How to reach:
To reach the tidal bench marks from the Garden State Parkway, exit at South Amboy toll and proceed north on U.S. 9 across Raritan River to the first stoplight at Smith Street, then proceed west on Smith Street for 1.6 km (1 mi) to Crows Mill Road, then proceed south on Crows Mill Road to the Gallo Asphalt Company. Get permission before proceeding to extreme east end of the wharf. The bench marks are located near Crows Mill Road. The tide gage and staff were located on a wharf owned by this company.