SNOFLO

       

GIESE WETLAND

RESERVOIR LEVELS
March 23, 2025


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Giese Wetland, located in Donnelly, Minnesota, is a private fish and wildlife pond with a low hazard potential and a satisfactory condition assessment. Built in 1997 by the USDA NRCS, this Earth-type dam spans 200 feet in length and has a maximum storage capacity of 270 acre-feet. The wetland covers an area of 37 acres and serves as a habitat for various aquatic species.

Managed by the Minnesota Department of Natural Resources, Giese Wetland is regulated and inspected by the state to ensure compliance with environmental regulations. The wetland is situated in the Fivemile Creek watershed and plays a crucial role in water resource management in the region. With a controlled spillway and no outlet gates, the wetland is designed to maintain a normal storage level of 102.7 acre-feet and can handle a maximum discharge of 149 cubic feet per second.

Despite its low hazard potential, Giese Wetland poses a very high risk due to its location and size. The dam has been regularly inspected, with the last assessment conducted in August 2019. With a focus on fish and wildlife conservation, this wetland serves as a valuable resource for both the local ecosystem and water enthusiasts interested in the intersection of wetland management and climate resilience.

Year_Completed 1997
Dam_Height 11.5
River_Or_Stream FIVEMILE CREEK-TR
Dam_Length 200
Primary_Dam_Type Earth
Surface_Area 37
Drainage_Area 0.46
Nid_Storage 270
Structural_Height 11.8
Outlet_Gates None
Hazard_Potential Low
Foundations Unlisted/Unknown
Nid_Height 12
       

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