In American history, there are three times that can be called "big infrastructure" era. The first time was Roosevelt's New Deal. The second time was Eisenhower's highway construction. The third time is Biden's "trillion" infrastructure. The first two times have been proved by history to have a great effect on economy and employment. Biden's visit has just begun, and it remains to be seen what role it can play.
The United States was founded in 1776, and it has been nearly 250 years. The real large-scale infrastructure was concentrated in recent years 100. There was no infrastructure before 150, but it was mainly local and was done by local governments; There is no big move at the federal level, and there are only a handful of national infrastructure. This 150 years has been wasted in terms of large-scale infrastructure.