H A Stewart
H A Stewart is an earth dam located in Westmoreland County, Pennsylvania, built in 1920. It carries a High hazard potential classification and has a fair condition assessment.
About H A Stewart
The primary purpose of H A Stewart 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 Latrobe Municipal Authority (local government). It impounds the Trout Run.
The dam stands 86 feet tall and stretches 600 feet across, creates a reservoir covering 136 acres, has a maximum storage capacity of 6,250 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1920, the structure is over a century 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 10/22/2020.
At 86 feet, this dam is taller than 97% 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 | Westmoreland |
| River/Stream | Trout Run |
| Coordinates | 40.27444, -79.25472 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 86 ft |
| Dam Height | 86 ft |
| Dam Length | 600 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 6,250 acre-ft |
| Max Storage | 6,250 acre-ft |
| Normal Storage | 3,650 acre-ft |
| Surface Area | 136 acres |
| Drainage Area | 5 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | LATROBE MUNICIPAL AUTHORITY |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/22/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00479 |
| Federal ID | PA00479 |
| More Info | State Dam Safety Program |