Mill Brook Road over Mill Brook
Fair Condition98 years old177 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 3.3 Mi S. Jct. 302 |
| Carries | Mill Brook Road |
| Crosses | Mill Brook |
| Coordinates | 44.16819, -71.89165 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 23.3 ft (7.1 m) |
| Deck Area | 54.0 sq m |
| Main Spans | 1 |
| Year Built | 1928 |
Traffic
| Avg Daily Traffic | 177 (2023) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 014201040013100 |