Just a reminder, Jim Crow was a horrible set of laws enacted in a few states of the old Confederacy. All that was fixed in the 1960's with the Voting Rights bills. Redlining was also outlawed in the Sixties.
All races benefit from a good highway system. People are displaced when public works are needed. When the State wants to take over private property it has to go through a legal process known as eminent domain. If you own the property you are entitled to access to the courts and just compensation. If you don't own the property you have no rights and you need to find another place to live. If you want to support the working class, give them a better way to get to work and not waste their time in gridlock.