Project details - Gila Project - Bureau of Reclamation

Full Irrigation Service	96,957 acres
Supplemental Service	0 acres
Temporary Irrigation Service	0 acres
Number of Irrigated Farms	570
Residential, Commercial, Industrial Lands	2,229 acres
Total Irrigable Lands	99,186 acres

Population Served:

Farm Population Served	1,584
Non-Farm Population Served	7,348
Total Population Served	8,932

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Area Irrigated and Crop Value

Year	Actual Area Irrigated (Acres)	Crop Value (Dollars)
1988	92,458	217,125,038
1989	92,922	154,480,299
1990	93,725	152,099,308
1991	94,017	195,769,931
1992	92,994	187,925,963
1993	90,174	209,497,321
1994	89,808	325,193,953
1995	91,282	311,922,624
1996	91,059	263,337,482
1997	91,677	386,966,798

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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

Normal	3.17 in
Maximum - 1989	6.75 in
Minimum - 1966	1.01 in
Yuma, Arizona 1961 - 1990

Temperature

Mean Annual	74.4 ?F
Daily Maximum - 07/28/1995	124 ?F
Daily Minimum - 02/18/1995	5 ?F
Yuma, Arizona 1948-1996
Growing Season
Yuma	348 days
Wellton-Mohawk	350 days
Elevation of irrigable area	150-340 ft

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

Average annual diversion, 1971 - 1980

841,000 acre-ft

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Project Water Quality

Facilities in Operation

Storage Facilities

Regulatory Facilities

Diversion Facilities

Carriage Facilities

Pumping Plants

Facilities in Operation

Diversion Dams	1
Canals	167.3 mi
Laterals	246 mi
Pumping Plants	25
Drains	14.2

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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

Location	From Imperial Dam generally south about 13 miles to the vicinity of Arizona Western College.
Construction period	1936-1939
Length	20.5 mi
Diversion capacity	2,200 cfs
Typical section in earth:
Bottom width	22 ft
Side slopes	2:1
Water depth	13.5 ft

Tunnel No. 1 - Gila Gravity Main Canal

Location	On the Main Canal about 5.7 miles south of Imperial Dam.
Construction period	1936-1938
Length	0.33 mi
Diversion capacity	2,058 cfs
Cross Section:	Horseshoe
Lining:	Concrete
Diameter	20 ft
Water depth	17.4 ft
Lining thickness	10-16 in

Tunnel No. 2 - Gila Gravity Main Canal

Location	On the Main Canal about 6.7 miles south of Imperial Dam.
Construction period	1937-1938
Length	0.78 mi
Diversion capacity	2,031 cfs
Cross Section:	Horseshoe
Lining:	Concrete
Diameter	20 ft
Water depth	17.4 ft
Lining thickness	10-16 in

Gila River Siphon - Gila Gravity Main Canal

Location	On the Main Canal at Gila River, about 10 miles south of Imperial Dam.
Construction period	1939
Description	Monolithic concrete pipe siphon.
Length	0.39 mi
Capacity	2,200 cfs
Diameter	19.5 ft
Wall thickness	20-25 in

`A` Canal

Location	From the end of the Gila Gravity Main Canal near Yuma Mesa Pumping Plant southwest.
Construction period	1941 - 1942
Length	13.6 mi
Diversion capacity	640 cfs
Typical section, concrete-lined:
Bottom width	8 ft
Side slopes	1.5:1
Water depth	10.1 ft
Lining thickness	3 in

`B` Canal

Location	From the `A` Canal about 2 miles downstream from Yuma Mesa Pumping Plant west to the vicinity of Yuma, Arizona.
Construction period	1941 - 1942
Length	9.3 mi
Diversion capacity	280 cfs
Typical section, concrete-lined:
Bottom width	8 ft
Side slopes	1.5:1
Water depth	6.3 ft
Lining thickness	3 in

Wellton-Mohawk Canal

Location	From 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 period	1949 - 1951
Length	18.5 mi
Diversion capacity	1,300 cfs
Typical section, concrete-lined:
Bottom width	16 ft
Side slopes	1.25:1
Water depth	12.8 ft
Lining thickness	3.5 in
Length	6.5 mi
Typical section, earth lined:
Bottom width	44 ft
Side slopes	2:1
Water depth	8.8 ft
Lining thickness:
On bottom	2 ft
On sides	6 ft
Length	10.1 mi

Southern Pacific Railroad Tunnel

Location	On the Wellton-Mohawk Canal under the Southern Pacific Railroad, 0.3 mile upstream from Pumping Plant No. 2.
Construction period	1950
Length	224 ft
Diversion capacity	1,200 cfs
Cross section:	Horseshoe
Lining:	Concrete
Diameter	15.25 ft
Lining thickness	10 - 16 in

Dome Canal

Location	From 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 period	1953 - 1954
Length	13 mi
Diversion capacity	220 cfs
Typical section, concrete-lined:
Bottom width	7 ft
Side slopes	1.25:1
Water depth	6.5 ft
Lining thickness	2.5 in

Wellton Canal

Location	From the end of the Wellton-Mohawk Canal about 10 miles northeast to a point near the Gila River.
Construction period	1951 - 1953
Length	19.9 mi
Diversion capacity	300 cfs
Typical section, concrete-lined:
Bottom width	7 ft
Side slopes	1.25:1
Water depth	6.5 ft
Lining thickness	2.5 in

Mohawk Canal

Location	From the end of the Wellton-Mohawk Canal generally northeast along the south side of Gila River, then across the river and westward.
Construction period	1950 - 1953
Length	46.8 mi
Diversion capacity	900 cfs
Typical section, concrete-lined:
Bottom width	12 ft
Side slopes	1.25:1
Water depth	11.3 ft
Lining thickness	3 in

Texas Hill Canal

Location	From the Mohawk Canal north of the Mohawk Mountains, and generally east.
Construction period	1955 - 1956
Length	9.8 mi
Diversion capacity	125 cfs
Typical section, concrete-lined:
Bottom width	5 ft
Side slopes	1.25:1
Water depth	5 ft
Lining thickness	2.5 in

South Gila Canal

Location	From the Gila Gravity Main Canal, 0.4 mile upstream of the Yuma Mesa Pumping Plant.
Construction period	1963 - 1965
Length	7.7 mi
Diversion capacity	110 cfs
Typical section, concrete-lined:
Bottom width	5 ft
Side slopes	1.5:1
Water depth	4.2 ft
Lining thickness	2 in

North Gila Canal

Location	From Gila Gravity Main Canal, 0.3 mile downstream of Tunnel No. 2.
Construction period	1909 - 1912
Length	10.9 mi
Diversion capacity	250 cfs
Typical section:
Bottom width	42 ft
Side slopes	2:1
Water depth	3 ft

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

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Pumping Plants

Designation	Number of units	Total capacity, cfs	Total dynamic head, ft	Total horsepower
Wellton-Mohawk Division:
Wellton-Mohawk No. 1	9	1,300	35	7,500
Wellton-Mohawk No. 2	8	1,200	90	17,250
Wellton-Mohawk No. 3	7	900	60	8,750
Unit 1, Dome distribution system: 5 plants	10	215	4-21.5	515
Texas Hill distribution system: 3 plants	7	210	3.5-21	535
Ralph`s Mill area, Mohawk Laterals: 5 plants	13	240	12-45	1,115
Yuma Mesa Division:
Plant No. 1, Gravity Main Canal	4	968	50-54	7,100
Unit 1, 6 plants	6	98	2.3-4.3	65
South Gila Unit, 5 plants	10	69	4.0-6.0	90

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Last updated: Jan 30, 2012