SR 4006 Porter RD over Little Shenango River
GoodMercer County, Pennsylvania · West Salem Township · Structure no. 000000000042876
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected November 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 136 ft
- 1 main span
- Daily traffic
- 1,392
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 4006 Porter RD over Little Shenango River is a prestressed concrete stringer/multi-beam or girder carrying SR 4006 Porter RD over Little Shenango River in Mercer County, Pennsylvania. It was built in 2005, so it is 20 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 1,392 vehicles a day, roughly 5% of them trucks, projected to reach 1,917 by 2032. The structure is 136 ft (41.5 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 4006 Porter RD over Little Shenango River built?
It was built in 2005, making it 20 years old in 2025.
What condition is SR 4006 Porter RD over Little Shenango River 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 November 2022.
How much traffic does SR 4006 Porter RD over Little Shenango River carry?
About 1,392 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is SR 4006 Porter RD over Little Shenango River?
The structure is 136 ft (41.5 m) long with a longest span of 132 ft (40.2 m) and a deck 35 ft wide.
Who owns SR 4006 Porter RD over Little Shenango River?
It is owned by the State Highway Agency.