Blair Mill, located in Trempealeau, Wisconsin, is a historic dam completed in 1869 on the Trempealeau River.
Wind
Humidity
Owned by the local government, this buttress dam serves purposes such as recreation and water management. With a height of 13 feet and a length of 150 feet, Blair Mill has a storage capacity of 170 acre-feet and a normal storage of 120 acre-feet. The dam has a controlled spillway with a width of 73 feet and a low hazard potential, rated in fair condition as of May 2020.
Despite being over 150 years old, Blair Mill has undergone modifications in 1919 and 1998 to ensure its structural integrity. Inspected every 10 years, the dam meets regulatory requirements set by the Wisconsin Department of Natural Resources. The risk assessment for Blair Mill is rated as very high (1), emphasizing the importance of ongoing risk management measures. With its picturesque location and historical significance, Blair Mill continues to play a vital role in water resource management and recreation in the region, under the oversight of the local government and state regulatory agency.
Years Modified |
1919 - Other, 1998 - Other |
Year Completed |
1869 |
Dam Length |
150 |
Dam Height |
13 |
River Or Stream |
TREMPEALEAU |
Primary Dam Type |
Buttress |
Surface Area |
44 |
Hydraulic Height |
9 |
Drainage Area |
175 |
Nid Storage |
170 |
Structural Height |
13 |
Hazard Potential |
Low |
Nid Height |
13 |
Trempealeau River At Arcadia
|
400cfs |
Black River Near Galesville
|
862cfs |
Black River Ds St Hwy 54 @ Black River Falls
|
514cfs |
Trempealeau River At Dodge
|
953cfs |
Mississippi River At Winona
|
14700cfs |
La Crosse River Near La Crosse
|
348cfs |
| Location | Reservations | Toilets |
|---|---|---|
Riverside Memorial Park
|
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Col Larson County Park
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||
Lions Club - Four Seasons Park - Independence
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Pietrek County Park
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Pietrek Park Campgrounds
|