Crystal Springs Dam

For the dam in Arkansas, see National Register of Historic Places listings in Arkansas.

Crystal Springs Dam
Official name	Lower Crystal Springs Dam
Location	San Mateo County, California
Coordinates	37°31′43″N 122°21′44″W / 37.5285°N 122.3622°W / 37.5285; -122.3622Coordinates: 37°31′43″N 122°21′44″W / 37.5285°N 122.3622°W / 37.5285; -122.3622
Opening date	1888
Dam and spillways
Height	140 ft (43 m)
Length	600 ft (180 m)
Base width	40 ft (12 m)
Impounds	San Mateo Creek
Reservoir
Creates	Lower Crystal Springs Reservoir
Capacity	57,910 acre·ft (71,430,000 m3)
Catchment area	29.4 sq mi (76 km2)
Surface area	1,323 acres (5.35 km2)

Crystal Springs Dam is a gravity dam constructed across the San Mateo Creek, impounding water to form the Lower Crystal Springs Reservoir in San Mateo County, California.

The structure was completed in 1888, and has survived both the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake — despite its location directly on the San Andreas Fault.

The dam has a road running over it and forms the trailhead of the popular Sawyer Camp Trail.

Currently the dam is undergoing renovations. The dam is being raised to increase the water storage capacity of the reservoir as well as other changes. The roadway on top of the dam is closed.

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  Lower Crystal Springs Dam

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  Lower Crystal Springs Reservoir

References

• Department of Water Resources (2009). "Station Meta Data: Lower Crystal Springs Dam (CRY)". California Data Exchange Center. State of California. http://cdec.water.ca.gov/cgi-progs/profile?s=CRY&type=dam. Retrieved 2009-04-01. 
• "Crystal Spring Dam". Geographic Names Information System, U.S. Geological Survey. 19-Jan-1981. http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:233747. Retrieved 2009-06-11. 
• U.S. Geological Survey (24 November 2003). "Crystal Springs Reservoir". U.S. Department of the Interior. http://3dparks.wr.usgs.gov/3Dbayarea/html/CrystalSprings.htm. Retrieved 2009-04-01. ^{[dead link]}
• Ron Horii (1 October 2003). "Bay Area Biking: Crystal Springs Trails". Bay Area Back Page. http://pages.prodigy.net/rhorii/xtalsprg.htm. Retrieved 2009-04-01. 

Further reading

• Postel, Mitchell (1994). San Mateo: A Centennial History. San Francisco: Scottwall Associates, Publishers. ISBN 0942087089. 

External links

• San Francisco Public Utilities Commission
• SFPUC Project Description
• San Mateo County History Museum