Structure 8600990014600 · Hillsborough County, NH
Carries Pleasant Pond Road over Collins Brook, 1.53 Mi. RTE 47.
Set by its lowest-rated component: Deck and Superstructure at 7 of 9.
How ratings work24 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 | New Hampshire |
| County | Hillsborough |
| Location | 1.53 Mi. RTE 47 |
| Carries | Pleasant Pond Road |
| Crosses | Collins Brook |
| Coordinates | 43.01689, -71.82216 |
| Material | Concrete |
| Design | Frame |
| Total Length | 23.6 ft (7.2 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 65.5 sq m |
| Main Spans | 1 |
| Year Built | 2010 |
| Avg Daily Traffic | 159 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 008600990014600 |
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.