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Uncompahgre Project
Uncompahgre Project | Project History | Project Data | Contact Information

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

 

  

Project # 31

 

Land Areas (1992)
Irrigable area:
Full Irrigation Service73,982 acres
Supplemental Service0 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms2,632
Residential, Commercial, Industrial Lands2,315 acres
Total Irrigable Lands76,297 acres

 

Population Served:
Farm Population Served12,960
Non-Farm Population Served25,975
Total Population Served38,935

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
198367,98428,469,569
198466,16825,459,642
198566,51721,751,231
198663,45023,269,738
198761,60218,469,757
198861,31124,202,737
198967,15829,436,727
199062,52936,299,904
199163,27227,740,191
199263,03337,678,872

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Project Water Supply

Current Conditions


Streamflow

Uncompahgre River at Colona, Colorado (USGS)
Gunnison River below Gunnison Tunnel, Colorado (USGS)

Streamflow Forecast Map

Spring and Summer (NRCS)

Snowpack Information

Mountain Snowpack Maps for Colorado River Basin
Drought Index

Palmer Drouht Index Map

Annual Precipitation
Normal9.68 in
Maximum - 1986 14.98 in
Minimum - 19895.58 in
Montrose, Colorado 1961-1990 

 

Temperature
Mean Annual48.8 ?F
Daily Maximum - 08/14/1947106 ?F
Daily Minimum - 02/13/1905-27 ?F
Montrose, Colorado 1900-1997 
Growing Season150 days
Elevation of irrigable area4,950 - 6,400 ft

 

Uncompahgre River
Drainage area at Colona, Colorado437 mi2
Annual discharge 
Maximumacre-ft
Minimumacre-ft
Averageacre-ft

 

Gunnison River
Drainage area at Gunnison Tunnel3,980 mi2
Annual discharge 
Maximumacre-ft
Minimumacre-ft
Averageacre-ft

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Project Water Quality

East - Taylor

Uncompahgre

Upper Gunnison

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Facilities in Operation
Storage Dams1
Diversion Dams7
Canals128 mi
Laterals438 mi
Drains216 mi

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Storage Facilities

Taylor Park Dam

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Diversion Facilities

Ironstone Diversion Dam

Gunnison Diversion Dam

East Canal Diversion Dam
TypeConcrete weir, embankment wing
LocationOn the Uncompahgre River, about 10 miles northeast of Montrose, Colorado
Year CompletedConstructed by private interests in 1915, reconstructed in 1940.
Dimensions: 
Structural height16 ft
Hydraulic height8 ft
Weir crest Length75 ft
Length764 ft
Crest elevation5,403.0 ft
Volume1,000 yd3
Headworks:Timber structure with ten 3 ft by 4 ft wooden gates with 24-in hand wheel screw-type hoists.
Diversion capacity330 cfs

 

Loutzenheizer Diversion Dam
TypeConcrete weir and apron with radial gates.
LocationOn the Uncompahgre River, about 2 miles south of Montrose, Colorado
Year Completed1883. Acquired by Reclamation in 1908, supplemental construction in 1908 and 1911, rehabilitated in 1974.
Dimensions: 
Structural height24 ft
Hydraulic height9 ft
Weir crest Length114 ft
Volume400 yd3
Headworks:Concrete structure with radial gate controls and sluiceway operated by an electric motor.
Diversion capacity120 cfs

 

Montrose Delta Diversion Dam
TypeConcrete gate structure with radial control and sluiceway gates.
LocationOn the Uncompahgre River, about 8 miles south of Montrose, Colorado
Year Completed1883. Constructed by private interests. Supplemental construction by Reclamation in 1908, 1911, 1912, and 1915. New structure built in 1963.
Dimensions: 
Structural height46 ft
Hydraulic height10 ft
Weir crest Length65 ft
Volume9,825 yd3
Headworks:Concrete structure with two radial gate controls operated by an electric motor.
Diversion capacity550 cfs

 

Garnet Diversion Dam
TypeRockfill weir, concrete surfaced
LocationOn the Uncompahgre River, about 15 miles northwest of Montrose, Colorado
Year CompletedAcquired by Reclamation and rehabilitated in 1914.
Dimensions: 
Structural height8 ft
Hydraulic height4 ft
Weir crest Length75 ft
Crest elevation5,170.0 ft
Volume1,000 yd3
Headworks:Two 4 ft by 6 ft wooden gates
Diversion capacity75 cfs

 

Selig Diversion Dam
TypeTimber-gated sluiceway with uncontrolled concrete overflow weir and concrete stilling basin.
LocationOn the Uncompahgre River, about 5 miles northwest of Montrose, Colorado
Year CompletedAcquired by Reclamation in 1914, supplemental construction in 1914.
Dimensions: 
Structural height25 ft
Hydraulic height10 ft
Weir crest Length94.5 ft
Weir length96 ft
Crest elevation5,696.25 ft
Volume500 yd3
Headworks:Two 4- by 6-ft wooden gates
Diversion capacity320 cfs

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Carriage Facilities
Gunnison Tunnel
LocationFrom Gunnison Diversion Dam southwest to a point about 2 miles west of Cedar Creek, Colorado.
Construction period1905-1909. Rehabilitated 1966-1967
Length5.8 mi
Diversion capacity1,000 cfs
Cross section:Rectangular with arched roof, 11 ft wide, 12 ft high.
LiningConcrete

 

South Canal
LocationFrom end of Gunnison Tunnel generally south-southwest to the Uncompahgre River
Construction period1904-1909
Length11.4 mi
Diversion capacity1,010 cfs
Typical Section in earth: 
Bottom width30 ft
Side slopes2:1
Water depth10 ft
Typical section in concrete: 
Bottom width25 ft
Side slopes1:1
Water depth4.5 ft
Lining thickness6 in

 

West Canal
LocationGenerally northwest from the Uncompahgre River beginning at the terminal structure of South Canal.
Construction period1912
Length21.2 mi
Diversion capacity172 cfs
Typical Section in earth: 
Bottom width200 ft
Side slopes1:1
Water depth2.5 ft

 

Montrose and Delta Canal
LocationGenerally northwest from Montrose and Delta Diversion Dam.
Construction period1908-1912
Length40 mi
Diversion capacity550 cfs
Typical Section in earth: 
Bottom width26 ft
Side slopes1:1
Water depth4 ft

 

Loutzenhizer Canal
LocationGenerally north-northwest from Loutzenhizer Diversion Dam.
Construction periodPrivately constructed. Purchased by Reclamation in 1908 and rehabilitated.
Length14.5 mi
Diversion capacity120 cfs
Typical Section in earth: 
Bottom width16 ft
Side slopes1:1
Water depth2.5 ft

 

Selig Canal
LocationGenerally north from Selig Diversion Dam.
Construction periodPrivately constructed. Rehabilitated and enlarged by Reclamation in 1914.
Length20mi
Diversion capacity320 cfs
Typical Section in earth: 
Bottom width26 ft
Side slopes1.5:1
Water depth1.5 ft

 

Ironstone Canal
LocationGenerally northwest from Ironstone Diversion Dam.
Construction periodPrivately constructed. Acquired by Reclamation in 1915.
Length14 mi
Diversion capacity400 cfs
Typical Section in earth: 
Bottom width30 ft
Side slopes1.5:1
Water depth4 ft

 

East Canal
LocationGenerally north from East Diversion Dam.
Construction periodPrivately constructed. Acquired by Reclamation in 1911, rehabilitated and extended.
Length10.6 mi
Diversion capacity165 cfs
Typical Section in earth: 
Bottom width24 ft
Side slopes1.5:1
Water depth1.5 ft

 

Garnet Canal
LocationNorth-northwest from Garnet Diversion Dam.
Construction periodPrivately constructed. Rehabilitated by Reclamation in 1914.
Length10.7 mi
Diversion capacity75 cfs
Typical Section in earth: 
Bottom width18 ft
Side slopes1.5:1
Water depth1.5 ft

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Last updated: May 17, 2011