I-393 US 4 Us202 over Merrimack River
Fair Condition48 years old40,527 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 0.6 Mi East Of Jct I-93 |
| Carries | I-393 US 4 Us202 |
| Crosses | Merrimack River |
| Coordinates | 43.21950, -71.52335 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 524.9 ft (160 m) |
| Max Span | 200.1 ft (61 m) |
| Deck Width | 91.9 ft (28 m) |
| Deck Area | 4,480 sq m |
| Main Spans | 3 |
| Year Built | 1978 (reconstructed 2003) |
Traffic
| Avg Daily Traffic | 40,527 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 005201540012300 |