Covered Bridge RD over Mill Brook
Good Condition8 years old96 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | Off Mill Brook Road |
| Carries | Covered Bridge RD |
| Crosses | Mill Brook |
| Coordinates | 43.91581, -71.65108 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 43.0 ft (13.1 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 27.6 ft (8.4 m) |
| Deck Area | 110.0 sq m |
| Main Spans | 1 |
| Year Built | 2018 |
Traffic
| Avg Daily Traffic | 96 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 025401830010700 |