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

  

Project # 50

Land Areas (1992)
Irrigable area:
Full Irrigation Service96,957 acres
Supplemental Service0 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms570
Residential, Commercial, Industrial Lands2,229 acres
Total Irrigable Lands99,186 acres

Population Served:
Farm Population Served1,584
Non-Farm Population Served7,348
Total Population Served8,932

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
198892,458217,125,038
198992,922154,480,299
199093,725152,099,308
199194,017195,769,931
199292,994187,925,963
199390,174209,497,321
199489,808325,193,953
199591,282311,922,624
199691,059263,337,482
199791,677386,966,798

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Project Water Supply
Project Water Quality

  

Project Water Supply

Current Conditions

Weather Conditions (NOAA)
Precipitation
Streamflow

Yuma Area Office (Arizona) Flow Data (Lower Colorado River)
Streamflow Forecast Map

Spring and Summer (NRCS)
Snowpack Information

Mountain Snowpack Maps for Colorado River Basin (NRCS)
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

Temperature
Mean Annual74.4 ?F
Daily Maximum - 07/28/1995124 ?F
Daily Minimum - 02/18/19955 ?F
Yuma, Arizona 1948-1996
Growing Season
Yuma348 days
Wellton-Mohawk350 days
Elevation of irrigable area150-340 ft

Colorado River - See Boulder Canyon Project - All American Canal System

Average annual diversion, 1971 - 1980841,000 acre-ft

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Project Water Quality

Lower Colorado

Lower Gila

Yuma Desert

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Facilities in Operation
Storage Facilities
Regulatory Facilities
Diversion Facilities
Carriage Facilities
Pumping Plants

  

Facilities in Operation
Facilities in Operation
Diversion Dams1
Canals167.3 mi
Laterals246 mi
Pumping Plants25
Drains14.2

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Storage Facilities

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Regulatory Facilities

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Diversion Facilities

Imperial Dam

See Boulder Canyon Project - All American Canal System

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Carriage Facilities
Gila Gravity Main Canal
LocationFrom Imperial Dam generally south about 13 miles to the vicinity of Arizona Western College.
Construction period1936-1939
Length20.5 mi
Diversion capacity2,200 cfs
Typical section in earth:
Bottom width22 ft
Side slopes2:1
Water depth13.5 ft

Tunnel No. 1 - Gila Gravity Main Canal
LocationOn the Main Canal about 5.7 miles south of Imperial Dam.
Construction period1936-1938
Length0.33 mi
Diversion capacity2,058 cfs
Cross Section:Horseshoe
Lining:Concrete
Diameter20 ft
Water depth17.4 ft
Lining thickness10-16 in

Tunnel No. 2 - Gila Gravity Main Canal
LocationOn the Main Canal about 6.7 miles south of Imperial Dam.
Construction period1937-1938
Length0.78 mi
Diversion capacity2,031 cfs
Cross Section:Horseshoe
Lining:Concrete
Diameter20 ft
Water depth17.4 ft
Lining thickness10-16 in

Gila River Siphon - Gila Gravity Main Canal
LocationOn the Main Canal at Gila River, about 10 miles south of Imperial Dam.
Construction period1939
DescriptionMonolithic concrete pipe siphon.
Length0.39 mi
Capacity2,200 cfs
Diameter19.5 ft
Wall thickness20-25 in

`A` Canal
LocationFrom the end of the Gila Gravity Main Canal near Yuma Mesa Pumping Plant southwest.
Construction period1941 - 1942
Length13.6 mi
Diversion capacity640 cfs
Typical section, concrete-lined:
Bottom width8 ft
Side slopes1.5:1
Water depth10.1 ft
Lining thickness3 in

`B` Canal
LocationFrom the `A` Canal about 2 miles downstream from Yuma Mesa Pumping Plant west to the vicinity of Yuma, Arizona.
Construction period1941 - 1942
Length9.3 mi
Diversion capacity280 cfs
Typical section, concrete-lined:
Bottom width8 ft
Side slopes1.5:1
Water depth6.3 ft
Lining thickness3 in

Wellton-Mohawk Canal
LocationFrom the Gila Gravity Main Canal near the Gila River Siphon generally southeast along south side of Gila River to Pumping Plant No. 3 about 5 miles southwest of Wellton, Arizona.
Construction period1949 - 1951
Length18.5 mi
Diversion capacity1,300 cfs
Typical section, concrete-lined:
Bottom width16 ft
Side slopes1.25:1
Water depth12.8 ft
Lining thickness3.5 in
Length6.5 mi
Typical section, earth lined:
Bottom width44 ft
Side slopes2:1
Water depth8.8 ft
Lining thickness:
On bottom2 ft
On sides6 ft
Length10.1 mi

Southern Pacific Railroad Tunnel
LocationOn the Wellton-Mohawk Canal under the Southern Pacific Railroad, 0.3 mile upstream from Pumping Plant No. 2.
Construction period1950
Length224 ft
Diversion capacity1,200 cfs
Cross section:Horseshoe
Lining:Concrete
Diameter15.25 ft
Lining thickness10 - 16 in

Dome Canal
LocationFrom a point on the Wellton-Mohawk Canal near Ligurta, Arizona, across the Gila River and generally northwest about 8 miles along the Gila River.
Construction period1953 - 1954
Length13 mi
Diversion capacity220 cfs
Typical section, concrete-lined:
Bottom width7 ft
Side slopes1.25:1
Water depth6.5 ft
Lining thickness2.5 in

Wellton Canal
LocationFrom the end of the Wellton-Mohawk Canal about 10 miles northeast to a point near the Gila River.
Construction period1951 - 1953
Length19.9 mi
Diversion capacity300 cfs
Typical section, concrete-lined:
Bottom width7 ft
Side slopes1.25:1
Water depth6.5 ft
Lining thickness2.5 in

Mohawk Canal
LocationFrom the end of the Wellton-Mohawk Canal generally northeast along the south side of Gila River, then across the river and westward.
Construction period1950 - 1953
Length46.8 mi
Diversion capacity900 cfs
Typical section, concrete-lined:
Bottom width12 ft
Side slopes1.25:1
Water depth11.3 ft
Lining thickness3 in

Texas Hill Canal
LocationFrom the Mohawk Canal north of the Mohawk Mountains, and generally east.
Construction period1955 - 1956
Length9.8 mi
Diversion capacity125 cfs
Typical section, concrete-lined:
Bottom width5 ft
Side slopes1.25:1
Water depth5 ft
Lining thickness2.5 in

South Gila Canal
LocationFrom the Gila Gravity Main Canal, 0.4 mile upstream of the Yuma Mesa Pumping Plant.
Construction period1963 - 1965
Length7.7 mi
Diversion capacity110 cfs
Typical section, concrete-lined:
Bottom width5 ft
Side slopes1.5:1
Water depth4.2 ft
Lining thickness2 in

North Gila Canal
LocationFrom Gila Gravity Main Canal, 0.3 mile downstream of Tunnel No. 2.
Construction period1909 - 1912
Length10.9 mi
Diversion capacity250 cfs
Typical section:
Bottom width42 ft
Side slopes2:1
Water depth3 ft

North Gila Canal - Constructed by the North Gila Valley Irrigation District 1909-1912

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Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower
Wellton-Mohawk Division:
Wellton-Mohawk No. 191,300357,500
Wellton-Mohawk No. 281,2009017,250
Wellton-Mohawk No. 37900608,750
Unit 1, Dome distribution system: 5 plants102154-21.5515
Texas Hill distribution system: 3 plants72103.5-21535
Ralph`s Mill area, Mohawk Laterals: 5 plants1324012-451,115
Yuma Mesa Division:
Plant No. 1, Gravity Main Canal496850-547,100
Unit 1, 6 plants6982.3-4.365
South Gila Unit, 5 plants10694.0-6.090

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Last updated: Jan 30, 2012