Live Chat I-90 Community Nearby Traffic Costich Dam (Water dam) 2024-04-30 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Costich Dam (Water Dam) Fortine, MT 14.48 Rexford, MT 20.69 Stryker, MT 25.13 Interstate highway exits close to Costich Dam (Water Dam) Exit 69, i90 163.02 Exit 0, i90 163.09 Exit 68, i90 163.53 Interstate highways close to Costich Dam (Water Dam) i90 map 162.51 i15 map 222.78 i182wa map 420.79 State roads close to Costich Dam (Water Dam) US 93 MT map 1.25 MT 37 map 8.52 MT SECONDARY 567 map 48.83