The CW Urban development near the Jordan River jives with what I would like to see done in that area:
Explanation:
The pink and yellow lines are new and relocated railroad tracks (pink being new commuter tracks and yellow being relocated UP tracks).
By consolidating the tracks in one corridor, instead of two that split around the old factory, there will be enough space beneath the big pedestrian bridge for 100 South to be extended below the pedestrian bridge and then across the Jordan River(the dark gray shape). Then it would connect into Navajo Street. This road will be for local traffic only, and it will have generous sidewalks and pedestrian space. It will effectively create another pedestrian crossing of the Jordan River.
The the green shape is a proposed park, and the blue line is City Creek. I want to see it daylighted all the way back to 600 West (only possible with the Rio Grande plan relocation of railroad tracks). I checked the flow rates of City Creek, and it looks like in the spring time (May-early July) there is enough flow to create a channel about 10-15 feet wide and 1-2 feet deep. This means people could get in tubes and raft down the river from 600 West to the Jordan River, or about 1 mile exactly. In the rest of the year, there would be enough water for wading or fishing or whatever else.
I have been super jealous of Boise and their greenbelt for a long time, and I'm intrigued by the idea we could create one of our own to branch off from the Jordan River, and reach as far downtown as basically the Gateway.
See the full google map in the Rio Grande link in my signature line.