SR 79 NB over Over Lake Wilhelm
FairMercer County, Pennsylvania · New Vernon Township · Structure no. 000000000025762
- Built
- 1969
- 56 years old, rebuilt 1994
- Condition
- Fair
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 826 ft
- 13 main spans
- Daily traffic
- 6,476
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 79 NB over Over Lake Wilhelm is a prestressed concrete continuous box beam or girders - multiple carrying SR 79 NB over Over Lake Wilhelm in Mercer County, Pennsylvania. It was built in 1969 and reconstructed in 1994, so it is 56 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 6,476 vehicles a day, roughly 24% of them trucks, projected to reach 9,924 by 2032. The structure is 826 ft (251.8 m) long and 37 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 79 NB over Over Lake Wilhelm built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1994.
What condition is SR 79 NB over Over Lake Wilhelm 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 2023.
How much traffic does SR 79 NB over Over Lake Wilhelm carry?
About 6,476 vehicles per day (2023 count), of which roughly 24% are trucks.
How long is SR 79 NB over Over Lake Wilhelm?
The structure is 826 ft (251.8 m) long with a longest span of 64 ft (19.5 m) and a deck 37 ft wide.
Who owns SR 79 NB over Over Lake Wilhelm?
It is owned by the State Highway Agency.