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Lower Yellowstone Project - Main Page
Facilities in Operation
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Diversion Dams |
1 |
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Canals |
71.6 mi |
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Laterals |
225 mi |
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Pumping Plants |
3 |
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Drains |
118 mi |
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Diversion Facilities
Lower Yellowstone Diversion Dam
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Type: |
Rockfilled timber-crib weir, embankment wing |
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Location: |
On the Yellowstone River near Intake, Montana. |
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Year Completed: |
1910 |
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Dimensions: |
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Structural height |
12 ft |
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Hydraulic height |
4 ft |
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Crest length |
700 ft |
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Crest elevation |
1981.0 ft |
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Volume |
23,000 yd3 |
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Spillway: |
Ogee |
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Headworks: |
Concrete, 11 circular sluice gates, each 5 ft in diameter |
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Diversion capacity |
1,100 cfs |
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Carriage Facilities
Main Canal
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Location: |
From Lower Yellowstone Diversion Dam near Intake, Montana, generally northeast along west side of Yellowstone River to vicinity of Nohly, Montana. |
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Construction: |
1905-1909 |
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Length |
71.6 mi |
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Diversion capacity |
1,200 cfs |
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Typical section in earth: |
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Bottom width |
30 ft |
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Side slopes |
1.5:1 |
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Water depth |
9.8 ft |
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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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Thomas Point |
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Turbine-driven |
1 |
45 |
32.5 |
--- |
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Motor-driven |
2 |
20 |
32.5 |
--- |
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Crane |
2 |
10 |
---- |
40 |
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Drain 27 |
1 |
15 |
---- |
75 |
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