South JERSEY (SOUTH) Take the New Jersey Garden State Parkway- NORTH. Exit I-280 westbound to I-80 westbound. 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.