Little Seneca Dam
High HazardFair ConditionEmergency Action Plan: No
Location
| State | Maryland |
| County | Montgomery |
| Nearest City | Germantown |
| River/Stream | Little Seneca Creek |
| Coordinates | 39.18500, -77.30000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 99 ft |
| Dam Height | 99 ft |
| Dam Length | 628 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 24,185 acre-ft |
| Max Storage | 24,185 acre-ft |
| Normal Storage | 13,050 acre-ft |
| Surface Area | 505 acres |
| Drainage Area | 20 sq mi |
| Max Discharge | 73,292 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Washington Suburban Sanitary Commission |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 05/30/2024 |
| Emergency Action Plan | No |