Main Street over Ninemile Run
PoorWestmoreland County, Pennsylvania · 1200 Ft West of SR 982 · Structure no. 000000000037008
- Built
- 1974
- 51 years old
- Condition
- Poor
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 41 ft
- 1 main span
- Daily traffic
- 1,325
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Main Street over Ninemile Run is a prestressed concrete box beam or girders - multiple carrying Main Street over Ninemile Run in Westmoreland County, Pennsylvania. It was built in 1974, so it is 51 years old, younger than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 1,325 vehicles a day, roughly 5% of them trucks, projected to reach 1,775 by 2042. The structure is 41 ft (12.5 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Main Street over Ninemile Run built?
It was built in 1974, making it 51 years old in 2025.
What condition is Main Street over Ninemile Run in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does Main Street over Ninemile Run carry?
About 1,325 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Main Street over Ninemile Run?
The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 46 ft wide.
Who owns Main Street over Ninemile Run?
It is owned by the County Highway Agency.