It may seen ironic at first glance that the U.S. Army Corps of Engineers and the U.S. Bureau of Reclamation are fasttracking a $900-million effort to address flood-risk and dam-safety issues at Folsom Dam, located near Sacramento, Calif., amid a headline-making, ongoing drought.

ENR’s “Low & Slow Across America’s Infrastructure” tour started with a basic idea: Drive a car as old as the interstate highway system across the U.S. to identify infrastructure progress and critical needs.