Live Chat I-15 Community Nearby Traffic Walstom Dam (Water dam) 2024-05-01 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Walstom Dam (Water Dam) Pendroy, MT 27.04 Brady, MT 28.08 Valier, MT 30.36 Interstate highway exits close to Walstom Dam (Water Dam) Exit 339, i15 2.66 Exit 335, i15 8.24 Exit 345, i15 8.51 Interstate highways close to Walstom Dam (Water Dam) i15 map 2.66 i90 map 191.08 i94 map 377.74 State roads close to Walstom Dam (Water Dam) MT CR 534 map 1.83 MT MT 91 map 2.21 MT CR 218 map 2.58