Beginning to Consider the Construction of a Well-Known Road

As the title suggests, in his article, "Looking back: I-496 construction: A complicated Legacy,"  Matthew Miller attempts to look at all of the angles in an introductory piece about a traffic project that changed the city of Lansing--the construction of Interstate 496.  Miller introduces several perspectives:

"the largest black neighborhood...eviscerated by the unyielding logic of federal highway construction..."
"he dreams of a neighborhood cut in half to make way for Interstate 496".
"It cut out the heart of a neighborhood..."
"the trade-off was worth it..."
"some black people gained a foothold in neighborhoods where they hadn't been allowed to live previously..."
"the project would destroy more houses owned by whites"
"we were able to get other places that were better..."

In this way, Miller focuses on two main perspectives--that the project was implemented with complete disregard for the lives of those living in the neighborhoods which would be affected--particularly blacks.  The other, that this interstate provided affected black families with more opportunities than they otherwise would have had.

The article did leave me wondering about a few other perspectives, however.  What about the perspective of those who designed the project and decided how to implement it? What about the perspective of the state? The article speedily accuses the state without offering their point of view.  What was the decision-making process like from the perspective of those who went through it?

The article also suggests differing outcomes of the project. What was the ultimate effect on the racial climate and dynamics in Lansing as a result of the new interstate? How did whites and blacks each feel about how things changes because of the uprooting and removal of large portions of a neighborhood in the heart of Lansing?

On a different note, concerning the research that our class's investigation into this "public history" will inevitably entail, I noticed Miller referred us to a few sources: 1) the basement of the Capital Area District Library's downtown branch 2) master's theses--specifcally Bruce Brown's 3) YMCA where Dubose stayed 4) the articles listed at the end of Miller's article

What other sources should we be looking for? What should we expect to find at the sources Miller handed us that he may have left out?