How to reach:
To reach the tidal bench marks from where I-395 northbound splits, travel 1.0 km (0.7 mi) along I-395 northbound to the Maine Avenue S.W. exit. Take the Maine Avenue SW exit road for 0.3 km (0.2 mi) until it dead ends into Water Street S.W. Turn SE onto Water Street, S.W. and proceed to the end of Water Street to the Police and Fire Harbor Patrol Office at Pier 5. The bench marks are located along Water Street, Maine Avenue, and Pier 5, and the tide station is in a separate room located halfway along the north side of the Police building.