Twin Bridge Road over Whichier Brook
Good Condition28 years old96 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 40 Ft Fr Belmont Tl |
| Carries | Twin Bridge Road |
| Crosses | Whichier Brook |
| Coordinates | 43.43547, -71.51677 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Area | 40.9 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 96 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 019601730013400 |