Structure 21702310010300 · Rockingham County, NH
Carries Maplewood Avenue over North Mill Pond, 0.2 Mi E Jct US 1 Bypass.
A culvert 25 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 | New Hampshire |
| County | Rockingham |
| Location | 0.2 Mi E Jct US 1 Bypass |
| Carries | Maplewood Avenue |
| Crosses | North Mill Pond |
| Coordinates | 43.07969, -70.76543 |
| Material | Masonry |
| Design | Culvert |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Area | 74.5 sq m |
| Main Spans | 1 |
| Year Built | 1940 (reconstructed 1976) |
| Avg Daily Traffic | 5,829 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2024 |
| Inspection Frequency | Every 16 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 021702310010300 |
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.