7 bridges with vertical clearance data on I-393 in New Hampshire. Lowest: 149.0ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 149.0ft | I-393,Us 4,Us202E | Horse Corner Road | 0.01 Mi W Nh 9 | 1988 | Map |
| 152.6ft | I-393,Us 4,Us202W | Portsmouth Street | 0.7 Mi E Eastside Drive | 1978 | Map |
| 154.2ft | I-393,Us 4,Us202W | Horse Corner Road | 0.01 Mi W Nh 9 | 1988 | Map |
| 160.8ft | I-393,Us 4,Us202 | I-93 | 0.4 Mi. E. Jct Us 3 | 1958 | Map |
| 165.0ft | I-393,Us 4,Us202 | Fort Eddy Rd | 0.2Mi E Jct I-93 | 1980 | Map |
| 168.0ft | I-393,Us 4,Us202W | Nh 9 | .5 Mi E Concord Tl | 1988 | Map |
| 184.1ft | I-393,Us 4,Us202E | Portsmouth Street | 0.7 Mi E Eastside Drive | 1978 | Map |