Lake Helene Dam
High HazardSatisfactory ConditionEmergency Action Plan: No
Location
| State | Maryland |
| County | Montgomery |
| Nearest City | Gaithersburg |
| River/Stream | Muddy Branch-TR |
| Coordinates | 39.11933, -77.24070 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 420 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 177 acre-ft |
| Max Storage | 177 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 253 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Gaithersburg |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/18/2024 |
| Emergency Action Plan | No |