Once upon a time, you could take Booth Road north over a bridge, take a jog to the left, pick up Gallaher and end up on Rte. 273, but the bridge has been closed. Booth Road deadends at a jersey barrier just past Barnett Drive, so there's space to park near ground zero.
Original cache was buried by road maintenance, and has been replaced with a different sort of nano cache container near the original location.
Aaaaaand the second container went missing. Third try: now a bison.