T-477 over Pa Tpk (I-476)
GoodMontgomery County, Pennsylvania · N of Telford near CO Lin · Structure no. 000000000052643
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 170 ft
- 2 main spans
- Daily traffic
- 200
- 1992 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
T-477 over Pa Tpk (I-476) is a prestressed concrete continuous stringer/multi-beam or girder carrying T-477 over Pa Tpk (I-476) in Montgomery County, Pennsylvania. It was built in 2015, so it is 10 years old, younger than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 200 vehicles a day, roughly 9% of them trucks, projected to reach 315 by 2030. The structure is 170 ft (51.8 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-477 over Pa Tpk (I-476) built?
It was built in 2015, making it 10 years old in 2025.
What condition is T-477 over Pa Tpk (I-476) in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.
How much traffic does T-477 over Pa Tpk (I-476) carry?
About 200 vehicles per day (1992 count), of which roughly 9% are trucks.
How long is T-477 over Pa Tpk (I-476)?
The structure is 170 ft (51.8 m) long with a longest span of 84 ft (25.6 m) and a deck 39 ft wide.
Who owns T-477 over Pa Tpk (I-476)?
It is owned by the State Toll Authority.