T-470 Gardeau Road over Sinnemahoning Portage CR
FairMcKean County, Pennsylvania · 3 MI North of SR 155 · Structure no. 000000000025601
- Built
- 1930
- 95 years old, rebuilt 2010
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 31 ft
- 1 main span
- Daily traffic
- 40
- 2014 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T-470 Gardeau Road over Sinnemahoning Portage CR is a steel stringer/multi-beam or girder carrying T-470 Gardeau Road over Sinnemahoning Portage CR in McKean County, Pennsylvania. It was built in 1930 and reconstructed in 2010, so it is 95 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 40 vehicles a day, projected to reach 60 by 2034. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 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-470 Gardeau Road over Sinnemahoning Portage CR built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2010.
What condition is T-470 Gardeau Road over Sinnemahoning Portage CR 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-470 Gardeau Road over Sinnemahoning Portage CR carry?
About 40 vehicles per day (2014 count).
How long is T-470 Gardeau Road over Sinnemahoning Portage CR?
The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.
Who owns T-470 Gardeau Road over Sinnemahoning Portage CR?
It is owned by the Town or Township Highway Agency.