Structure W330030NXMUNNBI · Franklin County, MA
Carries HWY Swamp RD over Water Mill River, .4 Mi SW Of US RTE 5.
A culvert 24 ft across with 2 openings. 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, so those are drawn as typical for a culvert.
| State | Massachusetts |
| County | Franklin |
| Location | .4 Mi SW Of US RTE 5 |
| Carries | HWY Swamp RD |
| Crosses | Water Mill River |
| Coordinates | 42.44699, -72.63271 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 23.6 ft (7.2 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 43.9 sq m |
| Main Spans | 2 |
| Year Built | 1993 |
| Avg Daily Traffic | 1,422 (2016) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Last Inspection | July 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | W330030NXMUNNBI |
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.