Structure 3311960 · Cortland County, NY
Carries Highland Road over N Br Big Brook, 3.7 Miles W Of Marathon.
Set by its lowest-rated component: Deck and Substructure at 7 of 9.
How ratings work24 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 multi-beam bridge.
| State | New York |
| County | Cortland |
| Location | 3.7 Miles W Of Marathon |
| Carries | Highland Road |
| Crosses | N Br Big Brook |
| Coordinates | 42.45159, -76.09722 |
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 73.7 sq m |
| Main Spans | 1 |
| Year Built | 1960 (reconstructed 2007) |
| Avg Daily Traffic | 158 (2019) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000003311960 |
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.