Structure 2421 · Aroostook County, ME
Carries Chapman RD over Arnold Brook, 2.0 Mi SW Of Jct Us1.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 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 slab bridge.
| State | Maine |
| County | Aroostook |
| Location | 2.0 Mi SW Of Jct Us1 |
| Carries | Chapman RD |
| Crosses | Arnold Brook |
| Coordinates | 46.65857, -68.04586 |
| Material | Concrete |
| Design | Slab |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 76.7 sq m |
| Main Spans | 1 |
| Year Built | 1928 (reconstructed 1965) |
| Avg Daily Traffic | 970 (2016) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 2421 |
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.