Live Chat I-25 Community Nearby Traffic John Martin Reservoir Dam (Water dam) 2024-04-28 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to John Martin Reservoir Dam (Water Dam) McClave, CO 12.02 Fort Lyon, CO 14.55 Las Animas, CO 21.09 Interstate highway exits close to John Martin Reservoir Dam (Water Dam) Exit 395, i70 139.04 Exit 405, i70 139.62 Exit 412, i70 140.67 Interstate highways close to John Martin Reservoir Dam (Water Dam) i70 map 139.04 i25 map 147.41 i225co map 243.90 State roads close to John Martin Reservoir Dam (Water Dam) US 50 CO map 8.24 CO 196 map 11.69 CO 183 map 17.98