Structure W030303M8DOTNBI · Norfolk County, MA
Carries ST 1 A/main ST over HWY Prison Access RD, .6 Mi SW Of Winter ST.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.
How ratings work23 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 | Massachusetts |
| County | Norfolk |
| Location | .6 Mi SW Of Winter ST |
| Carries | ST 1 A/main ST |
| Crosses | HWY Prison Access RD |
| Coordinates | 42.10563, -71.28696 |
| Material | Concrete |
| Design | Frame |
| Total Length | 22.6 ft (6.9 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 53.1 ft (16.2 m) |
| Deck Area | 111.8 sq m |
| Main Spans | 1 |
| Year Built | 1952 |
| Avg Daily Traffic | 9,857 (2025) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
| Last Inspection | February 2025 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | W030303M8DOTNBI |
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.