T-647 Idlewild RD over Loyalhanna Creek
FairWestmoreland County, Pennsylvania · 1500 S of SR 30 at 2043 · Structure no. 000000000036931
- Built
- 1954
- 71 years old, rebuilt 1983
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 156 ft
- 3 main spans
- Daily traffic
- 2,200
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
T-647 Idlewild RD over Loyalhanna Creek is a steel stringer/multi-beam or girder carrying T-647 Idlewild RD over Loyalhanna Creek in Westmoreland County, Pennsylvania. It was built in 1954 and reconstructed in 1983, so it is 71 years old, older than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,200 vehicles a day, roughly 5% of them trucks, projected to reach 2,750 by 2042. The structure is 156 ft (47.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-647 Idlewild RD over Loyalhanna Creek built?
It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1983.
What condition is T-647 Idlewild RD over Loyalhanna Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.
How much traffic does T-647 Idlewild RD over Loyalhanna Creek carry?
About 2,200 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is T-647 Idlewild RD over Loyalhanna Creek?
The structure is 156 ft (47.5 m) long with a longest span of 52 ft (15.8 m) and a deck 26 ft wide.
Who owns T-647 Idlewild RD over Loyalhanna Creek?
It is owned by the County Highway Agency.