I-93 SB over Bay Street
Good Condition66 years old15,417 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 1.7mi S. Tilton T.l. |
| Carries | I-93 SB |
| Crosses | Bay Street |
| Coordinates | 43.43838, -71.58109 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 101.0 ft (30.8 m) |
| Max Span | 37.1 ft (11.3 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 412.7 sq m |
| Main Spans | 3 |
| Year Built | 1960 (reconstructed 1985) |
Traffic
| Avg Daily Traffic | 15,417 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 019601080014100 |