Cranes arriving for Philadelphia require low tide to fit under the spans.

The Delaware Memorial Bridge both northbound and southbound will be closed for about an hour the morning of Saturday, March 24, 2018 from 12:30 to 1:30 a.m.

The heavy lift cargo vessel ZIN HUA 16 will be passing underneath with new cranes for the port of Philadelphia.

To track the progress of this unusual vessel, see marinetraffic.com:

Position Friday afternoon ::

http://www.marinetraffic.com/en/ais/home/centerx:-75.12932/centery:38.87445/zoom:8/mmsi:636017384/shipid:588019 Info on the ship ::
Scroll down and look on the left side of the screen for the link to its current position and speed in Delaware Bay.

http://www.marinetraffic.com/en/ais/details/ships/shipid:588019/mmsi:636017384/imo:8014667/vessel:ZHEN_HUA_16