Gus Allen 1 is a privately owned Earth dam located in Lyman, South Dakota, completed in 1955.
Wind
Humidity
With a height of 28 feet and a storage capacity of 46 acre-feet, this dam serves the primary purpose of water resource management in the area. The dam is under the jurisdiction of the South Dakota Department of Environment and Natural Resources (DENR), ensuring regular inspections, permitting, and enforcement to maintain its structural integrity.
Managed by the Natural Resources Conservation Service, Gus Allen 1 has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its age, the dam continues to play a crucial role in regulating water flow and storage, with a maximum discharge capacity of 630 cubic feet per second. The surrounding area, including the TR-MISSONot RatedI river/stream, benefits from the dam's ability to mitigate flooding risks and provide a reliable water supply for various purposes.
Although lacking some detailed data such as inspection dates and risk assessments, Gus Allen 1 stands as a testament to effective water resource management in South Dakota. With its strategic location and efficient design, this dam remains an essential structure for climate enthusiasts and water resource professionals alike, showcasing the importance of maintaining and monitoring critical infrastructure for sustainable development in the face of climate change.
Year Completed |
1955 |
Dam Length |
270 |
Dam Height |
28 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
46 |
Hazard Potential |
Low |
Nid Height |
28 |
White R Near Oacoma Sd
|
105cfs |
Bad R Near Fort Pierre Sd
|
7cfs |
White River Near White River
|
42cfs |
Little White R Below White River Sd
|
141cfs |
| Location | Reservations | Toilets |
|---|---|---|
Iron Nation - Lake Sharpe
|
||
West Bend State Rec Area - Pierre
|
||
Byre Lake Recreation Area
|