I-78 WB over SR 611
FairNorthampton County, Pennsylvania · 0.25 MI NW of Delaware R. · Structure no. 000000000045614
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 202 ft
- 3 main spans
- Daily traffic
- 31,800
- 2022 count
- Owner
- Toll Authority
- Local Toll Authority
About this bridge
I-78 WB over SR 611 is a prestressed concrete box beam or girders - multiple carrying I-78 WB over SR 611 in Northampton County, Pennsylvania. It was built in 1986, so it is 39 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.
It carries about 31,800 vehicles a day, roughly 24% of them trucks, projected to reach 38,500 by 2042. The structure is 202 ft (61.6 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-78 WB over SR 611 built?
It was built in 1986, making it 39 years old in 2025.
What condition is I-78 WB over SR 611 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 I-78 WB over SR 611 carry?
About 31,800 vehicles per day (2022 count), of which roughly 24% are trucks.
How long is I-78 WB over SR 611?
The structure is 202 ft (61.6 m) long with a longest span of 81 ft (24.7 m) and a deck 52 ft wide.
Who owns I-78 WB over SR 611?
It is owned by the Local Toll Authority.