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General
Vicinity Map
Region (Map) ........................ Mid Pacific
State (Map) ............................... California
County ................................... Sacramento
Project ................... CVP-Auburn-Folsom
Dam type ....... Straight Concrete gravity
Location ... 20 mi NE of Sacramento, CA
Watercourse .................. American River
Reservoir ............................. Folsom Lake
Original construction .............. 1948-1956
Modified ............................................ 1997
National ID Number ................. CA10148
Hydrologic Unit Code ............. |
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Hydraulics
Total storage to El. 466 ........................... 1,010,000 acre-ft
Service spillway Capacity at El. 475.4 ............ 567,000 cfs
Outlet works Capacity at El. 466 ................. 30,960 cfs
Safe channel capacity ........... 115,000 cfs |
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Dimensions
Crest Elevation ................................ 480.5 ft
Top of Parapet Elevation ............... 484.0 ft
Structural Height ................................ 340 ft
Hydraulic Height ............................. 275.4 ft
Crest Length .................................... 1,400 ft
Crest Width ..................................... 36.25 ft
Base Width ......................................... 270 ft
Volume of Concrete .......... 1,170,000 cu yd |
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Hydrology
Drainage area ............................ 1,875 sq mi
Hydrometeorological Report ....... HMR 58
PMF ................. 1996 General rain on snow
Volume ... 2,762,000 acre-ft over 200 hours
Peak inflow ................................ 681,000 cfs
Maximum water surface .................. 480.0 ft |
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