Pa Tpk (I-476) over T-645
GoodMontgomery County, Pennsylvania · Near Mid-County Interchan · Structure no. 000000000048848
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected June 2022
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 50 ft
- 1 main span
- Daily traffic
- 65,329
- 2004 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
Pa Tpk (I-476) over T-645 is a prestressed concrete box beam or girders - multiple carrying Pa Tpk (I-476) over T-645 in Montgomery County, Pennsylvania. It was built in 2014, so it is 11 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 65,329 vehicles a day, roughly 16% of them trucks, projected to reach 94,986 by 2030. The structure is 50 ft (15.2 m) long and 123 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Pa Tpk (I-476) over T-645 built?
It was built in 2014, making it 11 years old in 2025.
What condition is Pa Tpk (I-476) over T-645 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 June 2022.
How much traffic does Pa Tpk (I-476) over T-645 carry?
About 65,329 vehicles per day (2004 count), of which roughly 16% are trucks.
How long is Pa Tpk (I-476) over T-645?
The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 123 ft wide.
Who owns Pa Tpk (I-476) over T-645?
It is owned by the State Toll Authority.