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Weber Basin Project
Weber Basin Project | Project History | Project Data | Contact Information

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



Project # 526


Land Areas (1992)
Irrigable area:
Full Irrigation Service0 acres
Supplemental Service42,488 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms1,038
Residential, Commercial, Industrial Lands48,013 acres
Total Irrigable Lands90,501 acres


Population Served:
Farm Population Served4,540
Non-Farm Population Served500,686
Total Population Served505,226

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

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Project Water Supply

Current Conditions

Reservoir Storage

Streamflow Forecast Map

Spring and Summer (NRCS)
Snowpack Information

Mountain Snowpack Maps for Great Basin and California

Drought Index

Palmer Drought Index Map

Annual Precipitation

Normal17.05 in
Maximum - 198334.31 in
Minimum - 19668.25 in
Ogden, Utah 1961-1990 


Mean Annual50.8 ?F
Daily Maximum - 07/21/1931106 ?F
Daily Minimum - 01/21/1937-26 ?F
Ogden, Utah, 1928-1996 
Growing Season87-160 days
Elevation of irrigable area4,215 - 5,200 ft


Weber River
Drainage area at Wanship Dam339 mi2
Annual discharge 


Ogden River
Drainage area at Pineview Dam298 mi2
Annual discharge 

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Project Water Quality

Lower Weber

Upper Weber

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Facilities in Operation
Storage Dams7
Diversion Dams3
Canals121.8 mi
Tunnels3.3 mi
Laterals143.3 mi
Drains34.5 mi
Pumping Plants11

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Storage Facilities

Arthus V. Watkins (Willard) Dam

Causey Dam

East Canyon Dam

Echo Dam

Lost Creek Dam

Pineview Dam

Wanship Dam

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Slaterville Diversion Dam

Stoddard Diversion Dam

Ogden Valley Diversion Dam

Type:Gated spillway.
LocationOn South Fork of the Ogden River, about 7 miles upstream from Pineview Dam.
Year Completed1964
Hydraulic height6 ft
Crest length150 ft
Crest elevation5,090.8 ft
Volume (concrete)168 yd3
Sluiceway:One 8- by 5-ft radial gate
Left:One 36- by 24-in gate.
Right:Two 48- by 36-in gates
Diversion Capacity 
Left 20 cfs
Right 80 cfs

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Carriage Facilities
Willard Canal
LocationFrom Arthur V. Watkins Dam southerly to Slaterville Diversion Dam.
Construction period1961-1964
Length10.7 mi
Diversion Capacity1,050 cfs
Typical section earth lined: 
Bottom width30 ft
Side slopes2:1
Water depth9 ft


Layton Canal
LocationFrom the Weber River at the Layton Pumping Plant near Slaterville Diversion Dam southward about 18 miles.
Construction period1963-1964
Length9 mi
Diversion Capacity180 cfs
Typical section earth lined: 
Bottom width10 ft
Side slopes2:1
Water depth4.83 ft


Weber Aqueduct
LocationGenerally northwest from outlet of Gateway Tunnel to south outskirts of Ogden, Utah.
Construction period1955-1956
DescriptionPrecast concrete pipe
Length4.2 mi
Diameter48 and 42 in
Capacity80 to 65 cfs


Davis Aqueduct
LocationFrom end of Gateway Tunnel to 21.6 miles south to North Salt Lake, Utah.
Construction period1954-1957
DescriptionPrecast concrete pipe
Length21.6 mi
Diameter84 and 21 in
Capacity355 to 30 cfs


Gateway Canal
LocationFrom Stoddard Diversion Dam 8.5 miles westward to point about 13 miles southeast of Ogden, Utah..
Construction period1954-1956
Length8.5 mi
Diversion Capacity700 cfs
Typical section earth lined: 
Bottom width10 ft
Side slopes1.5:1
Water depth6.9 ft
Lining thickness4 in


Gateway Tunnel
LocationFrom end of Gateway Canal 3.25 miles west to a point about 7 miles south of Ogden, Utah
Construction period1953-1954
Length3.25 mi
Capacity435 cfs
Cross section:Horseshoe
Diameter9.3 ft
Thickness5 to 8.5 in

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Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower
South Davis414225-5801,025
East Bountiful413225-475775
East Layton24175150
East Sand Ridge28107160
Val Verda25253225
West Sand Ridge213155325
Weber Aqueduct417225-365750
Willard No. 13500463,000
Willard No. 2330017800
Layton No. 14277.5281,050
Layton No. 261503437,500

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Power Facilities

Gateway Powerplant

Wanship Powerplant

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Last updated: May 17, 2011