6 bridges with vertical clearance data on US-1 in New Hampshire. Lowest: 132.5ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 132.5ft | Us 1,Scott Avenue | Daniel Street | 0.1 Mi South Maine-Nh Sl | 1921 | Map |
| 169.0ft | Us 1 | Csx(Abd) | 0.1 Mi From N Hampton Tl | 1936 | Map |
| 175.2ft | Us 1 Sb | Nhrr(Abd) | .1 Mi. From Jct Rt 101 By | 1936 | Map |
| 180.1ft | Us 1 | Piscataqua River | Nh-Maine Sl | 1921 | Map |
| 183.7ft | Us 1 Nb Ramp | Nhrr(Abd) | .1 Mi From Jct. Rt 1 | 1963 | Map |
| 227.0ft | Us 1 | Csx | 1.1Mi From Rye Tl | 1935 | Map |