Plans are still being developed (and likely will be refined for years to come), but the path will have few bridges (aside from taking advantage of existing road/rail underpasses). The idea is to keep people on grade to connect with art and flowers. This will not be a bike freeway, it is a recreational amenity for office workers, residents, and college students. If someone on a bike wants to go fast, they can do that out in the country.
Most of the money for this is coming from DOT, community foundations, and even health initiatives...not necessarily the same pot that law enforcement and economic incentives get funding from.
The southwest (first) 1,800-foot portion is underway...but paving the pathway has been slow. I doubt it will get much use until other sections are connected to it (not much demand for walkers behind the MidTown body shop and Urban Ministry).