Reservoir Levels Weather Hydrology

Henshaw Reservoir is located in San Diego County, California, and was constructed in 1923 by the San Diego Flume Company. The reservoir is fed by the Santa Rosa Creek and the San Luis Rey River, which are important sources of water for agricultural use in the region. Henshaw Reservoir also stores water for recreational purposes, including fishing and boating. The hydrology of the area is influenced by the seasonal precipitation, and the snowpack in the mountains, which melt and run into the reservoir. The surface flow is monitored by the San Diego County Water Authority and the California Department of Water Resources. The reservoir also serves as a habitat for several species of fish and bird.

July 19, 2024







24hr Change None%
Percent of Normal None%
Nid_Height 123
Hydraulic_Height 73
Drainage_Area 207
Year_Completed 1923
Dam_Height 123
Primary_Dam_Type Earth
Surface_Area 2000
Nid_Storage 50000
River_Or_Stream San Luis Rey Rv
Dam_Length 650
Hazard_Potential High

Regional Streamflow


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second

Explore the Interactive Map

View recreational hotspots like fishing, camping, and parks, alongside climate-related data such as river levels, snowpack, and weather forecasts. Enjoy 3D mapping for an immersive experience, and switch to satellite view for a detailed look at your favorite spots. Simply click, explore, and discover nature like never before!

5-Day Weather Forecast

16-Day Weather Forecast

Explore Nearby Places

Grout Bay Park

Grout Bay Park is located in the state of California and is a popular destination for visitors due to its scenic beauty and recreational opportunities. The park offers beautiful views of the San Bernardino Mountains and Big Bear Lake, making it an ideal location for hiking, picnicking, and camping. One of the main attractions of Grout Bay Park is the Grout Bay Marina, which offers boat rentals, fishing opportunities, and other water sports activities. The park also has several hiking trails, including the Alpine Pedal Path, which is a 3.5-mile trail that runs along the shore of Big Bear Lake. ...