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Owyhee Project - Main Page
Facilities in Operation
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Storage Dams |
1 |
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Canals |
172 mi |
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Laterals |
543 mi |
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Pumping Plants |
9 |
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Drains |
227 mi |
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Transmission Lines |
19.4 mi |
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Substations |
7 |
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Storage Facilities
Owyhee Dam
Carriage Facilities
North Canal
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Location |
From Lake Owyhee north about 65 miles to the Snake River across from Weiser, Idaho. |
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Construction period |
1930-1936 |
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Total length |
61.5 mi |
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Diversion capacity |
1,190 cfs |
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Typical section in earth: |
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Bottom width |
24 ft |
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Side slopes |
1.5:1 |
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Water depth |
10.9 ft |
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Typical section, concrete lined: |
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Bottom width |
10.2 ft |
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Side slopes |
1.25:1 |
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Water depth |
10 ft |
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Lining thickness |
4 in |
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North Canal Tunnel No. 1
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Location |
From Lake Owyhee near the dam, 3.5 miles northeast to Tunnel Canyon. |
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Construction period |
1930-1932 |
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Length |
3.5 mi |
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Capacity |
1,840 cfs |
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Diameter |
16.58 ft |
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Cross section: |
Horseshoe |
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Concrete lining |
8-16 in |
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Malheur River Siphon - North Canal
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Location |
In the valley of the Malheur River near Ontario, Oregon. |
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Construction period |
1935 |
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Length |
4.3 mi |
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Capacity |
325 cfs |
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Diameter (inside) |
6.67 ft |
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Maximum head |
283 ft |
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Material: |
Plate steel |
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South Canal
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Location |
From the end of North Canal Tunnel No.1 to Snake River opposite Marsing, Idaho. |
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Construction period |
1930-1936 |
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Total length |
37 mi |
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Diversion capacity |
490 cfs |
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Typical section in earth: |
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Bottom width |
16 ft |
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Side slopes |
1.5:1 |
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Water depth |
7 ft |
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South Canal Tunnel No. 5
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Location |
From the end of North Canal Tunnel No. 1, southeast. |
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Construction period |
1930-1932 |
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Length |
4.2 mi |
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Capacity |
650 cfs |
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Diameter: |
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Horseshoe section |
9.25 ft |
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Circular section |
9.5 ft |
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Lining |
6-10 in |
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Pumping Plants
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Designation |
Number of units |
Total capacity, cfs |
Total dynamic head, ft |
Total horsepower |
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Mitchell Butte Division: |
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Ontario-Nyssa |
4 |
130 |
120 |
2,250 |
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Owyhee Ditch |
3 |
222 |
50 |
1,500 |
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Dead Ox Flat Division: |
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Dead Ox |
5 |
176 |
50-111 |
2,675 |
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Succor Creek Division:1 |
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Succor Creek No. 1 |
1 |
15 |
61 |
--- |
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Succor Creek No. 2 |
1 |
15 |
66 |
--- |
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Gem District: |
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Gem Advancement District: |
9 |
334 |
76-180 |
7,610 |
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South |
1 |
13 |
20 |
40 |
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North |
1 |
5.5 |
33 |
30 |
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Kingman Colony District: |
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Kingman Colony |
1 |
6 |
44 |
40 |
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1 Succor Creek No.1 and No. 2 are direct-connected hydraulic powered units. Other plants are supplied power from Boise Project powerplants. |
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