Container lines are blaming massive port congestion in Southern California for mounting losses.

The companies say they are losing money as bottlenecks on the US West Coast [USWC] threaten to wipe out their hard-earned efficiency gains.

In the major ports of Los Angeles and Long Beach, the congestion has reached “a critical point,” says Hapag-Lloyd, which operates to the region as a member of the G6 Alliance.

The