6 bridges with vertical clearance data on I-315 in Montana. Lowest: 169.6ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 169.6ft | I 315S | Fau 5225-14Th St Sw | Great Falls | 1967 | Map |
| 175.9ft | I 315S | Int I 15 | Great Falls | 1967 | Map |
| 188.0ft | I 315S | Fau 5225-14Th St Sw | Great Falls | 1967 | Map |
| 217.5ft | Branch I 15-U.S. 8 | Rr | Great Falls | 1946 | Map |
| 227.4ft | Branch I 15-U.S. 8 | Rr | Great Falls | 1967 | Map |
| 229.0ft | Off Ramp To 14Th S | Rr | Great Falls | 1996 | Map |