I-93 SB over Nh 49
Good Condition58 years old7,613 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 0.7 Mi Thornton Tl |
| Carries | I-93 SB |
| Crosses | Nh 49 |
| Coordinates | 43.85083, -71.64636 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 89.6 ft (27.3 m) |
| Max Span | 85.0 ft (25.9 m) |
| Deck Width | 43.6 ft (13.3 m) |
| Deck Area | 363.1 sq m |
| Main Spans | 1 |
| Year Built | 1968 (reconstructed 2003) |
Traffic
| Avg Daily Traffic | 7,613 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 003501400013300 |