I-93 NB over Cohas Brook
Good Condition64 years old38,772 vehicles/day
Location
| State | New Hampshire |
| County | Hillsborough |
| Location | .4mi N Londonderry T.l. |
| Carries | I-93 NB |
| Crosses | Cohas Brook |
| Coordinates | 42.94424, -71.38958 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 13.1 ft (4 m) |
| Deck Area | 105.6 sq m |
| Main Spans | 2 |
| Year Built | 1962 (reconstructed 2017) |
Traffic
| Avg Daily Traffic | 38,772 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
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 | 016102000014300 |