Jack the plate girder bridge up to increase room for flood waters... demolish and replace with a historic truss bridge... do anything but what was done here.
That's a really dumb plan.
Note how next to the future pedestrian bridge, there are 3 empty piers. This is where the RI bridge currently is
I think the Rock Island bridge is on a trail and preserved. The BNSF line is inactive or abandoned and this bridge might be the one you're thinking of:
I heard somewhere it's because there was lead in the bridge, and it restricted waterflow. Same with the rock island bridge downstream. The RI bridge will be replaced soon, so see it while you can!
Gross.
This bridge is lost and replaced by a prefab pedestrian bridge. The new bridge is 200 ft long, I guess.
Odds are good that it is gone. Phase 1 of the Downtown River Greenway Project completed June 1 2012.
The diagram on the web page says "New prefabricated 250' x 18' pedestrian bridge", "New bridge abutment" and "Remove existing abutments" among many other things. I think I got those measurements correct. They're hard to read.
Check it out for yourself:
http://www.siouxfalls.org/parks/park-planning/Projects/greenway/phase-1.aspx
Can anyone confirm that this is lost?
Sadly this bridge was destroyed last winter