I second the comment by Anonymous. Nathan Holth's website historicbridges.org is a great place to get started learning how to advocate for a bridge.
I am the Mayor of Linn Creek Missouri and it is upsetting to hear MODOT is going to tear down this bridge and replace with one to the right of the old bridge.
Modot plan will cost the City at least $40,000. to relocate water and sewer pipes attached to the old bridge.
I believe this old bridge has historic value and should not be relocated.
Why not leave as a foot bridge for all the bicycle and runners in the area.
Anyone with information on the historic value of this bridge, please contact me at: ginnymueller46@yahoo.com
Respectfully,
Ginny Mueller,
Mayor
City of Linn Creek
My guess is, that MODOT would be willing to leave the historic bridge standing next to its replacement if the city were willing to take ownership and responsibility of the bridge. Might not even matter if the bridge is historic or not in that scenario. As for getting MoDOT to rehab the bridge for continued vehicular use or continued MoDOT ownership without vehicular use, that would be a steep uphill battle, based on my own personal experience trying to get MoDOT to choose preservation over replacement of other historic bridges.