How to reach:
To reach the tidal bench marks proceed to the Castro Street/Pt. Richmond exit 13B from I-580 west, turn left onto Castro St, right on to Chevron Way (just before the I-580 underpass), proceed through the main gate to the first stop sign (access must be arranged in advance by calling the Wharf Master at (510) 242-4388), then turn left onto Schofield St. and continue 1.0 km (0.6 mi) to paved Chevron Long Wharf causeway. The bench marks are along the road on causeway of the main fuel pier. The tide gage is located in room south of the lab.