Located in St.
Wind
Humidity
Mary's County, Maryland, St Marys River Watershed Site 1, also known as St Marys River State Park Dam, is a crucial flood risk reduction structure designed by Allan Stahl of the USDA NRCS. Completed in 1975, this earth dam stands at a height of 38 feet and spans 1670 feet, serving as a vital component in managing water flow along the Western Branch of the St. Marys River.
With a normal storage capacity of 3200 acre-feet and a maximum discharge of 20576 cubic feet per second, this dam plays a significant role in protecting the surrounding area from flooding while also providing recreational opportunities for the local community. However, recent assessments have indicated a poor condition of the dam, with a high hazard potential and a moderate risk level, making regular inspections and maintenance crucial for ensuring its continued effectiveness.
In addition to flood risk reduction, St Marys River Watershed Site 1 is also regulated by the Maryland Dam Safety agency, reflecting the state's commitment to ensuring the safety and functionality of its water infrastructure. As climate change continues to impact water resources, the maintenance and proper management of dams like this one become increasingly important in safeguarding communities and ecosystems against the threats of extreme weather events and rising water levels.
Year Completed |
1975 |
Dam Length |
1670 |
Dam Height |
38 |
River Or Stream |
Western Br, St. Marys River |
Primary Dam Type |
Earth |
Surface Area |
250 |
Drainage Area |
8.8 |
Nid Storage |
9600 |
Outlet Gates |
Slide (sluice gate) - 0 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
38 |