Lawrence Road over Blackwater River
Fair Condition96 years old501 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 0.3 Mi Nh 11 |
| Carries | Lawrence Road |
| Crosses | Blackwater River |
| Coordinates | 43.43245, -71.82096 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 58.1 ft (17.7 m) |
| Max Span | 47.9 ft (14.6 m) |
| Deck Width | 20.0 ft (6.1 m) |
| Deck Area | 108.0 sq m |
| Main Spans | 1 |
| Year Built | 1930 (reconstructed 1972) |
Traffic
| Avg Daily Traffic | 501 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000800980009300 |