Little Grassy Lake, located in Washburn, Wisconsin, is a picturesque reservoir with a rich history dating back to its completion in 1981.
Wind
Humidity
This local government-owned dam, standing at a height of 9 feet, serves multiple purposes including flood control and water supply management. With a normal storage capacity of 50 acre-feet and a maximum storage of 140 acre-feet, the lake covers a surface area of 28 acres and has a drainage area of 0.2 square miles.
The dam at Little Grassy Lake boasts a controlled spillway type and a maximum discharge capacity of 40 cubic feet per second, ensuring the safety of the surrounding area in the event of heavy rainfall or flooding. Despite its low hazard potential, the dam's risk assessment indicates a very high risk level, emphasizing the importance of regular inspections and maintenance. The last inspection in October 2011 was rated as "Not Rated," highlighting the need for ongoing assessment and management to mitigate any potential risks associated with the dam.
As an essential water resource in the region, Little Grassy Lake serves as a hub for water-based recreational activities and wildlife habitat. Its strategic location and design make it a vital component of the local ecosystem, highlighting the importance of sustainable water resource management practices in the face of evolving climate patterns. With a commitment to regulatory compliance and regular inspections, Little Grassy Lake stands as a testament to the intersection of water resource management and climate resilience in the region.
Year Completed |
1981 |
Dam Length |
230 |
Dam Height |
9 |
River Or Stream |
LITTLE GRASSY LAKE OUTLET |
Primary Dam Type |
Earth |
Surface Area |
28 |
Hydraulic Height |
9 |
Drainage Area |
0.2 |
Nid Storage |
140 |
Structural Height |
9 |
Hazard Potential |
Low |
Nid Height |
9 |
St. Croix River Near Danbury
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1650cfs |
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668cfs |
St. Croix River At St. Croix Falls
|
1470cfs |
Flambeau River Near Bruce
|
616cfs |
Chippewa River At Bishops Bridge Near Winter
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251cfs |
Hay River At Wheeler
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235cfs |