SR 4006 Porter RD over Little Shenango River
Good Condition21 years old1,392 vehicles/day
Location
| State | Pennsylvania |
| County | Mercer |
| Location | West Salem Township |
| Carries | SR 4006 Porter RD |
| Crosses | Little Shenango River |
| Coordinates | 41.42184, -80.39915 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 136.2 ft (41.5 m) |
| Max Span | 131.9 ft (40.2 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 448.2 sq m |
| Main Spans | 1 |
| Year Built | 2005 |
Traffic
| Avg Daily Traffic | 1,392 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000042876 |