Structure B1664491UDOTNBI · Suffolk County, MA
Carries HWY S Bos Bps RD over Other Relief, At Access Rd..
22 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 | Massachusetts |
| County | Suffolk |
| Location | At Access Rd. |
| Carries | HWY S Bos Bps RD |
| Crosses | Other Relief |
| Coordinates | 42.33408, -71.06298 |
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 22.3 ft (6.8 m) |
| Max Span | 22.3 ft (6.8 m) |
| Deck Width | 63.3 ft (19.3 m) |
| Deck Area | 131.2 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
| Avg Daily Traffic | 19,138 (2025) |
| Truck Traffic | 19% |
| Lanes On Bridge | 4 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | Not applicable |
| Structure Number | B1664491UDOTNBI |
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.