Upper Lake Royer is an earth dam located in Washington County, Maryland, built in 1898. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 12 ft12 ft tall and 550 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Upper Lake Royer
The primary purpose of Upper Lake Royer is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Washington Co Commissioners (local government). It impounds the Falls Creek-tr near Rouzerville, Pa.
The dam stands 12 feet tall and stretches 550 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1898, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 03/19/2024.
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Location
| State | Maryland |
| County | Washington |
| Nearest City | Rouzerville, Pa |
| River/Stream | Falls Creek-tr |
| Coordinates | 39.70750, -77.49830 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 550 ft |
| Year Completed | 1898 (128 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 350 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Washington Co Commissioners |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 03/19/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00157 |
| Federal ID | MD00157 |
| More Info | State Dam Safety Program |