Ppg Rubble Dam
Ppg Rubble Dam is a masonry dam located in Allegany County, Maryland, built in 1950. It carries a Undetermined hazard potential classification.
About Ppg Rubble Dam
The primary purpose of Ppg Rubble Dam 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 Allegany County (local government). It impounds the Potomac River near North Branch.
The dam stands 11 feet tall and stretches 200 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 67 acre-feet, and collects water from a drainage area of 877 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
The most recent inspection on record was 11/03/2010. That was over 15 years ago.
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Location
| State | Maryland |
| County | Allegany |
| Nearest City | North Branch |
| River/Stream | Potomac River |
| Coordinates | 39.58020, -78.74510 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 200 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 67 acre-ft |
| Max Storage | 67 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 877 sq mi |
| Max Discharge | 10,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Allegany County |
| Owner Type | Local Government |
| Hazard Classification | Undetermined |
| Last Inspection | 11/03/2010 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00425 |
| Federal ID | MD00425 |
| More Info | State Dam Safety Program |