Situated in Brule, South Dakota, Pazonot Rated Lake is a state-regulated body of water with a significant hazard potential due to its earth dam structure.
Wind
Humidity
Built in 1936 by the Works Progress Administration (WPA), this lake boasts a dam height of 21 feet and a hydraulic height of 20 feet, providing a storage capacity of 775 acre-feet. With a drainage area of 39 square miles and a maximum discharge of 1340 cubic feet per second, Pazonot Rated Lake serves as a vital resource for water supply and flood control in the region.
Despite its age, Pazonot Rated Lake has undergone routine state inspections and is equipped with a vertical lift outlet gate and an uncontrolled spillway measuring 40 feet in width. The dam is managed by the South Dakota Department of Agriculture and Natural Resources (DANR) and falls under the jurisdiction of the state, ensuring that it is maintained and operated in compliance with state regulations. With a moderate risk assessment rating of 3, efforts are being made to manage and mitigate potential risks associated with the dam, emphasizing the importance of ensuring its structural integrity and safety for both water resource management and climate resilience.
Year Completed |
1936 |
Dam Length |
400 |
Dam Height |
21 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
39 |
Nid Storage |
775 |
Outlet Gates |
Vertical Lift |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
21 |
White R Near Oacoma Sd
|
105cfs |
Platte Creek Near Platte
|
3cfs |
Firesteel Cr Near Mount Vernon Sd
|
0cfs |
Keya Paha R At Wewela Sd
|
54cfs |
Keya Paha R Near Keyapaha Sd
|
33cfs |
James R Near Forestburg Sd
|
560cfs |