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

 

  

Project # 514

 

Land Areas (1992)
Irrigable area:
Full Irrigation Service0 acres
Supplemental Service6,454 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms126
Residential, Commercial, Industrial Lands590 acres
Total Irrigable Lands7,044 acres

 

Population Served:
Farm Population Served560
Non-Farm Population Served690
Total Population Served1,250

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
19835,322945,380
19845,393837,310
19855,389828,930
19865,494841,749
19875,143858,515
19885,0431,226,909
19895,2641,285,411
19905,2981,054,425
19915,3351,018,048
19925,576859,340

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Project Water Supply

Current Conditions


Streamflow

Colorado River near Cameo, Colorado (USGS)

Streamflow Forecast Map

Spring and Summer (NRCS)

Snowpack Information

Mountain Snowpack Maps for Colorado River Basin
Drought Index

Palmer Drought Index Map

Annual Precipitation
Normal12.54 in
Maximum - 198521.76 in
Minimum - 19627.96 in
Rifle, Colorado 1961-1990 

 

Temperature
Mean Annual47.6 ?F
Daily Maximum - 07/26/1929104 ?F
Daily Minimum - 01/12/1963-38 ?F
Rifle, Colorado 1910-1996 
Growing Season160-165 days
Elevation of irrigable area5,500 - 6,000 ft

 

Rifle Creek
Drainage area at Rifle Gap Dam142 mi2
Annual discharge 
Maximumacre-ft
Minimumacre-ft
Averageacre-ft

Streamflows


Rifle Creek near Rifle, Colorado USGS)

 

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Project Water Quality

Colorado Headwaters - Plateau

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Facilities in Operation
Storage Dams1
Canals12.5 mi
Grass Valley Canal - privately-owned, pre-project13.5 mi
Laterals1.98 mi
Pumping Plants1

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Storage Facilities

Rifle Gap Dam

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Carriage Facilities
Davie Ditch Canal
LocationFrom Rifle Gap Reservoir, extending south 4.9 miles
Construction periodRehabilitated by Reclamation, 1965-1966
Length4.9 mi
Diversion capacity18 cfs
Typical section in earth: 
Bottom width5 ft
Side slopes2:1
Water depth1.4 ft

 

Grass Valley Canal
LocationFrom East Rifle Creek above Rifle Gap Reservoir, extending generally south and east to existing Harvey Gap Reservoir.
Construction periodRehabilitated by Reclamation, 1965-1966
Length1mi
Diversion capacity60 cfs
Typical section in earth: 
Bottom width8 ft
Side slopes2:1
Water depth3.5 ft

 

Silt Pump Canal
LocationAt end of an inlet canal from the Colorado River about 2 miles east of Silt, Colorado, extends to the northwest.
Construction periodRehabilitated by Reclamation, 1965-1966
Length7.6 mi
Diversion capacity32 cfs
Typical section in earth: 
Bottom width6 ft
Side slopes2:1
Water depth1.4 ft

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Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower
Silt Pumping Plant4362251,275

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Last updated: May 17, 2011