Structure H23031CM4MUNNBI · Middlesex County, MA
Carries HWY Fox Hllow RD over Water Wetland, 2.6 Mi NW Of Ex 54/w Main.
Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.
How ratings work20 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 | Middlesex |
| Location | 2.6 Mi NW Of Ex 54/w Main |
| Carries | HWY Fox Hllow RD |
| Crosses | Water Wetland |
| Coordinates | 42.21478, -71.58556 |
| Material | Concrete |
| Design | Frame |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 56.4 sq m |
| Main Spans | 1 |
| Year Built | 2015 |
| Avg Daily Traffic | 390 (2024) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Last Inspection | March 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 6 — Scour calculated, stable |
| Structure Number | H23031CM4MUNNBI |
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.