T-494 Olean Road over Trib to Mahoning Creek
FairPosted for loadArmstrong County, Pennsylvania · 1 Mile East of SR 1003 · Structure no. 000000000003379
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 26 ft
- 1 main span
- Daily traffic
- 100
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T-494 Olean Road over Trib to Mahoning Creek is a steel stringer/multi-beam or girder carrying T-494 Olean Road over Trib to Mahoning Creek in Armstrong County, Pennsylvania. It was built in 1980, so it is 45 years old, younger 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 100 vehicles a day, roughly 9% of them trucks, projected to reach 105 by 2043. The structure is 26 ft (7.9 m) long and 25 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 T-494 Olean Road over Trib to Mahoning Creek built?
It was built in 1980, making it 45 years old in 2025.
What condition is T-494 Olean Road over Trib to Mahoning 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 June 2023.
How much traffic does T-494 Olean Road over Trib to Mahoning Creek carry?
About 100 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is T-494 Olean Road over Trib to Mahoning Creek?
The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 25 ft wide.
Who owns T-494 Olean Road over Trib to Mahoning Creek?
It is owned by the Town or Township Highway Agency.