West Portsmouth ST over I-93 US 4
Fair Condition26 years old4,541 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 1.4 Mi N. Jct 132 |
| Carries | West Portsmouth ST |
| Crosses | I-93 US 4 |
| Coordinates | 43.23680, -71.53899 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 258.9 ft (78.9 m) |
| Max Span | 138.1 ft (42.1 m) |
| Deck Width | 64.0 ft (19.5 m) |
| Deck Area | 1538.5 sq m |
| Main Spans | 2 |
| Year Built | 2000 |
Traffic
| Avg Daily Traffic | 4,541 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 5 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 005201250011800 |