Storage Dams

7      

Diversion Dams

5      

Canals

416 mi  

Laterals

1,698 mi  

Pumping Plants

30      

Drains

144 mi  

Powerplants

2      

Transmission Lines

73.4 mi  

Substations

11      

Type:

Concrete weir with embankment wing

Location

On Tieton River about 16 miles southwest of Naches, Washington.

Year Completed

1908  

Dimensions:

   Structural height

5 ft  

   Hydraulic height

3 ft  

   Weir crest length

110 ft  

   Total crest length

510 ft  

   Crest elevation

2,301.6 ft  

   Volume

1,400 yd³  

Headworks:

Concrete structure, three 4- by 5-ft cast iron slide gates.

   Diversion capacity

320 cfs  

Type:

Concrete gravity ogee weir, movable crest

Location

On the Yakima River, near Easton, Washington.

Year Completed

1929  

Dimensions:

   Structural height

66 ft  

   Hydraulic height

43 ft  

   Weir crest length

64 ft  

   Total crest length

248 ft  

   Weir crest elevation
       (gate raised)

2,180.3 ft  

   Volume

5,800 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 capacity

1,200 cfs  

Fish facilities:

Concrete fish ladder on left abutment, twenty 10- by 6-ft bays.

Type:

Concrete weir

Location

On the Yakima River near Prosser, Washington.

Year Completed

1904 Privately constructed.
   Modified by Reclamation in 1932-1933 and 1956.

Dimensions:

   Structural height

9 ft  

   Hydraulic height

7 ft  

   Weir crest length

661 ft  

   Crest elevation

633.5 ft  

   Volume

2,500 yd³  

Headworks

Concrete structure with three 16- by 7.75-ft top-seal radial gates.

:   Diversion capacity

1,500 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.

Type:

Concrete ogee weir with embankment wing

Location

On the Yakima River near Parker, Washington.

Year Completed

1907  

Dimensions:

   Structural height

8 ft  

   Hydraulic height

6 ft  

   Weir crest length

500 ft  

   Crest elevation

898.5 ft  

   Volume

1,800 yd³  

Headworks:

Concrete structure with six 6-ft-square cast iron gates.

   Diversion capacity

1,320 cfs  

Fish facilities:

Three stair step ladders, one on each bank and one near center of dam.

Type:

Concrete weir, movable crest

Location

On the Yakima River about 10 miles north of Yakima, Washington.

Year Completed

1939  

Dimensions:

   Structural height

67 ft  

   Hydraulic height

34 ft  

   Weir crest length

241 ft  

   Total crest length

486 ft  

   Weir crest elevation

1,205.0 ft  

   Volume

21,700 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 capacity

2,200 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.

Location

From Easton Diversion Dam generally southeast along the south side of Yakima River to about 13 miles northwest of Ellensburg, Washington.

Construction period

1926-1929  

Length

26.2 mi  

Diversion capacity

1,320 cfs  

Typical section in earth:

   Bottom width

30 ft  

   Side slopes

1.5:1  

   Water depth

11.4 ft  

Typical section, lined:

   Bottom width

12 ft  

   Side slopes

1.5:1  

Location

From end of Kittitas Main Canal generally east- southeast along the northern edge of the Kittitas Division irrigated areas.

Construction period

1926-1931  

Length

36 mi  

Diversion capacity

925 cfs  

Typical section in earth:

   Bottom width

30 ft  

   Side slopes

1.5:1  

   Water depth

8.2 ft  

Typical section, lined:

   Bottom width

10 ft  

   Side slopes

1.25:1  

   Water depth

7.9 ft  

Location

On the North Branch Canal in the Kittitas Division.

Construction period

1929-1931  

Length

3,640 ft  

Diversion capacity

925 cfs  

Cross-section:

Circular

Diameter

9.25 ft  

Lining:

Concrete and steel

Location

From the end of the Kittitas Main Canal generally south- southeast along southern edge of Kittitas Division irrigated area.

Construction period

1926-1929  

Length

14 mi  

Diversion capacity

220 cfs  

Typical section in earth:

   Bottom width

12 ft  

   Side slopes

1.5:1  

   Water depth

3.9 ft  

Typical section, lined:

   Bottom width

5 ft  

   Side slopes

1.25:1  

   Water depth

3.8 ft  

Location

On the east side of the Yakima River, 3 miles northwest of Ellensburg, Washington.

Construction period

1974-1975  

Length

1.3 mi  

Diversion capacity

150 cfs  

Typical section in earth:

   Bottom width

10 ft  

   Side slopes

2:1  

   Water depth

5 ft  

Location

From Tieton Diversion Dam generally east along the south side of the Tieton River to the vicinity of Tieton, Washington.

Construction period

1907-1909  

Length

10 mi  

Diversion capacity

347 cfs  

Location

From the end of the Tieton Canal generally southeast along the Naches River to the vicinity of Yakima, Washington.

Construction period

1909-1910  

Length

10.3 mi  

Diversion capacity

92 cfs  

Location

From the end of the Tieton Canal generally south to the vicinity of Harwood, Washington.

Construction period

1911  

Length

29.7 mi  

Diversion capacity

191 cfs  

Typical section in earth:

   Bottom width

12 ft  

   Water depth

9 ft  

Location

From Roza Diversion Dam generally southeast along the north side of the Yakima River Valley to the vicinity of Benton City, Washington.

Length

90.4 mi  

Diversion capacity

2,200 cfs  

Typical section in earth:

   Bottom width

55 ft  

   Side slopes

1.5:1  

   Water depth

12 ft  

Typical section, lined:

   Bottom width

14 ft  

   Side slopes

1.25:1  

   Water depth

11.3 ft  

Location

On the Roza Canal near Roza Diversion Dam and Yakima, Washington.

Construction period

1936-1937  

Length

   Tunnel No.1

8,231 ft  

   Tunnel No. 3

9,588 ft  

Capacity of each tunnel

2,200 cfs  

Cross-section:

Horseshoe

Vertical height

17 ft  

Lining:

Concrete

Location

From Sunnyside Diversion Dam generally southeast to the vicinity of Benton City, Washington.

Construction period

1892-1912  

Length

60 mi  

Diversion capacity

1,295 cfs  

Typical section in earth:

   Bottom width

40 ft  

   Side slopes

1.5:1  

   Water depth

8 ft  

Typical section, lined:

   Bottom width

10 ft  

   Side slopes

1.5:1  

   Water depth

4 ft  

Location

Parallel to the Sunnyside Canal in the vicinity of Sunnyside, Washington.

Construction period

1915  

Length

10 mi  

Diversion capacity

42 cfs  

Typical section in earth:

   Bottom width

3 ft  

   Side slopes

1:1  

   Water depth

2.5 ft  

Location

South from the Sunnyside Canal near Sunnyside, Washington.

Construction period

1912  

Length

12.5 mi  

Diversion capacity

195 cfs  

Typical section in earth:

   Bottom width

14 ft  

   Side slopes

1:1  

   Water depth

4 ft  

Typical section, lined:

   Bottom width

10 ft  

   Side slopes

1:1  

   Water depth

3 ft  

Location

From and parallel to the Sunnyside Canal in the vicinity of Grandview, Washington.

Construction period

1916  

Length

8 mi  

Diversion capacity

36 cfs  

Typical section lined:

   Bottom width

2.5 ft  

   Side slopes

1:1  

   Water depth

2 ft  

Location

From and parallel to the Sunnyside Canal across Yakima River from Prosser, Washington.

Construction period

1917  

Length

9 mi  

Diversion capacity

20 cfs  

Typical section lined:

   Bottom width

2 ft  

   Side slopes

1:1  

   Water depth

2 ft  

Location

On south side of Yakima River across from Grandview, Washington.
           (Water supply through siphon from Sunnyside Canal).

Construction period

1910  

Length

13.5 mi  

Diversion capacity

125 cfs  

Typical section in earth:

   Bottom width

7 ft  

   Side slopes

1:1  

   Water depth

4 ft  

Location

On the south side of the Yakima River near Prosser, Washington
 .         (Water supply through siphon from Sunnyside Canal).

Construction period

1912  

Length

10 mi  

Diversion capacity

33 cfs  

Typical section in earth:

   Bottom width

3.5 ft  

   Side slopes

1:1  

   Water depth

3 ft  

Typical section, lined:

   Bottom width

3.5 ft  

   Side slopes

1:1  

   Water depth

3 ft  

Location

From Prosser Diversion Dam generally northeast along the Yakima River to the Chandler Power and Pumping Plant.

Construction period

1953-1954  

Length

10.6 mi  

Diversion capacity

1,500 cfs  

Typical section in earth:

   Bottom width

50 ft  

   Side slopes

1.5:1  

   Water depth

9.9 ft  

Typical section, lined:

   Bottom width

12 ft  

   Side slopes

1.5:1  

   Water depth

10.9 ft  

Location

From Chandler Power and Pumping Plant generally southeast to the vicinity of Hover, Washington.

Construction period

1954-1956  

Length

44 mi  

Diversion capacity

500 cfs  

Typical section in earth:

   Bottom width

14 ft  

   Side slopes

2:1  

   Water depth

7.6 ft  

   Earth lining thickness

18 in  

Typical section, lined:

   Bottom width

7 ft  

   Side slopes

1.5:1  

   Water depth

6.5 ft  

Designation

Number of units

Total capacity, cfs

Total dynamic head, ft

Total horsepower

Kennewick Division:

   Chandler¹

2

500

108

5,200

   Amon

1

  20

225

   700

Sunnyside Division:

   Snipes Mountain

2

  80

  63

   850

   Outlook

2

  48

--

   800

   Grandview

3

  38

35-78  

   365

   West Grandview

1

    4

  64

--

   Prosser

1

  40

106

   190

   Spring Creek

1

  22

  77

   160

   Hillcrest

1

         1.56

--

     35

Kittitas Division:

   Wippel

4

  65

  136.5

1,500

Roza Division:

   Mile   7.2-Area No. 1

4

  39

106-218      

1,000

   Mile 16.8-Area No. 2

5

     56.6

106-233      

1,600

   Mile 22.5-Area No. 3

5

     46.9

155-237      

1,600

   Mile 24.0-Area No. 4

2

  14

164

   400

   Mile 27.0-Area No. 5

1

       5.5

115

   100

   Mile 29.6-Area No. 6

1

       5.5

151

   125

   Mile 37.8-Area No. 7

3

     21.6

157

   600

   Mile 42.8-Area No. 8

3

     32.1

144

   750

   Mile 48.5-Area No. 9

3

     30.6

185

   900

   Mile 52.4-Area No. 9A

3

  33

166

   900

   Mile 56.1-Area No. 10

2

     13.5

139

   300

   Mile 61.8-Area No. 12

2

     11.8

150

   300

   Mile 67.3-Area No. 13

2

  48

111

   800

   Mile 71.0-Area No. 14

3

  33

241

1,200

   Mile 78.8-Area No. 15

6

     77.1

148-275      

2,550

   Mile 81.5-Severyns

1

    3

  70

     40

   Mile 88.3-Area No. 16

5

  46

139-271      

1,500

   Mile 92.7-Area No. 17

2

     12.2

235

   500

   Terrace Heights

2

    6

  94

     80

Cascade²

8

160

108

2,400