Structure 9501660013800 · Hillsborough County, NH
Carries Pollard Road over Black Brook, Town Road.
A culvert 23 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 | Hillsborough |
| Location | Town Road |
| Carries | Pollard Road |
| Crosses | Black Brook |
| Coordinates | 43.03969, -71.52075 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Area | 51.1 sq m |
| Main Spans | 1 |
| Year Built | 2008 |
| Avg Daily Traffic | 208 (2023) |
| Lanes On Bridge | 2 |
| Last Inspection | July 2023 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 4 — Foundations need monitoring |
| Structure Number | 009501660013800 |
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.