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

 

  

Project # 33

 

Land Areas (1992)
Irrigable area:
Full Irrigation Service267,275 acres
Supplemental Service176,156 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms12,883
Residential, Commercial, Industrial Lands20,414 acres
Total Irrigable Lands463,845 acres

 

Population Served:
Farm Population Served38,461
Non-Farm Population Served161,308
Total Population Served199,769

 

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
1983380,461421,320,472
1984384,044489,336,367
1985383,194312,752,071
1986366,814383,141,627
1987363,677356,612,934
1988365,824513,395,148
1989365,720494,222,252
1990379,688578,973,373
1991369,149618,331,621
1992376,123628,503,519

 

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Project Water Supply
Project Water Quality

 

   

Project Water Supply

Current Conditions

Reservoir Storage

Major Storage Reservoirs in the Yakima Basin

Weather Conditions (NOAA)

East Slopes Southern Cascades, Washington
Kittitas Valley, Washington
Lower Columbia Basin, Washington
Yakima Valley, Washington

Precipitation

Streamflow

Yakima River at Kiona, Washington (USGS)

Streamflow Forecast Map

Spring and Summer (NRCS)

Snowpack Information

Columbia River Snowpack Summary
Mountain Snowpack Maps for Columbia River Basin

Drought Index

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

 

Historic Conditions

Annual Precipitation
Normal7.97 in
Maximum - 198313.22 in
Minimum - 19764.18 in
Yakima, Washington 1961-1990 

 

Temperature
Mean Annual49.7 ?F
Daily Maximum - 08/10/1971110 ?F
Daily Minimum - 02/01/1950-25 ?F
Yakima, Washington 1946-1996 
Growing Season177 days
Elevation of irrigable area400 - 2,200 ft

 

Yakima River
Drainage area above Keechelus Dam54.7 mi2
Annual discharge: 
Maximum - 1972414,179 acre-ft
Minimum - 1930152,098 acre-ft
Average - 1904-1978240,416 acre-ft

Streamflows

Yakima River near Martin, Washington (USGS)

 

Kachess River
Drainage area at Kachess Dam63.6 mi2
Annual discharge: 
Maximum - 1933337,240 acre-ft
Minimum - 194590,516 acre-ft
Average - 1904-1978210,591 acre-ft

Streamflows

Kachess River near Easton, Washington (USGS)

 

Cle Elum river
Drainage area at Cle Elim Dam203 mi2
Annual discharge: 
Maximum - 19721,018,001 acre-ft
Minimum - 1913374,883 acre-ft
Average - 1903-1978672,783 acre-ft

Streamflows

Cle Elum River near Roslyn, Washington (USGS)

 

Bumping River
Drainage area at Bumping Lake Dam70.7 mi2
Annual discharge: 
Maximum - 1950324,126 acre-ft
Minimum - 1941112,834 acre-ft
Average - 1909-1978212,456 acre-ft

Streamflows

Bumping River near Nile, Wahsington (USGS)

 

Tieton River
Drainage area at Tieton Dam187 mi2
Annual discharge: 
Maximum - 1972599,384 acre-ft
Minimum - 1945214,711 acre-ft
Average - 1909-1978364,356 acre-ft

Streamflows

Tieton River near Naches, Washington (USGS)

 

Yakima River
Drainage area above Parker3,660 mi2
Annual discharge: 
Maximum - 19164,057,351 acre-ft
Minimum - 1944422,417 acre-ft
Average - 1908-19781,825,149 acre-ft

Streamflows

Yakima River near Parker, Washington (USGS)

 

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Project Water Quality

Lower Yakima River

Naches River

Upper Yakima River

 

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Facilities in Operation
Storage Facilities
DiversionFacilities
Carraige Facilities
Pumping Plants

 

   

Facilities in Operation
Storage Dams7
Diversion Dams5
Canals416 mi
Laterals1,698 mi
Pumping Plants30
Drains144 mi
Powerplants2
Transmission Lines73.4 mi
Substations11

 

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Storage Facilities

Bumping Lake Dam

Cle Elum Dam

Clear Creek Dam

French Canyon Dam

Keechelus Dam

Kachess Dam

Tieton Dam

 

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DiversionFacilities
Tieton Diversion Dam
Type:Concrete weir with embankment wing
LocationOn Tieton River about 16 miles southwest of Naches, Washington.
Year Completed1908
Dimensions: 
Structural height5 ft
Hydraulic height3 ft
Weir crest length110 ft
Total crest length510 ft
Crest elevation2,301.6 ft
Volume1,400 yd3
Headworks:Concrete structure, three 4- by 5-ft cast iron slide gates.
Diversion capacity320 cfs

 

Easton Diversion Dam
Type:Concrete gravity ogee weir, movable crest
LocationOn the Yakima River, near Easton, Washington.
Year Completed1929
Dimensions: 
Structural height66 ft
Hydraulic height43 ft
Weir crest length64 ft
Total crest length248 ft
Weir crest elevation (gate raised)2,180.3 ft
Volume5,800 yd3
Spillway:Ogee weir, one automatically controlled 14.5- by 64-ft drum gate.
Headworks:Concrete structure at right abutment, two motor-operated 12-by 11-ft radial gates.
Diversion capacity1,200 cfs
Fish Facilities:Concrete fish ladder on left abutment, twenty 10- by 6-ft bays.

 

Prosser Diversion Dam
Type:Concrete weir
LocationOn the Yakima River near Prosser, Washington.
Year Completed1904 Privately constructed. Modified by Reclamation in 1932-1933 and 1956.
Dimensions: 
Structural height9 ft
Hydraulic height7 ft
Weir crest length661 ft
Crest elevation633.5 ft
Volume2,500 yd3
Headworks:Concrete structure with three 16- by 7.75-ft top-seal radial gates.
Diversion capacity1,500 cfs
Fish Facilities:Two vertical concrete fish ladders, 1 ladder with 14 pools for right bank, 1 ladder with 12 pools for left bank. One 36- by 48-in slide gate to control auxiliary flow for right bank fish ladder.

 

Sunnyside Diversion Dam
Type:Concrete ogee weir with embankment wing
LocationOn the Yakima River near Parker, Washington.
Year Completed1907
Dimensions: 
Structural height8 ft
Hydraulic height6 ft
Weir crest length500 ft
Crest elevation898.5 ft
Volume1,800 yd3
Headworks:Concrete structure with six 6-ft-square cast iron gates.
Diversion capacity1,320 cfs
Fish Facilities:Three stair step ladders, one on each bank and one near center of dam.

 

Roza Diversion Dam
Type:Concrete weir, movable crest
LocationOn the Yakima River about 10 miles north of Yakima, Washington.
Year Completed1939
Dimensions: 
Structural height67 ft
Hydraulic height34 ft
Weir crest length241 ft
Total crest length486 ft
Weir crest elevation1,205.0 ft
Volume21,700 yd3
Spillway gates:Two 14- by 110-ft motor-operated roller gates, float controlled.
Headworks:Concrete structure in right abutment with trashrack at inlet end protecting revolving fish screens in transition section. Radial gate structure at outlet end controls discharges into canal. Six 20-ft-long, 13.08-ft-diameter fish screens, motor operated. One 28- by 15-ft radial gate, motor operated, manually controlled. Two hand-operated sluice gates, one 16-in and one 14-in, on fish bypass.
Diversion capacity2,200 cfs
Fish Facilities:Fish facilities: Main concrete fish ladder with 28 pools in left abutment; auxiliary ladder with 4 pools in right pier. One 12- by 7-ft fixed-wheel gate on fish ladder, and one 30-in sluice gate on diffuser beneath main fish ladder.

 

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Carraige Facilities
Kittitas Main Canal
LocationFrom Easton Diversion Dam generally southeast along the south side of Yakima River to about 13 miles northwest of Ellensburg, Washington.
Construction period1926-1929
Length26.2 mi
Diversion capacity1,320 cfs
Typical section in earth: 
Bottom width30 ft
Side slopes 
Water depth11.4 ft
Typical section, lined: 
Bottom width12 ft
Side slopes1.5:1

 

North Branch Canal - Kittitas Main Central
LocationFrom end of Kittitas Main Canal generally east- southeast along the northern edge of the Kittitas Division irrigated areas.
Construction period1926-1931
Length36 mi
Diversion capacity925 cfs
Typical section in earth: 
Bottom width30 ft
Side slopes1.5:1
Water depth8.2 ft
Typical section, lined: 
Bottom width10 ft
Side slopes1.25:1
Water depth7.9 ft

 

Yakima River Pressure Tunnel
LocationOn the North Branch Canal in the Kittitas Division.
Construction period1929-1931
Length3,640 ft
Diversion capacity925 cfs
Cross-section:Circular
Diameter9.25 ft
Lining:Concrete and steel

 

South Branch Canal
LocationFrom the end of the Kittitas Main Canal generally south- southeast along southern edge of Kittitas Division irrigated area.
Construction period1926-1929
Length14 mi
Diversion capacity220 cfs
Typical section in earth: 
Bottom width12 ft
Side slopes1.5:1
Water depth3.9 ft
Typical section, lined: 
Bottom width5 ft
Side slopes1.25:1
Water depth3.8 ft

 

Cascade Intake Canal
LocationOn the east side of the Yakima River, 3 miles northwest of Ellensburg, Washington.
Construction period1974-1975
Length1.3 mi
Diversion capacity150 cfs
Typical section in earth: 
Bottom width10 ft
Side slopes2:1
Water depth5 ft

 

Tieton Canal
LocationFrom Tieton Diversion Dam generally east along the south side of the Tieton River to the vicinity of Tieton, Washington.
Construction period1907-1909
Length10 mi
Diversion capacity347 cfs

 

Naches Branch Canal
LocationFrom the end of the Tieton Canal generally southeast along the Naches River to the vicinity of Yakima, Washington.
Construction period1909-1910
Length10.3 mi
Diversion capacity92 cfs

 

Wide Hollow Branch Canal
LocationFrom the end of the Tieton Canal generally south to the vicinity of Harwood, Washington.
Construction period1911
Length29.7 mi
Diversion capacity191 cfs
Typical section in earth: 
Bottom width12 ft
Water depth9 ft

 

Roza Canal
LocationFrom Roza Diversion Dam generally southeast along the north side of the Yakima River Valley to the vicinity of Benton City, Washington.
Length90.4 mi
Diversion capacity2,200 cfs
Typical section in earth: 
Bottom width55 ft
Side slopes1.5:1
Water depth12 ft
Typical section, lined: 
Bottom width14 ft
Side slopes1.25:1
Water depth11.3 ft

 

Tunnels No. 1 and No. 3
LocationOn the Roza Canal near Roza Diversion Dam and Yakima, Washington.
Construction period1936-1937
Length 
Tunnel No. 18,231 ft
Tunnel No. 39,588 ft
Capacity of each tunnel2,200 cfs
Cross-section:Horseshoe
Vertical height17 ft
Lining:Concrete

 

Sunnyside Canal
LocationFrom Sunnyside Diversion Dam generally southeast to the vicinity of Benton City, Washington.
Construction period1892-1912
Length60 mi
Diversion capacity1,295 cfs
Typical section in earth: 
Bottom width40 ft
Side slopes1.5:1
Water depth8 ft
Typical section, lined: 
Bottom width10 ft
Side slopes1.5:1
Water depth4 ft

 

Outlook Canal
LocationParallel to the Sunnyside Canal in the vicinity of Sunnyside, Washington.
Construction period1915
Length10 mi
Diversion capacity42 cfs
Typical section in earth: 
Bottom width3 ft
Side slopes1:1
Water depth2.5 ft

 

Snipes Mountain Canal
LocationSouth from the Sunnyside Canal near Sunnyside, Washington.
Construction period1912
Length12.5 mi
Diversion capacity195 cfs
Typical section in earth: 
Bottom width14 ft
Side slopes1:1
Water depth4 ft
Typical section, lined: 
Bottom width10 ft
Side slopes1:1
Water depth3 ft

 

Grandview Canal
LocationFrom and parallel to the Sunnyside Canal in the vicinity of Grandview, Washington.
Construction period1916
Length8 mi
Diversion capacity36 cfs
Typical section lined: 
Bottom width2.5 ft
Side slopes1:1
Water depth2 ft

 

Prosser Irrigation District Canal
LocationFrom and parallel to the Sunnyside Canal across Yakima River from Prosser, Washington.
Construction period1917
Length9 mi
Diversion capacity20 cfs
Typical section lined: 
Bottom width2 ft
Side slopes1:1
Water depth2 ft

 

Mabton Canal
LocationOn south side of Yakima River across from Grandview, Washington. (Water supply through siphon from Sunnyside Canal).
Construction period1910
Length13.5 mi
Diversion capacity125 cfs
Typical section in earth: 
Bottom width7 ft
Side slopes1:1
Water depth4 ft

 

Prosser Canal
LocationOn the south side of the Yakima River near Prosser, Washington. (Water supply through siphon from Sunnyside Canal).
Construction period1912
Length10 mi
Diversion capacity33 cfs
Typical section in earth: 
Bottom width3.5 ft
Side slopes1:1
Water depth3 ft
Typical section, lined: 
Bottom width3.5 ft
Side slopes1:1
Water depth3 ft

 

Chandler Power Canal
LocationFrom Prosser Diversion Dam generally northeast along the Yakima River to the Chandler Power and Pumping Plant.
Construction period1953-1954
Length10.6 mi
Diversion capacity1,500 cfs
Typical section in earth: 
Bottom width50 ft
Side slopes1.5:1
Water depth9.9 ft
Typical section, lined: 
Bottom width12 ft
Side slopes1.5:1
Water depth10.9 ft

 

Kennewick Main Canal
LocationFrom Chandler Power and Pumping Plant generally southeast to the vicinity of Hover, Washington.
Construction period1954-1956
Length44 mi
Diversion capacity500 cfs
Typical section in earth: 
Bottom width14 ft
Side slopes2:1
Water depth7.6 ft
Earth lining thickness18 in
Typical section, lined: 
Bottom width7 ft
Side slopes1.5:1
Water depth6.5 ft

 

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Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower
Kennewick Division:    
Chandler125001085,200
Amon120225700
Sunnyside Division:    
Snipes Mountain Canal28063850
Outlook248--800
Grandview33835-78365
West Grandview1464--
Prosser140106190
Spring Creek12277160
Hillcrest11.56--35
Kittitas Division    
Wippel465136.51,500
Roza Division:    
Mile 7.2-Area No. 1439106-2181,000
Mile 16.8-Area No. 2556.6106-2331,600
Mile 22.5-Area No. 3546.9155-2371,600
Mile 24.0-Area No. 4214164400
Mile 27.0-Area No. 515.5115100
Mile 29.6-Area No. 615.5151125
Mile 37.8-Area No. 7321.6157600
Mile 42.8-Area No. 8332.1144750
Mile 48.5-Area No. 9330.6185900
Mile 52.4-Area No. 9A333166900
Mile 56.1-Area No. 10213.5139300
Mile 61.8-Area No. 12211.8150300
Mile 67.3-Area No. 13248111800
Mile 71.0-Area No. 143332411,200
Mile 78.8-Area No. 15677.1148-2752,550
Mile 81.5-Severyns137040
Mile 88.3-Area No. 16546139-2711,500
Mile 92.7-Area No. 17212.2235500
Terrace Heights269480
Cascade281601082,400

 

 

 

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Last updated: Jan 03, 2013