King Thorne RD 355 over Wilson Run
PoorWestmoreland County, Pennsylvania · 83 Ft So Int T355 & T479 · Structure no. 000000000036904
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 43 ft
- 1 main span
- Daily traffic
- 54
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
King Thorne RD 355 over Wilson Run is a prestressed concrete box beam or girders - multiple carrying King Thorne RD 355 over Wilson Run in Westmoreland County, Pennsylvania. It was built in 1979, so it is 46 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 54 vehicles a day, roughly 2% of them trucks, projected to reach 65 by 2044. The structure is 43 ft (13.1 m) long and 65 ft wide. If it were closed, the detour would be 98.8 mi (159 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 |
|---|---|---|
| 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 King Thorne RD 355 over Wilson Run built?
It was built in 1979, making it 46 years old in 2025.
What condition is King Thorne RD 355 over Wilson 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 March 2024.
How much traffic does King Thorne RD 355 over Wilson Run carry?
About 54 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is King Thorne RD 355 over Wilson Run?
The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 65 ft wide.
Who owns King Thorne RD 355 over Wilson Run?
It is owned by the Town or Township Highway Agency.