Visit Website Get Directions Naval Ammunition Depot Visit Website Get Directions 3 mi. E. of Hastings on US Hwy 6 Hastings, NE 68902 Phone: (402) 461-2370 About Largest U.S. WWII ammunition plant. Bunkers, buildings and covered walkways. Self-guided driving tours year-round. Call or stop at the Hastings Visitors Center at 100 N. Shore Drive for a map of the area and more information.