SW1220801_Stormwater Report_20230214 (4)

Forebay
Stage -Storage Table
Bottom of Forebay = 990.0
Bottom of Sediment Storage = 991.5
Top of Forebay (spillway) = 994.0
*Area below sediment storage elevation
omitted from calculations
Stage
Contour Elevation
Contour Area
(ft)
(ft)
(sf)
Incremental Storage (cf)
Total Storage (cf)
0
991.5
70
0
0
0.5
992.0
112
45
45
1.5
993.0
194
151
196
2.5
994.0
420
300
496
Main Pool
Stage -Storage Table
Bottom of Main Pool = 989.0
Bottom of Sediment Storage = 989.5
Top of Main Pool = 994.0
*Area below sediment storage elevation
omitted from calculations
Stage
Contour Elevation
Contour Area
(ft)
(ft)
(sf)
Incremental Storage (cf)
Total Storage (cf)
0
989.5
130
0
0
0.5
990.0
196
81
81
1.5
991.0
342
266
347
2.5
992.0
572
431
778
3.5
993.0
733
627
1405
4.5
994.0
1642
1157
2562
Temporary Pool
Stage -Storage Table
Permanent Pool = 994.0
Emergency Spillway = 997.0
Top of Dam = 998.0
Stage
Contour Elevation
Contour Area
(ft)
(ft)
(sf)
Incremental Storage (cf)
Total Storage (cf)
0
994.0
2062
0
0
1.0
995.0
2760
2402
2402
2.0
996.0
3514
3129
5531
3.0
997.0
4345
3922
9453
4.0
998.0
5155
4744
14197