Live Chat I-90 Community Nearby Traffic Halfway Dam (Water dam) 2024-05-01 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Halfway Dam (Water Dam) Parkman, WY 15.06 Lodge Grass, MT 21.79 Ranchester, WY 31.77 Interstate highway exits close to Halfway Dam (Water Dam) Exit 549, i90 8.83 Exit 544, i90 8.93 Exit 1, i90 16.75 Interstate highways close to Halfway Dam (Water Dam) i90 map 8.83 i25 map 98.83 i94 map 109.79 State roads close to Halfway Dam (Water Dam) US 87 MT map 8.73 WY 345 map 11.58 WY 343 map 19.89