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Umatilla Project - Main Page
Facilities in Operation
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Storage Dams |
2 |
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Diversion Dams |
3 |
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Canals |
137 mi |
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Laterals |
106 mi |
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Pumping Plants |
5 |
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Drains |
14 mi |
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Storage Facilities
Cold Springs Dam
McKay Dam
Diversion Facilities
Feed Canal Diversion Dam
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Type: |
Concrete, rock, and timber weir with embankment wing |
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Location |
On the Umatilla River, 1.5 miles southeast of Echo, Oregon. |
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Year Completed |
1907 |
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Dimensions: |
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Structural height |
8 ft |
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Hydraulic height |
4 ft |
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Crest length |
2,100 ft |
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Crest elevation |
656.0 ft |
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Volume |
14,100 yd3 |
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Diversion capacity |
350 cfs |
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Maxwell Diversion Dam
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Type: |
Concrete and timber-crib weir with embankment wing |
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Location |
On the Umatilla River, 1 mile west of Hinkle, Oregon. |
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Year Completed |
1912 |
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Dimensions: |
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Structural height |
14 ft |
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Hydraulic height |
4 ft |
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Crest length |
400 ft |
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Crest elevation |
529.0 ft |
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Volume |
500 yd3 |
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Diversion capacity |
140 cfs |
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Three Mile Falls Diversion Dam
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Type: |
Concrete multiple arch weir |
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Location |
On the Umatilla River, 3 miles south of Umatilla, Oregon. |
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Year Completed |
1914 |
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Dimensions: |
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Structural height |
24 ft |
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Hydraulic height |
23 ft |
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Crest length |
915 ft |
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Crest elevation |
404.3 ft |
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Volume |
5,100 yd3 |
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Diversion capacity |
375 cfs |
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Carriage Facilities
Feed Canal
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Location |
From Feed Canal Diversion Dam generally northwest along the Umatilla River about 8 miles, then northeast to Cold Springs Reservoir. |
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Construction period |
1906-1907. Enlarged 1913-1917 |
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Length |
25 mi |
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Diversion capacity |
350 cfs |
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Typical section in earth: |
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Bottom width |
23 ft |
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Side slopes |
1.5:1 |
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Water depth |
5.5 ft |
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West Extension Main Canal
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Location |
From Three Mile Falls Diversion Dam generally west about 20 miles along the Columbia River. |
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Construction period |
1913-1916 |
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Length |
27 mi |
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Diversion capacity |
140 cfs |
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Maxwell Canal
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Location |
From Umatilla River northeast to vicinity of Cold Springs Reservoir. |
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Construction period |
Non-Reclamation construction. Enlarged in 1917 by Bureau of Reclamation. |
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Length |
10 mi |
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Diversion capacity |
140 cfs |
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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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River |
3 |
60 |
145 |
1,800 |
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Columbia River |
6 |
282 |
335 |
12,000 |
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Cold Springs |
6 |
158 |
63 |
1,500 |
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Stanfield |
4 |
79 |
61 |
800 |
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West Extension Irrigation District |
5 |
147 |
97 |
2,400 |
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