They say it will be reused in a spring valley park according to this paper
http://fillmorecountyjournal.com/print.asp?ArticleID=24066&SectionID=56&SubSectionID=161
Depends really. One bridge had what appeared to be inmates from a correctional facility wail away at it in no real organized fashion as its demolition. You'd like to be able to save at least some of them. What is society going to be able to show people in the future? A dry musty tome on design? Some grainy images scanned online? Or the Real McCoy?
Some of these photos make me wonder if the old bridge might be planned for relocation, though--normally, if the bridge were just being demolished, they would either dismantle the bridge piece by piece, or just use an excavator or some other large piece of equipment to shove it over and let it fall into the river. This one looks like it was lifted in one piece and set aside, as if it were going to be reused. Hope springs eternal? This is Fillmore County, so there is a glimmer of hope, anyway. Fillmore County treats its historic truss bridges far better than any other county in Minnesota.
Another Truss bridge LOST TO MNDOT
1st pic- barrel shot
2nd pic- builders plate's hard to read but was built by Minneapolis Bridge and Iron Works 1914
3rd pic- Damaged deck railing