Sullivan Drive over Mill Brook
Good Condition40 years old96 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 0.19 Mi Fr Millbrook RD |
| Carries | Sullivan Drive |
| Crosses | Mill Brook |
| Coordinates | 43.92569, -71.61932 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 44.9 ft (13.7 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 112.3 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 96 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 025401750014100 |