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Solano Project
Solano Project | Project History | Project Data | Contact Information

Project Data
Land Areas (1992)
Area Irrigated and Crop Value


Project # 413

Land Areas (1992)
Irrigable area:
Full Irrigation Service0 acres
Supplemental Service70,307 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms925
Residential, Commercial, Industrial Lands1,138 acres
Total Irrigable Lands71,445 acres

Population Served:
Farm Population Served3,850
Non-Farm Population Served300
Total Population Served4,150

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)

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Project Water Supply
Project Water Quality


Project Water Supply

Current Conditions

Reservoir Storage

California Data Exchange Center Reservoir Levels for Lake Berryessa


Putah Creek near Winters, California (USGS)
Streamflow Forecast Map

Spring and Summer (NRCS)
Snowpack Information

Mountain Snowpack Maps for Great Basin and California
Drought Index

Palmer Drought Index Map
Explanation of Palmer Drought Severity Index

Historic Conditions

Annual Precipitation
Normal18.13 in
Maximum - 198338.15 in
Minimum - 19765.62 in
Davis, California 1961-1990

Mean Annual60.1 ?F
Daily Maximum - 07/17/1925116 ?F
Daily Minimum - 02/10/19814 ?F
Davis, California 1917-1997
Growing Season244 days
Elevation of irrigable area75 ft

Putah Creek
Drainage area at Monticello Dam576 mi2
Annual discharge

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Project Water Quality

Lower Sacramento

Upper Putah

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Facilities in Operation
Storage Facilities
Diversion Facilities
Carriage Facilities


Facilities in Operation
Storage Dams2
Diversion Dams1
Canals32.3 mi
Pipelines3.4 mi

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Storage Facilities

Monticello Dam

Terminal Dam

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Diversion Facilities
Type:Concrete ogee-gated weir, embankment wing
LocationOn Putah Creek, 18 miles northeast of Napa, California
Year Completed1957
Structural height29 ft
Hydraulic height10 ft
Crest length910 ft
Crest elevation136.3 ft
Volume25,000 yd3
Diversion capacity956 cfs

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Carriage Facilities
Putah South Canal
LocationFrom Putah Diversion Dam generally southwest to vicinity of Cordelia, California.
Construction period1956-1959
Length32.3 mi
Diversion capacity956 cfs
Typical section - initial reach
Bottom width12 ft
Side slopes1.5:1
Water depth10.3 ft

Green Valley Conduit
LocationExtends from the Putah South Canal 8,400 ft into Green Valley, southwest of Fairfield, California.
Construction period1958-1959
Length2.4 mi
Diversion capacity14 cfs
Type:Precast concrete
Diameter12-27 in

Putah South Pipeline
LocationAn integral part of the Putah South Canal which extends from Putah Diversion Dam generally southwest to vicinity of Cordelia, California
Construction period1958-1959
Length1 mi
Diversion capacity180 cfs
Type:Precast reinforced concrete
Diameter72 in

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Last updated: May 17, 2011