Structure 57186 · McKean County, PA
Carries Huffman Farm Road over Red Mill Brook, Elk State Forest.
Set by its lowest-rated component: Deck and Superstructure at 7 of 9.
How ratings work20 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a rigid-frame bridge.
| State | Pennsylvania |
| County | McKean |
| Location | Elk State Forest |
| Carries | Huffman Farm Road |
| Crosses | Red Mill Brook |
| Coordinates | 41.70819, -78.46225 |
| Material | Concrete |
| Design | Frame |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 22.6 ft (6.9 m) |
| Deck Area | 42.1 sq m |
| Main Spans | 1 |
| Year Built | 2019 |
| Avg Daily Traffic | 10 (2024) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Last Inspection | July 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Park/Forest Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000057186 |
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.