Bureau of Reclamation Banner
Columbia Basin Project
Columbia Basin Project | Project History | Project Data | Contact Information

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

 

  

Project # 222

 

Land Areas (1992)
Irrigable area:
Full Irrigation Service549,801 acres
Supplemental Service0 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms2,050
Residential, Commercial, Industrial Lands7,729 acres
Total Irrigable Lands557,530 acres

 

Population Served
Farm Population Served12,577
Non-Farm Population Served7,566
Total Population Served20,143

Return to top

Area Irrigated and Crop Value
Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
1983479,279342,577,238
1984342,577,238340,311,552
1985342,577,238343,998,595
1986515,457342,315,663
1987505,616322,448,483
1988516,016433,033,093
1989524,043479,721,076
1990529,685497,995,456
1991526,602547,733,898
1992530,086552,343,334

Return to top

Project Water Supply
Project Water Quality

 

   

Project Water Supply

Current Conditions

Reservoir Storage

Grand Coulee Dam

Weather Conditions (NOAA)

Precipitation

Streamflow

Columbia River at International Boundary, Washington (USGS)

Streamflow Forecast Map

Spring and Summer (NRCS)

Snowpack Information

Columbia River Snowpack Summary
Mountain Snowpack Maps for Colombia River Basin

Drought Index

Palmer Drought Index Map
Explanation of Palmer Drought Severity Index (Text)
 

Climatic Conditions

  
  
  
  

 

Historic Conditions


Annual Precipitation
Normal7.83 in
Maximum - 198314.03 in
Minimum - 19763.61 in
Quincy, Washington 1961-1990

 

Temperature
Mean Annual49.8 ?F
Daily Maximum - 07/16/1941109 ?F
Daily Minimum - 01/31/1950-29 ?F
Quincy, Washington 1941-1996 
Growing Season212 days
Elevation of irrigable area 
Northern Part1,500 ft
Southern Part500 ft

 

Columbia River
Drainage area above Coulee Dam74,100 sq mi
Annual discharge 
Maximum - 1972101,288,880 acre-ft
Minimum - 194451,566,526 acre-ft
Average - 1930-199678,250,374 acre-ft

Streamflow: Columbia River at Grand Coulee, Washington (USGS)

Return to top

Project Water Quality

Banks Lake

Chief Joseph

Franklin D. Roosevelt Lake

Lower Crab

Return to top

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

 

   

Facilities in Operation
Storage Dams6
Canals333 mi
Laterals1,933 mi
Pumping Plants240
Drains3,163 mi
Powerplants1
Transmission Lines21 mi
Substations42

Return to top

Storage Facilities

Dry Falls Dam

Grand Coulee Dam

North Dam

O`Sullivan Dam

Pinto Dam

Soda Lake Dike

Return to top

Regulatory Facilities

Return to top

 

Diversion Facilities

Return to top

 

Carriage Facilities
Feeder Canal
Location:From end of Grand Coulee Pumping Plant discharge lines southwest to Banks Lake
Construction period:1946-1951
Length1.6 mi
Capacity16,000 cfs
Canal section, concrete lined: 
Bottom width50 ft
Side slopes1.5:1
Water depth25 ft
Lining thickness:<=12 in
Length6,130 ft
Cut-and-cover conduit: 
Description:Twin reinforced concrete barrels.
Dimensions (each conduit):Length
2,100 ftDiameter
25 ftTerminal structures:
Check structure with three 24- by 25-ft radial gates, a 410-ft long concrete-lined chute, and a V-type weir.

 

Main Canal
Location:South from Dry Falls Dam to Long Lake, then west from Long Lake Dam to East Low and West Canals bifurcation works.
Construction period:1946-1951
Length21 mi
Diversion capacity13,200 cfs
Typical section in rock: 
Bottom width50 ft
Side slopes1.5:1
Water depth35.8 ft
Typical section, concrete lined: 
Bottom width50 ft
Side slopes1.5:1
Water depth20.73 ft
Lining thickness:4.5 in

 

Bacon Tunnel No. 1 - Main Canal
Location:On the Main Canal beginning about 2 miles south of Dry Falls Dam.
Construction period:1946-1950
Length10,045 ft
Capacity7,250 cfs
Cross section:Horseshoe
Diameter23.25 ft
Lining:Concrete

 

Bacon Siphon No. 1 - Main Canal
Location:On the Main Canal about 2 miles south of Dry Falls Dam.
Construction period:1946-1950
Description:Reinforced concrete conduit
Length1,038 ft
Diameter23.25 ft
Capacity7,250 cfs

 

Bacon Tunnel No. 2 - Main Canal
Location:On the Main Canal beginning about 2 miles south of Dry Falls Dam.
Construction period:1976-1980
Length9,950 ft
Capacity12,050 cfs
Cross section:Horseshoe
Diameter28.5 ft
Lining:Concrete

 

Bacon Siphon No. 2 - Main Canal
Location:On the Main Canal about 2 miles south of Dry Falls Dam.
Construction period:1976-1980
Description:Reinforced concrete conduit
Length1,041 ft
Diameter28 ft
Capacity12,050 cfs

 

West Canal
Location:From the bifurcation on Main Canal about 2.5 miles north of Adrian, Washington, southwest to the vicinity of Quincy, Washington, then south to the Frenchman Hills Tunnel and east to the vicinity of O`Sullivan Dam.
Construction period:1946-1955
Length88 mi
Diversion capacity5,100 cfs
Typical section in earth: 
Bottom width50 ft
Side slopes1.5:1
Water depth19.12 ft
Typical section, concrete lined: 
Bottom width38 ft
Side slopes1.5:1
Water depth16.4 ft
Lining thickness:4.5 in

 

Soap Lake Siphon - West Canal
Location:On the West Canal around north end of Soap Lake, and about 8 miles northeast of Ephrata, Washington.
Construction period:1948-1951
DescriptionMonolithic concrete pipe with steel liner in high-head sections
Length2.45 mi
Diameter25-ft-diameter for the 0.88 mi of end sections where static head is less than 100 ft; 22.33-ft-diameter for remainder (static head greater than 100 ft).
Capacity5,100 cfs

 

Frenchman Hills Tunnel - West Canal
Location:On the West Canal about 20 miles south of Quincy, Washington
Construction period:1951-1953
Length9,280 ft
Capacity1,540 cfs
Cross section:Horseshoe
Diameter14 ft
Lining:Concrete

 

Royal Branch Canal - West Canal
Location:From the turnout of West Canal and the outlet of Frenchman Hills Tunnel.
Construction period:1956-1957
Length8.5 mi
Diversion capacity900 cfs
Typical section in earth: 
Bottom width37 ft
Side slopes1.5:1
Water depth7.24 ft

 

East Low Canal
Location:From Main Canal about 2.5 miles north of Adrian, Washington, generally south-south-east to the Snake River Valley about 8 miles northeast of Pasco, Washington.
Construction period:1946-1954
Length 
Present87 mi
Ultimate130 mi
Diversion capacity4,500 cfs
Typical section in earth: 
Bottom width68 ft
Side slopes1.5:1
Water depth15.5 ft
Typical section, concrete lined: 
Bottom width20 ft
Side slopes1.5:1
Water depth18.92 ft
Lining thickness:4.5 in

 

Potholes Canal
Location:From O`Sullivan Dam generally south to the vicinity of Pasco, Washington.
Construction period:1949-1953
Length70 mi
Diversion capacity3,900 cfs
Typical section in earth: 
Bottom width48 ft
Side slopes1.5:1
Water depth15.9 ft
Typical section, in rock: 
Bottom width34 ft
Side slopes1.5:1
Water depth35.36 ft

 

Eltopia Branch Canal - Potholes Canal
Location:From the turnout on Potholes Canal about 8 miles northwest of Eltopia, Washington, then southeast to the vicinity of Eltopia.
Construction period:1953-1954
Length25 mi
Diversion capacity555 cfs
Typical section in earth: 
Bottom width20 ft
Side slopes1.5:1
Water depth6.6 ft

 

Wahluke Branch Canal - Potholes Canal
Location:Southwest from the turnout on Potholes Canal about 6 miles south of Othello, Washington.
Construction period:1957-1967
Length41 mi
Diversion capacity2000 cfs
Typical section in earth: 
Bottom width36 ft
Side slopes1.5:1
Water depth9 ft
Typical section in concrete lined: 
Bottom width12 ft
Side slopes1.5:1
Water depth10.4 ft
Lining thickness4.5 in

 

Wahluke Siphon - Wahluke Branch Canal
Location:On the Wahluke Branch Canal beginning at the turnout from the Potholes Canal.
Construction period:1956-1959
Length3 mi
Diameter15.33 ft
Diversion capacity2000 cfs

 

Return to top

Power Facilities

Grand Coulee Powerplant Complex

Return to top

Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower
Grand Coulee Pump-Generating Plant1217,730292-310 525,000
Block No. 1 - 5 relift plants81036-35 428
Block No. 2 -    
Burbank No. 1340.590600
Burbank BP 0.3192430
Block No. 3 -429.585400
Block No. 11 -    
Lower Scooteney3761491,500
Upper Scooteney32497300
Upper Scooteney (PE 27A - 2nd relift)19155200
2 plants25.751415
Block No. 12 - 2 plants3174-27 45
Block No. 13 - 6 plants625.310.5-2275
Block No. 14 -    
Mesa4160821,800
9 plants181035.5-28241
Block No. 15 -    
Ringold423235-381,230
Ringold relift311814.5480
12 plants17153.76-52 923
Block No. 16 -    
Eltopia Branch37250600
11 plants2011010.5-70205
Block No. 161 - 1 plant32826120
Block No. 17 -Sagemoor488911,200
Block No. 18 -13 plants26177.85.5-34.5355.5
Block No. 19 - 5 plants837.57.5-70205
Block No. 20 -    
White Bluffs No. 14178852,000
9 plants1795.78-72 500
Blocks No. 21 and 48 -Radar5256118-2778,100
Blocks No 23 and 201-White Bluffs No 2622263-1062,250
Block No. 23 - 3 plants72015-1872.5
Block No. 24 - 1 plant3362601,500
Block No. 201 - 1 plant210.21120
Block No. 40 - 5 plants84011-45 125
Block No. 401 - 2 plants335.811-25.5125
Block No. 41 - 7 plants13955-35 297.5
Block No. 42 - 9 plants1813510-32 522.5
Block No. 43 - 7 plants954.14-64 268
Block No. 44 -    
Warden3135551,050
North Warden37257600
Warden Relift45751-96550
6 plants84912-125525
Block No. 45 - 15 plants24165.57-45 528
Block No. 46 - 1 plant2822-2332.5
Block No. 47 - 5 plants8438.5-23130
Block No. 48 - 1 plant214.41740
Block No. 49 -    
Lower Saddle Gap4112941,600
Upper Saddle Gap49015-1131,365
PE-1711486200
Block No. 70 -    
W-934785-2301,100
2 plants2257-54 140
Block No. 71 - 2 plants2176-29.563
Block No. 72 - 11 plants12605-90 302.5
Block No. 73 -    
Quincy942159-26010,018
2 plants317.313-8090
Block No. 74 -    
Babcock1029244-2216,200
Babcock W.W. disposal22032120
Block No. 741 - 1 plant317.270190
Block No. 75 -    
3 plants5358-18 85
1 plant1321.512.5
Block No. 76 - 2 plants1099.65-20 185
Block No. 77 -    
Evergreen825383-2226,800
2 plants447.218-20127.5
Block No. 78 - 4 plants6516-13 102.5
Block No. 79 -1 Plant132010
Frenchman Springs819754-2644,700
Block No. 80 - Hope Valley36084760
Blocks No. 80 and 81 - Frenchman Hills9432170-31413,500
Block No. 82 - Low Gap485.672900
Block No. 83 -    
Sand Hollow4178651,600
6 plants1144.46-20 95
Block No. 85 - 4 plants621.49-18 65
Block No. 86 - 1 plant131610
Block No. 87 - 5 plants10476.5-51220
Block No. 88 - 1 plant211715
Block No. 89 - 14 plants28134.35-33 365
Soap Lake Protective Works, Block No. 70 -    
Lake Lenore No. 143560350
Lake Lenore No. 25401971,200
Lake Lenore No. 314250150
6 deep wells616.8220-304800

Return to top


Last updated: Jan 03, 2013