SR2059(W.ROCK Rd.) over I-78 & Pa 309
FairLehigh County, Pennsylvania · Summit Lawn Exit #59(19) · Structure no. 000000000023070
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected October 2022
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 294 ft
- 2 main spans
- Daily traffic
- 5,666
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR2059(W.ROCK Rd.) over I-78 & Pa 309 is a steel continuous stringer/multi-beam or girder carrying SR2059(W.ROCK Rd.) over I-78 & Pa 309 in Lehigh County, Pennsylvania. It was built in 1988, so it is 37 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 5,666 vehicles a day, roughly 3% of them trucks, projected to reach 11,078 by 2032. The structure is 294 ft (89.6 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 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 SR2059(W.ROCK Rd.) over I-78 & Pa 309 built?
It was built in 1988, making it 37 years old in 2025.
What condition is SR2059(W.ROCK Rd.) over I-78 & Pa 309 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 October 2022.
How much traffic does SR2059(W.ROCK Rd.) over I-78 & Pa 309 carry?
About 5,666 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is SR2059(W.ROCK Rd.) over I-78 & Pa 309?
The structure is 294 ft (89.6 m) long with a longest span of 160 ft (48.8 m) and a deck 48 ft wide.
Who owns SR2059(W.ROCK Rd.) over I-78 & Pa 309?
It is owned by the State Highway Agency.