The five dams are Dayton Hollow, Hoot Lake, Pisgah, Taplin Gorge (Friberg) and Wright (Central). Together, they produce about 3.5 megawatts of power.
From upstream to downstream:
1925 560kw Taplin Gorge (Frigberg): (Dam:
Satellite; Powerhouse:
Satellite)
Overview
These hydropower plants received a FERC license for another 40 years of operation in 2022. [
otpco]
1925 560kw Taplin Gorge (Frigberg)
1914 670kw Hoot Lake
This hydroelectric plant was finished in 1914 with a capacity of 670kw. [
FarmForum]
I presume that the outflow we see is from the cooling system of the coal-fired plant. This view shows us the gatehouse and the "water chute" to the plant.
The water chute for the hydropower plant is fed by a canal from Wright Lake.
The blue circle highlights the hydroplant; green is the headrace; yellow is the tailrace; and red is the surge tank. (This satellite image is from an earlier draft. That is why the
coal-fired plant still appears int he image.)
Those headrace must be on a bluff to provide the 68' (21m) head for the water. I used this topo map to confirm that there are dense contour lines between the powerhouse and the headrace.
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| 1973/75 Fergus Falls Quad @ 24,000 |
Wright Lake is fed by Hoot Lake. And Hoot Lake is fed by a
diversion dam, canal, and aqueduct under a ridge. Because the river winds around the area, the distance to the dam is much further up the river than the distance to the diversion dam. (It looks like they labeled the dam a Gravel Pit. I think that is a mistake.)
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| 1973/75 Fergus Falls and Wall Lake Quads @ 24,000 |
After I had written the above, I found that I had already written some notes.
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| Adam Bibeau commented on a post |
The leather belts caught my eye in this view.
Diversion dam:
The entire water flow. The diversion dam is in the upper-right corner and the plant is near the lower-left corner.
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| 1973 Fergus Falls Quad @ 24,000 |
1922 400kw Wright (Central)
That is an interesting handrail on the bridge.
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