Structure 31792 · Somerset County, PA
Carries Pa Tpk (i-76) over Crab Run, East Of Laurel Summit.
A culvert 22 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Pennsylvania |
| County | Somerset |
| Location | East Of Laurel Summit |
| Carries | Pa Tpk (i-76) |
| Crosses | Crab Run |
| Coordinates | 40.07200, -79.15991 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Area | 155.4 sq m |
| Main Spans | 1 |
| Year Built | 1939 |
| Avg Daily Traffic | 31,991 (2004) |
| Truck Traffic | 35% |
| Lanes On Bridge | 4 |
| Last Inspection | August 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Toll Authority |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000031792 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.