Aberdeen, Maryland Take I-95 North to I-295 towards NJ Turnpike. Take NJ Turnpike North to Exit 10 for I-287 North. Take I-287 North to I-80 West. Follow directions for I-80 West. Exit I-80 westbound at Exit 34 to Route 15 northbound (Sparta & Picatinny Arsenal). Go through traffic light, bear right to Picatinny Entrance (up small hill) before underpass. Stop at the Visitor Control Building on your left before the guard shack.