It's not just Jackson, or the state of Mississippi. The US has overbuilt infrastructure since WW2. All of it was built on the assumption that infrastructure investment
always leads to a massive expansion of the tax base and easily pays for itself, when in reality more and more of our investments have had a negative ROI. This is going to be the new normal for the US as many cities have continues to expand outward for decades, incurring ever greater maintenance liability, without accompanying economic growth to support the maintenance burden.
You've seen a lot of Strong Towns posts on HN, this is the issue that ST was founded on and the focus of it's advocacy.
The best short explainer is here: https://youtu.be/7IsMeKl-Sv0
You can read a lot more about maintenance here if you're interested: https://www.strongtowns.org/journal/tag/Maintenance