I-93 SB over Old Nh 3b
Fair Condition64 years old14,214 vehicles/day
Location
| State | New Hampshire |
| County | Belknap |
| Location | Tilton-sanborton Tl |
| Carries | I-93 SB |
| Crosses | Old Nh 3b |
| Coordinates | 43.47930, -71.59011 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 134.8 ft (41.1 m) |
| Max Span | 52.8 ft (16.1 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 550.7 sq m |
| Main Spans | 3 |
| Year Built | 1962 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 14,214 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 023101520003900 |