St Marys River Watershed Site 1
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Maryland |
| County | St. Mary's |
| Nearest City | Great Mills |
| River/Stream | Western Br, St. Marys River |
| Coordinates | 38.25190, -76.53440 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 1,670 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 9,600 acre-ft |
| Max Storage | 9,600 acre-ft |
| Normal Storage | 3,200 acre-ft |
| Surface Area | 250 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 20,576 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MD DNR-Public Lands, Engineering & Constr-Southern |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 11/15/2024 |
| Emergency Action Plan | Yes |