Structure 12981 · Crawford County, PA
Carries SR 79 SB over Over Rock Creek, Greenwood Township.
A culvert 20 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 | Crawford |
| Location | Greenwood Township |
| Carries | SR 79 SB |
| Crosses | Over Rock Creek |
| Coordinates | 41.51011, -80.17224 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Area | 44.5 sq m |
| Main Spans | 1 |
| Year Built | 1969 |
| Avg Daily Traffic | 6,474 (2023) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
| Last Inspection | April 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000012981 |
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.