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

 

  

Project # 8

 

Land Areas (1992)
Irrigable area:
Full Irrigation Service0 acres
Supplemental Service0 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms706
Residential, Commercial, Industrial Lands4,939
Total Irrigable Lands33,368

 

Population Served:
Farm Population Served2,729
Non-Farm Population Served24,140
Total Population Served26,869

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
198329,18418,050,047
198429,80317,769,469
198529,90516,649,164
198624,9639,789,962
198725,16913,522,251
198824,60620,872,850
198925,54411,820,617
199025,83821,898,164
199126,15910,591,929
199225,72719,049,921

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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 (NRCS)

Drought Index

Palmer Drought Index Map


Annual Precipitation
Normal8.64 in
Maximum - 198319.82 in
Minimum - 19765.27 in
Yuma, Arizona 1961 - 1990 

 

Temperature
Mean Annual52.7 ?F
Daily Maximum - 07/15/1925105 ?F
Daily Minimum - 01/13/1963-23 ?F
Grand Junction, Colorado 1900-1996 
Growing Season190 days
Elevation of irrigable area4,700 ft

 

Colorado River
Drainage area above Grand Valley Diversion Dam8,055 sq mi
Annual discharge at Cameo, Colorado 
Maximumacre-ft
Minimumacre-ft
Average - 1934-19972,840,000 acre-ft

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Project Water Quality

Colorado Headwaters - Plateau

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Facilities in Operation
Facilities in Operation
Diversion Dams1
Canals90.1 mi
Laterals166 mi
Pumping Plants2
Drains112 mi
Powerplants1

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Carriage Facilities
Government High Line Canal
LocationFrom Grand Valley Diversion Dam southwest about 20 miles along the Colorado River to vicinity of Grand Junction, Colorado, then generally northwest about 35 miles.
Construction period1912-1917
Length55 mi
Diversion capacity1,675 cfs
Typical section in earth: 
Bottom width38 ft
Side slopes1.5:1
Water depth10.5 ft
Lining thickness4 in

 

Tunnel No. 1 - Government High Line Canal
LocationNear the Colorado River 2 miles south of Grand Valley Diversion Dam.
Construction period1912-1914
Length3,723 ft
Diversion capacity1,675 cfs
Cross section:Horseshoe
Height14 ft
Width17.5 ft
Lining:Concrete

 

Tunnel No. 2 - Government High Line Canal
LocationNear the Colorado River 4 miles south of Grand Valley Diversion Dam.
Construction period1912-1914
Length1,655 ft
Diversion capacity1,675 cfs
Cross section:Horseshoe
Height14 ft
Width16 ft
Lining:Concrete

 

Tunnel No. 3 - Government High Line Canal
LocationNear the Colorado River 5 miles south of Grand Valley Diversion Dam.
Construction period1913-1915. Bypass bore constructed around collapsed section in 1950.
Length7,486 ft
Diversion capacity730 cfs
Cross section:Horseshoe
Height11 ft
Width11.5 ft
Lining:Concrete
Thickness:4 in

 

Orchard Mesa Power Canal
LocationFrom Government High Line Canal between Tunnels No. 2 and 3 across river through Orchard Mesa Siphon and generally south to Grand Valley Powerplant and Orchard Mesa Pumping Plant.
Construction period1922 - 1924
Length3.5 mi
Diversion capacity800 cfs
Typical section, open canal: 
Bottom width20 ft
Side slopes1:1
Water depth9.8 ft
Lining thickness4 in
Typical section, bench flume: 
Bottom width17 ft
Side slopes0:1
Water depth6.6 ft
Wall thickness4 in
Top6 in
Bottom9 in
Typical section, cut and cover conduit: 
Bottom width11 ft
Height11.4 ft
Side slopes0:1
Water depth10.3 ft
Concrete thickness: 
Bottom10 in
Sidewall9 in

 

Mann`s Gulch Siphon - Orchard Mesa Power Canal
TypeReinforced monolithic concrete
LocationStation 57+87 on the canal, about 1.5 miles east of Palisade, Colorado
Length193 ft
Diversion capacity800 cfs
Cross section:Circular
Diameter12 ft

 

Applegate Draw Siphon and Wasteway - Orchard Mesa Power Canal
TypeTwin-barrel reinforced monolithic concrete
LocationStation 138+14 on the canal, about 0.5 miles southeast of Palisade, Colorado
Length140 ft
Diversion capacity800 cfs

 

Orchard Mesa Canal No. 1
LocationFrom Orchard Mesa Pumping Plant, about 0.5 mile south of Palisade, Colorado, southwesterly to a point about 1 mile south of Grand Junction, Colorado.
Length15.5 mi
Diversion capacity85 cfs
Typical section in earth 
Bottom width8 ft
Side slopes1.5:1
Water depth3.1 ft

 

Big Wash Siphon - Orchard Mesa Canal No. 1
TypePrecast concrete pipe
LocationStation 3+18.4 on the canal.
Length780.6 ft
Capacity80 cfs
Cross sectionCircular
Diameter4.5 ft

 

Steel Siphon - Orchard Mesa Canal No. 1
TypeRiveted plate steel
LocationStation 4+50 on the canal
Length1,321.5 ft
Capacity80 cfs
Cross sectionCircular
Diameter4.5 ft

 

Double Wash Siphon No. 1 - Orchard Mesa Canal No. 1
TypePrecast concrete pipe
LocationStation 346+62 on the canal
Length375.5 ft
Capacity80 cfs
Cross sectionCircular
Diameter4.5 ft

 

Double Wash Siphon No. 2 - Orchard Mesa Canal No. 1
TypePrecast concrete pipe
LocationStation 356+44 on the canal
Length503 ft
Capacity80 cfs
Cross sectionCircular
Diameter4.5 ft

 

Concrete Siphon - Orchard Mesa Canal No. 1
TypePrecast concrete pipe
LocationStation 8+16 on the canal
Length737.8 ft
Capacity14.3 cfs
Cross sectionCircular
Diameter1.75 ft

 

Orchard Mesa Canal No. 2
LocationFrom Orchard Mesa Pumping Plant, about 0.5 mile south of Palisade, Colorado, southwesterly to a point about 2.5 miles southeast of Grand Junction, Colorado.
Length16.1 mi
Diversion capacity65 cfs
Typical section in earth: 
Bottom width7 ft
Side slopes1.5:1
Water depth2.8 ft

 

Steel Siphon - Orchard Mesa Canal No. 2
TypeRiveted plate steel
LocationStation 13+24 on the canal
Length426.5 ft
Capacity60 cfs
Cross sectionCircular
Diameter4 ft

 

Steel Siphon - Orchard Mesa Canal No. 2
TypeRiveted plate steel
LocationStation 21+29 on the canal
Length319 ft
Capacity60 cfs
Cross sectionCircular
Diameter4 ft

 

Big Wash Siphon No. 1 - Orchard Mesa Canal No. 2
TypePrecast concrete pipe
LocationStation 357+95 on the canal
Length491.7 ft
Capacity50 cfs
Cross sectionCircular
Diameter3.75 ft

 

Big Wash Siphon No. 2 - Orchard Mesa Canal No. 2
TypePrecast concrete pipe
LocationStation 419+41 on the canal
Length2,817.1 ft
Capacity50 cfs
Cross sectionCircular
Diameter3.75 ft

 

Double Wash Siphon - Orchard Mesa Canal No. 2
TypeReinforced monolithic concrete pipe
LocationStation 501+23 on the canal
Length180 ft
Capacity50 cfs
Cross sectionCircular
Diameter3.75 ft

 

Concrete Siphon - Orchard Mesa Canal No. 2
TypeReinforced monolithic concrete pipe
Location 
Length500 ft
Capacity60 cfs
Cross sectionCircular
Diameter4 ft

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Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower
Price-Stubb12531125
Orchard Mesa414041-1301,500

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Power Facilities

Grand Valley Powerplant

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Last updated: May 10, 2011