I am not sure we need it in the short run, but large infrastructure projects sometimes dramatically reshape economies over a long period. This may simply be due to ‘inflation’– projects will be vastly more expensive and complex later on.

$8 Billion Suez Canal Expansion That the Shipping World May Not Need – Supply Chain 24/7.
Bold step: Ports of Seattle, Tacoma vote to formally launch The Northwest Seaport Alliance
The Northwest Seaport Alliance just became the third-largest cargo gateway in the U.S.