Turnpike Road over Mill Brook
Good Condition41 years old143 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 1.32 Mi. RTE 4 |
| Carries | Turnpike Road |
| Crosses | Mill Brook |
| Coordinates | 43.58057, -71.93945 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 40.0 ft (12.2 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 25.6 ft (7.8 m) |
| Deck Area | 95.2 sq m |
| Main Spans | 1 |
| Year Built | 1985 |
Traffic
| Avg Daily Traffic | 143 (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 | 009901620010600 |