1918 650kw Pisagah: (
Satellite, built for electricity.)
1909: 970kw Dayton Hollow: (
Satellite, built for electricity.)
1953 Orwell: (
Satellite, built for flood control by the USACE.)
These hydropower plants received a FERC license for another 40 years of operation in 2022. [
otpco]
1918 650kw Pisagah Dam
This powerhouse has been online since 1918 and generates 650kw. [
FarmForum]
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jfbrennan
In 2020, the spillway wall was replaced. |
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jfbrennan
Divers installed a wooden cofferdam on the spillway and a regular sheeting wall was used in the river for the cofferdam. |
1909 970kw Dayton Hallow Dam
"Completed in 1909, it is the first power plant built by the Otter Tail Power Company and is one of five dams on the river. Together, they produce about 3.5 megawatts of power." [
kiddle]
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| Otter Tail County Historical Society posted |
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| ebay, the backside was cropped off |
1953 Orwell Dam
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USACE
"Owned and operated by the Corps of Engineers, the 71-year-old dam was constructed in 1953 with a height of 60 feet and a length of 1,344 feet at its crest."
[Given that the Otter Tail River has enough flow for five hydropower dams to be built near Fergus Falls, why doesn't the USACE take advantage of a 60' head and generate electricity?] |
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USACE, St. Paul District posted
In celebration of our 250th anniversary, we #TBT to February 27, 2004, when the #MinnesotaSocietyOfProfessionalEngineers named the Orwell Dam rehabilitation and renovation project as one of the Seven Wonders of Engineering in #Minnesota. The original building of the Dam was completed in 1953. It can store 8,600 acre-feet of water and is a key component in a comprehensive flood control plan for the #RedRiver of the North. The dam is located near Fergus Falls, Minnesota.
John Fromuth: This photo was taken at the 2020. Bill Long: Orwell was part of the Lake Traverse project when I was there from 1995 to 2000. [This project cost $4.7m. [Otter Tail County Historical Society post]] |
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