Sly Park Dam


Sly Park Dam and Jenkinson Reservoir were transferred to the El Dorado Irrigation District in 2003. 

It is no longer a federal Bureau of Reclamation facility. 

RegionFacilities in Mid-Pacific | Mid-Pacific Home Page
CountyEl Dorado
ProjectCVP-Folsom Sly Park
Dam Type
ReservoirJenkinson Lake
WatercourseSly Park Creek
Original Construction1953-1955
Modified Construction
National ID NumberCA10187
Hydrologic Unit Code

Structural Height190.0 ft
Hydraulic Height (Normal Operating Depth at Dam)170.0 ft
Top Parapet (Elevation)
Spillway Crest Elevation3471.0 ft
Crest Elevation3482.0 ft
Crest Length760.0 ft
Crest Width
Base Width
Volume of Dam Construction Materials
Streambed at Dam Axis
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)3471.0 ft
Top of Active Conservation Pool (Elevation)
Top of Inactive Conservation Pool (Elevation)
Top of Dead Storage Pool (Elevation)

Hydraulics & Hydrology
Total Water Storage at Elevation
Maximum Water Surface Elevation
Normal Water Surface Elevation3471.0 ft
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation6700 cfs at 3476.0 ft
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation250 cfs at 3476.0 ft
Diversion Capacity at Elevation
Drainage Area47.0 sq mi
Hydrometeorological Report (HMR)HMR
Probable Maximum Flood (PMF) Report

Contact Information
TitleArea Office Manager
OrganizationCentral California Area Office
Address7794 Folsom Dam Road
CityFolsom, CA 95630
Phone (Office)916 989-7200
OrganizationEl Dorado Irrigation District
Address2890 Mosquito Road
CityPlacerville, CA 95667
Phone (Fax)530 622-1195
Phone (Office)530 622-4513

Last updated: Oct 12, 2011