TFH1 n 5
TDH2 n 5
TFH3n 5
TFH4 n 5
TFH5 n 5
2953.5
10291.8
9088.9
6505.4
4069.2
2941.3
919
919
919
919
919
919
929.14
934.98
934.47
933.13
931.29
929.65
929.77
935.89
935.35
933.9
931.93
930.18
0.003334
0.003489
0.003463
0.00338
0.003388
0.003323
6.38
8.52
8.23
7.44
6.44
5.88
462.96
1663.02
1475.84
1074.9
646.88
500.35
71.72
380
344.65
268.25
196.86
74.62
0.44
0.45
0.44
0.43
0.41
0.4
0.045
0.05
0.05
0.05
0.05
0.05
1.53
1.68
1.68
1.7
1.69
1.67
Main Channel
Main Channel
Main Channel
4.74
4.74
4.74
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
10388.7
9229.9
6594.8
909
909
909
925.02
924.5
923.2
925.93
925.39
923.97
0.002231
0.002252
0.002142
8.53
8.31
7.44
1677.08
1487.33
1094.4
380
347.51
271.01
0.45
0.45
0.43
0.04
0.04
0.04
1.23
1.24
1.25
191
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
3.83
3.83
3.83
3.83
3.83
3.83
3.83
3.83
3.83
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH2 n4
TFH3 n4
TFH4n4
TFH5 n4
TFH1 n 5
TDH2 n 5
TFH3n 5
TFH4 n 5
TFH5 n 5
7569.3
6023.1
3893.3
2895.8
7528.3
7107.6
5823.7
3834.6
2872.3
899
899
899
899
899
899
899
899
899
913.63
912.75
911.04
909.48
914.04
913.8
913.02
911.4
909.97
914.48
913.54
911.67
910.03
914.75
914.49
913.67
911.95
910.44
0.002871
0.002842
0.002794
0.002791
0.002879
0.002877
0.002858
0.002852
0.002792
7.89
7.38
6.39
5.94
7.3
7.18
6.79
5.97
5.47
1215.53
977.3
609.63
487.77
1336.35
1263.88
1046.83
668.78
524.83
287.52
254.03
82.53
73.66
307.91
293.85
264.24
201.14
76.46
0.44
0.43
0.41
0.41
0.4
0.4
0.39
0.38
0.37
0.045
0.045
0.045
0.045
0.05
0.05
0.05
0.05
0.05
1.15
1.16
1.15
1.15
1.27
1.27
1.28
1.28
1.26
192
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
2.01
2.01
2.01
2.01
2.01
2.01
2.01
2.01
2.01
2.01
2.01
2.01
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH4 n3
TFH5 n 3
TFH1 n4
TFH2 n4
TFH3 n4
TFH4n4
TFH5 n4
TFH1 n 5
TDH2 n 5
TFH3n 5
TFH4 n 5
TFH5 n 5
3786.0
2834.9
6018.4
5793.2
5067.5
3617.7
2770.5
5551.1
5366.3
4815.2
3527.9
2742.0
879
879
879
879
879
879
879
879
879
879
879
879
891.53
890.13
893.97
893.82
893.33
892.07
890.98
894.09
893.96
893.54
892.37
891.38
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
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
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
Max WS
TFH1n1
TFH2 n1
TFH3 n1
TFH4 n1
TFH5 n1
TFH1n2
TFH2n2
TFH3 n2
TFH4 n2
TFH5 n2
TFH1 n3
TFH2 n3
TFH3 n3
TFH4 n3
TFH5 n 3
TFH1 n4
TFH2 n4
TFH3 n4
TFH4n4
TFH5 n4
TFH1 n 5
TDH2 n 5
TFH3n 5
TFH4 n 5
TFH5 n 5
5152.0
5018.4
4578.7
3494.6
2723.5
5634.7
5470.2
4906.0
3682.4
2777.5
5390.4
5225.8
4733.1
3580.5
2750.7
4751.6
4632.0
4283.3
3346.5
2670.9
4400.4
4311.4
4030.3
3226.7
2615.2
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
864
875.61
875.47
874.98
873.65
872.55
875.38
875.22
874.66
873.28
872.08
875.51
875.35
874.82
873.46
872.32
875.81
875.67
875.26
874.01
872.96
875.97
875.86
875.49
874.34
873.34
872.86
872.73
872.32
871.23
870.3
873.29
873.14
872.63
871.43
870.38
873.07
872.92
872.47
871.32
870.35
872.49
872.37
872.02
871.06
870.23
872.14
872.05
871.77
870.93
870.16
892.04
890.56
894.44
894.27
893.77
892.44
891.3
894.46
894.33
893.9
892.69
891.66
0.001467
0.001441
0.001535
0.001536
0.001495
0.001464
0.001447
0.001535
0.001517
0.0015
0.001468
0.001473
5.77
5.28
5.9
5.84
5.58
5.02
4.58
5.35
5.27
5.1
4.63
4.28
694.86
536.79
1316
1268.62
1131.33
811.88
604.44
1350.04
1311.6
1189.79
882.73
664.74
206.21
77.35
302.17
294.46
276.14
227.56
82.17
311.71
300.92
284.09
239.44
200.35
0.36
0.35
0.32
0.32
0.32
0.31
0.3
0.29
0.29
0.29
0.28
0.27
0.038
0.038
0.045
0.045
0.045
0.045
0.045
0.05
0.05
0.05
0.05
0.05
0.52
0.55
0.63
0.64
0.64
0.64
0.63
0.7
0.71
0.71
0.71
0.69
876.86
876.7
876.16
874.68
873.45
876.97
876.79
876.15
874.57
873.2
876.91
876.73
876.14
874.61
873.33
876.82
876.66
876.21
874.85
873.72
876.8
876.67
876.28
875.05
873.98
0.004518
0.004513
0.00452
0.004521
0.004518
0.004507
0.004514
0.004509
0.004517
0.004528
0.004514
0.004507
0.004518
0.004524
0.004514
0.004518
0.004519
0.004512
0.004516
0.004517
0.004513
0.004517
0.004514
0.004521
0.004521
8.96
8.9
8.71
8.15
7.65
10.12
10.06
9.79
9.13
8.49
9.51
9.43
9.22
8.61
8.04
8.04
7.99
7.83
7.38
6.98
7.28
7.25
7.13
6.75
6.42
574.81
563.76
525.74
428.68
355.92
556.54
543.92
501.24
403.3
327.02
566.66
553.91
513.55
415.73
342.01
591.02
579.72
546.77
453.71
382.72
604.14
594.7
565.36
477.73
407.6
80.09
79.3
76.53
68.95
62.99
78.79
77.87
74.69
66.83
60.62
79.51
78.6
75.62
67.87
61.86
81.23
80.44
78.08
70.98
65.11
82.15
81.49
79.42
72.88
67.19
0.59
0.59
0.59
0.58
0.57
0.67
0.67
0.67
0.65
0.64
0.63
0.63
0.62
0.61
0.6
0.53
0.52
0.52
0.51
0.51
0.47
0.47
0.47
0.46
0.46
0.04
0.04
0.04
0.04
0.04
0.035
0.035
0.035
0.035
0.035
0.038
0.038
0.038
0.038
0.038
0.045
0.045
0.045
0.045
0.045
0.05
0.05
0.05
0.05
0.05
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
193
Legend:
TFH1:
n1:
Slope orig (So).
bed slope 1 (S1)
bed slope 2 (S2)
bed slope 3 (S3)
breaching outflow hydrographs generated by assuming time to dam failure of 0.25hr in HEC-1, and used as inflow in HEC-RAS river routing,
Manning coefficients value provided by the dam owner. (n1 = 0.04)
existing downstream channel bed slope, provided by dam owner
equal to 0.95So
equal to 0.975So
equal to 1.025So
194
HEC-RAS Outputs:
Peak flows versus change in channel bed slopes for a given time to dam failure in hours
6.44
Max WS
bed slope 4
14623.6
947.33
963.16
965.13
0.004865
12.46
1606.45
375.82
0.66
0.04
1.49
Main Channel
Main Channel
Main Channel
Main Channel
Main Channel
6.01
6.01
6.01
6.01
6.01
Max WS
Max WS
Max WS
Max WS
Max WS
bed slope orig
bed slope 1
bed slope 2
bed slope 3
bed slope 4
13241.2
12676.2
12986.0
13332.3
13438.5
938.77
940.71
939.74
937.8
936.83
954.29
956.5
955.28
953.31
952.33
956.11
958
957.02
955.17
954.22
0.004593
0.003733
0.004381
0.004672
0.004768
11.88
10.88
11.62
11.98
12.09
1494.07
1589.38
1500.6
1491.51
1488.12
349.17
371.89
350.78
348.54
347.7
0.64
0.58
0.62
0.64
0.65
0.04
0.04
0.04
0.04
0.04
2.44
4.7
3.17
1.75
1.42
Main Channel
Main Channel
5.58
5.58
Max WS
Max WS
bed slope orig
bed slope 1
12408.2
11892.1
928.77
931.21
944.03
946.35
945.8
948.05
0.004548
0.004405
11.63
11.36
1404.34
1366.28
326.33
316.15
0.63
0.62
0.04
0.04
2.37
4.62
195
Main Channel
196
References
1. HEC-RAS, River Analysis System Computer software. Ver.4.0 Beta. November
2006, Davis, California: U.S. Army Corps Engineers, 2006.
2. HEC-1 – Hydrograph Package Computer Software. Version 4.1 June 1998, Davis,
California: U.S. Army Corps Engineers, 2006.
3. U.S. Army Corps of Engineer, HEC-RAS River Analysis System User’s Manual,
Davis, California: U.S. Army Corps of Engineers, Hydrologic Engineering
Center, 2006
4. U.S. Army Corps of Engineer, HEC-RAS River Analysis System Hydraulic
References, Davis, California: U.S. Army Corps of Engineers, Hydrologic
Engineering Center, 2006
5. U.S. Army Corps of Engineer, HEC-RAS River Analysis System Application
Guide ,Davis, California: U.S. Army Corps of Engineers, Hydrologic Engineering
Center, 2006
6. U.S. Army Corps of Engineer, HEC-1 Flood Hydrology Package User’s Manual,
Davis, California: U.S. Army Corps of Engineers, Hydrologic Engineering
Center, 1998.
7. Ram S. Gupta, 2nd edition (January 10, 2001). Hydrology and Hydraulic System,
Waveland Press.
8. Boss. Corporation (1991). BOSS DAMBRK User’s Manual. Boss Corporation,
Madison, Wisconsin.
9. Fread, D.L. (1991, August). Breach: An Erosion Model for Earthen Dam Failures.
National Weather Service, Silver Springs, Maryland.
10. Fread, D.L. and J.M. Lewis (1998, November). The NWS FLDWAV Model:
Theoretical Description / User Documentation. National Weather Service, Silver
Springs, Maryland.
11. Froelich, D.C. (1989, August). Embankment – Dam Breach Parameters.
Proceedings of the 1987 National Conference on Hydraulic Engineering (pp.
136-141). American Society of Civil Engineers, New York, New York.
197
12. Hwang, R.B. (2000, June). Sequence of Steps in Inundation Map Preparation.
Prepared for State of California, Governor’s Office of Emergency Services.
California State University, Sacramento, California.
13. Hydrological Engineering Center (1980, June). Flood Emergency Plans,
Guidelines for Corps Dams. Research Document No. 14, Davis, California.
14. Henderson, F, N., 1966. Open Channel Flow, he Macmillan Co., New York, NY.
15. Chow, V.T., 1964: Handbook of applied Hydrology, McGraw-Hill Co., New
York, NY.
16. National Research Council (1985). Safety of Dams, Flood and Earthquake
Criteria. Committee on Safety Criteria for Dams, Water science and Technology
Board, Commission on Engineering and Technical Systems. National Academy
Press. Washington, D.C.
17. U.S. Army Engineers (1960 and 1961) Floods Resulting from Suddenly Breached
Dams, Hydraulic Model Investigation. Miscellaneous Paper No. 2-374, Reports
No. 1 and 2, Corps of Engineers, Waterways Experiment Station. Vicksburg,
Mississippi.
18. U.S. Army Engineers (31 October 1997) Hydrologic Engineering Requirements
for Reservoirs, Engineering Manual (EM) 1110-1420, Department of the Army,
U.S. Army Crops of Engineers, Washington, DC.
19. Ventura County Watershed Protection District (September 2005) Debris and
Detention Basins Operations and Maintenance Manual, Ventura Co., CA.
20. U.S. Army Engineers (31 August 1994) Hydrologic Engineering Requirements
for Reservoirs, Engineering Manual (EM) 1110-2-1417, Department of the Army,
U.S. Army Crops of Engineers, Washington, DC.
21. Lang Creek Dam Breach and Inundation Mapping Review (May 2009), CSUS –
Office of Hydrological Studies.