Angostura is a federal-owned dam located in South Dakota, specifically in Fall River County near the city of Wasta.
Wind
Humidity
Built in 1949 by the Bureau of Reclamation, Angostura serves primarily for irrigation purposes on the Cheyenne River. With a significant storage capacity of 197,100 acre-feet and a surface area of 4,706 acres, the dam plays a crucial role in managing water resources in the region.
Standing at 193 feet tall and constructed of concrete, Angostura has a hydraulic height of 136 feet and a dam length of 2,030 feet. The dam also offers recreational opportunities, in addition to its main irrigation function. Despite its high hazard potential, with a maximum discharge of 248,000 cubic feet per second, the condition assessment of Angostura is currently not available, indicating a need for further evaluation to ensure its safety and reliability for the community.
Angostura's location on the Cheyenne River, its significant storage capacity, and its dual purpose of irrigation and recreation make it a vital infrastructure for water resource management in South Dakota. As climate change continues to impact water availability and usage, dams like Angostura play a crucial role in securing water supply for agricultural and recreational needs in the region.
Year Completed |
1949 |
Dam Length |
2030 |
Dam Height |
193 |
River Or Stream |
CHEYENNE RIVER |
Primary Dam Type |
Concrete |
Surface Area |
4706 |
Hydraulic Height |
136 |
Drainage Area |
9034 |
Nid Storage |
197100 |
Structural Height |
193 |
Hazard Potential |
High |
Nid Height |
193 |