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Mancos Project
Mancos Valley Project | Project History | Project Data | Contact Information

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

  

Project # 341

Land Areas (1992)
Irrigable area:
Full Irrigation Service0 acres
Supplemental Service13,627 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms192
Residential, Commercial, Industrial Lands119 acres
Total Irrigable Lands13,746 acres

Population Served:
Farm Population Served767
Non-Farm Population Served3,363
Total Population Served4,130

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
198310,7741,250,529
198411,3591,491,057
198511,0831,491,057
198611,0801,042,291
1987 7,114887,590
19887,320966,739
1989 7,7721,233,743
19907,697832,056
1991 6,929 755,489
19927,798507,614

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Project Water Supply
Project Water Quality

  

Project Water Supply

Current Conditions

Reservoir Storage

Major Storage Reservoirs in the Upper Colorado River Basin
Weather Conditions (NOAA)
Precipitation
Streamflow

Mancos River near Towaoc, Colorado (USGS)
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
Normal18.07 in
Maximum - 197826.36 in
Minimum - 19779.78 in
Mesa Verde NP, Colorado 1961-1990

Temperature
Mean Annual49.3 ?F
Daily Maximum - 07/13/1971100 ?F
Daily Minimum - 01/13/1963-20 ?F
Mesa Verde NP, Colorado 1948-1996
Growing Season123 days
Elevation of irrigable area6,400-7,700 ft

West Mancos River
Drainage area42 sq mi
Annual discharge
Maximum 56,300 acre-ft
Minimum12,220 acre-ft
Average - 1934-199727,490 acre-ft

http://waterdata.usgs.gov/nwis-w/CO/?statnum=09368500

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Project Water Quality

Mancos

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

  

Facilities in Operation
Facilities in Operation
Storage Dams1
Canals97 mi
Laterals40 mi
Drains2 mi

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Storage Facilities

Jackson Gulch Dam

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Regulatory Facilities

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Diversion Facilities

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Carriage Facilities
Inlet Canal
LocationFrom a point on the West Mancos River about 7 miles northeast of Mancos, Colorado, generally southwest to Jackson Gulch Reservoir.
Construction period1944-1949
Length2.6 mi
Diversion capacity258 cfs
Typical section in earth:
Bottom width12 ft
Side slopes1.5:1
Water depth4.5 ft
Typical section, bench flume:
Bottom width10 ft
Side slopes 0:1
Water depth4.83 ft
Lining thickness7 in

Outlet Canal
LocationFrom Jackson Gulch Dam generally southeast to the West Mancos River.
Construction period1943-1950
Length2.2 mi
Diversion capacity207 cfs
Typical section in earth:
Bottom width12 ft
Side slopes1.5:1
Water depth4 ft
Typical section, bench flume:
Bottom width10 ft
Side slopes 0:1
Water depth4 ft
Lining thickness7 in

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Pumping Plants

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Power Facilities

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Last updated: May 11, 2011