Structure B12034CNEMUNNBI · Middlesex County, MA
Carries HWY Pond ST over Water Unknown Creek, Btwn Bayberry LN & Pnd ST.
A culvert 21 ft across. 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 | Middlesex |
| Location | Btwn Bayberry LN & Pnd ST |
| Carries | HWY Pond ST |
| Crosses | Water Unknown Creek |
| Coordinates | 42.57724, -71.26131 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.3 ft (6.5 m) |
| Max Span | 21.3 ft (6.5 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 68.2 sq m |
| Main Spans | 1 |
| Year Built | 1992 |
| Avg Daily Traffic | 4,696 (2023) |
| Lanes On Bridge | 2 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 6 — Scour calculated, stable |
| Structure Number | B12034CNEMUNNBI |
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.