Little Blue Run
Little Blue Run is a rockfill dam located in Beaver County, Pennsylvania, built in 1977. It carries a High hazard potential classification and has a fair condition assessment.
About Little Blue Run
Little Blue Run is a dam in Beaver, Pennsylvania. The dam is owned by Firstenergy Generation, Llc (private). It impounds the Little Blue Run.
The dam stands 400 feet tall and stretches 2,100 feet across, creates a reservoir covering 770 acres, has a maximum storage capacity of 73,000 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1977, the structure is 49 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 03/26/2021.
At 400 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Pennsylvania dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Pennsylvania |
| County | Beaver |
| River/Stream | Little Blue Run |
| Coordinates | 40.62778, -80.51278 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 400 ft |
| Dam Height | 400 ft |
| Dam Length | 2,100 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 73,000 acre-ft |
| Max Storage | 73,000 acre-ft |
| Normal Storage | 64,754 acre-ft |
| Surface Area | 770 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | FIRSTENERGY GENERATION, LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 03/26/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00917 |
| Federal ID | PA00917 |
| More Info | State Dam Safety Program |