I know this is the CHI-STL thread, but I couldn't help but notice the blurb in your graphic regarding CHI-MOL service. $800 million? The Iowa Interstate portion of the trip, between Wyanet and Moline, is only like 65 miles, 37% of the route's distance.
Obviously, the $800 mil is not just to rebuild IAIS, but if the cost of that 65 miles is the only thing holding up construction so the trains can start running to the Quad Cities, someone might need to sit on IAIS just a little bit. Only one station needs to be built, and the BNSF portion of the route is doing just fine (though they are likely asking for capacity improvements).
According to Wikipedia, the
entire right of way and infrastructure of what is now IAIS was bought 40 years ago for $31 Million. Plug that number into the Inflation Calculator and you get a figure of $92 Million in today's dollars, only 11.5% of the projected costs of the route. And, if the assessment of track conditions is accurate, IAIS certainly isn't investing in its infrastructure. The 65 miles in question constitutes only 11% of IAIS system miles.
The state should make an offer to buy the IAIS. You get a state-owned ROW that could be used for Quad Cities and far beyond. You'd be well on the way to a dedicated line between CHI and Peoria, which could be utilized in the future as the route for CHI-STL HSR. Get Iowa to invest in the Davenport to Omaha portion (yes, I'm delusional).
CSX owns the New Rock Sub, the line between Joliet and Utica, but, from what I understand, they are only running one train a day on that line. Maybe they'd be willing to sell, or at least be more amenable to allowing passenger traffic for a reasonable price. Perhaps set up a rent-to-own arrangement.
CHI-STL HSR routed through the Illinois Valley and Peoria, rather than Normal, is 50-60 miles longer, but I don't see UP ever giving up control of the line Lincoln Service trains currently run on, and CN would be even less cooperative for an HSR route to STL via Kankakee and Champaign. Plus, 220mph HSR, running an average speed of 165mph, would blow through those 50-60 miles in 20-25 minutes. Not a deal breaker.
I'm ranting again, but, suffice it to say, a breakdown of the costs would be something worth seeing.
ETA - corrected 1984 purchase price of IAIS