Florence Lake Dam

Florence Lake Dam is a concrete multiple-arch dam on the South Fork of the San Joaquin River, in Fresno County, California in the United States. The 171-foot (52 m) high dam was designed by John S. Eastwood and completed in 1926 (two years after Eastwood's death) as part of the Big Creek Hydroelectric Project, an extensive hydroelectric system in the central Sierra Nevada. Its reservoir, Florence Lake, provides for water diversion to Huntington Lake and Big Creek Powerhouses Nos. 1–3 via the 13-mile (21 km) Ward Tunnel.

CountryUnited States

Coordinates37°16′21″N 118°57′59″W

Openingdate1926; 100 years ago (1926)

OwnerSouthern California Edison

Quick facts Country, Coordinates ...

Florence Lake Dam
Florence Lake Dam Location of Florence Lake Dam in California
Country	United States
Coordinates	37°16′21″N 118°57′59″W
Opening date	1926; 100 years ago (1926)
Owner	Southern California Edison
Dam and spillways
Type of dam	Concrete multiple-arch
Impounds	South Fork San Joaquin River
Height	154 ft (47 m)[1]
Length	3,156 ft (962 m)[1]
Reservoir
Creates	Florence Lake
Total capacity	64,600 acre⋅ft (79,700,000 m3)[1]
Catchment area	171 mi2 (440 km2)[1]
Surface area	296 acres (120 ha)[1]

Close