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Yuma Auxiliary Project
Yuma Auxiliary Project | Project History | Project Data | Contact Information

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


Project # 798

Land Areas (1992)
Irrigable area:
Full Irrigation Service3,135 acres
Supplemental Service0 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms313
Residential, Commercial, Industrial Lands265 acres
Total Irrigable Lands3,400 acres

Population Served:
Farm Population Served370
Non-Farm Population Served700
Total Population Served1,070

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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

Streamflow Forecast Map

Spring and Summer (NRCS)
Snowpack Information

Mountain Snowpack Maps for Colorado River Basin
Drought Index

Palmer Drought Index Map
Explanation of Palmer Drought Severity Index (Text)

Historic Conditions

Annual Precipitation
Normal3.17 in
Maximum - 19896.75 in
Minimum - 19661.01 in
Yuma, Arizona 1961-1990

Mean Annual74.4 ?F
Daily Maximum - 07/28/1995124 ?F
Daily Minimum - 02/18/19955 ?F
Yuma, Arizona 1948-1996
Growing Season365 days
Elevation of irrigable area170-190 ft

Colorado River - See Boulder Canyon Project, All-American Canal System (http://www.usbr.gov/dataweb/html/lcallwatdata.html) for streamflow data

Water for the project is furnished through Gila Project carriage system.

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Project Water Quality

Imperial Reservoir

Lower Colorado

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Facilities in Operation
Carriage Facilities
Pumping Plants


Facilities in Operation
Canals3.6 mi
Laterals18.1 mi
Pumping Plants1

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Carriage Facilities
Unit `B` Main Canal
LocationSouth from end of Gila Project A-8.9 lateral, about 5 miles south of Yuma, Arizona
Construction periodRehabilitated and extended by Reclamation in 1955-1956
Length3.6 mi
Diversion capacity100 cfs
Typical section, concrete lined:
Bottom width5 ft
Side slopes1.25:1
Water depth4.5 ft
Lining thickness2 in

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Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower

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Last updated: Apr 12, 2010