Sly Number 1 is a privately owned earth dam located in Charles Mix, South Dakota, along Platte Creek.
Wind
Humidity
Built in 1961, this dam stands at a height of 25 feet and has a storage capacity of 18 acre-feet. With a maximum discharge of 900 cubic feet per second, Sly Number 1 plays a significant role in water resource management in the area.
Managed by the Natural Resources Conservation Service, Sly Number 1 is regulated by the South Dakota Department of Environment and Natural Resources, with inspection, enforcement, and permitting processes in place to ensure its safety and functionality. The dam's hazard potential is deemed significant, emphasizing the importance of regular monitoring and maintenance to prevent any potential risks to downstream communities.
Despite being classified as "Not Rated" in terms of condition assessment, Sly Number 1 serves as a crucial infrastructure for water storage and flood control in the region. With its strategic location and design, this dam continues to play a vital role in managing water resources and mitigating the impact of climate events in Charles Mix, South Dakota.
Year Completed |
1961 |
Dam Length |
280 |
Dam Height |
25 |
River Or Stream |
PLATTE CREEK-TR |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
18 |
Hazard Potential |
Significant |
Nid Height |
25 |
Platte Creek Near Platte
|
3cfs |
Firesteel Cr Near Mount Vernon Sd
|
0cfs |
White R Near Oacoma Sd
|
105cfs |
James R Near Mitchell Sd
|
659cfs |
James R Near Forestburg Sd
|
560cfs |
Ponca Creek At Verdel
|
23cfs |