Nissan and Walmart say they have effective plans to minimize impact of West Coast port delays.
First lock gate for new Pacific entrance of the canal was installed.
Despite presence of federal mediator 'no further agreements have been reached.'
Port of Long Beach CEO said ports are in a "perfect position" to play this role.
Flexi-Van executive says "misplaced" chassis have aggravated congestion.
ICTSI Oregon says actions against it are "far beyond what other West Coast ports are experiencing."