Structure 3476 · Oxford County, ME
Carries Vernon ST over Mill Brook, 2.2 Mi Sly Of Greenwood.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work25 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 | Oxford |
| Location | 2.2 Mi Sly Of Greenwood |
| Carries | Vernon ST |
| Crosses | Mill Brook |
| Coordinates | 44.34227, -70.76120 |
| Material | Concrete |
| Design | Slab |
| Total Length | 24.6 ft (7.5 m) |
| Max Span | 19.7 ft (6 m) |
| Deck Width | 24.9 ft (7.6 m) |
| Deck Area | 57 sq m |
| Main Spans | 1 |
| Year Built | 1939 |
| Avg Daily Traffic | 356 (2016) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2023 |
| 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 | 3476 |
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.