Speaking of Fifield, he claims to be moving forward on his Kennedy Cap park.
http://www.gazettechicago.com/index/...dy-expressway/
The cost is still pegged at $45-60M, which still seems insanely low to me. Dallas built a similar park at half the size (5.5 acres vs 11) for $110M, and is still raising additional funds to build certain amenities within the park. Plus, Dallas is a city with
low construction costs, due in part to the use of non-union labor, which Chicago has very high construction costs for public projects. Maybe Fifield has gotten creative with the structural system, but if not, I can't see the cost figure making any sense.