Right you are, Robert! Below is a link regarding the replacements of Bridges #12 and 13 on the Katy Trail in Missouri. One was a pony truss bridge on a trail, and still did not manage to escape execution by whoever is responsible for these structures and the maintenance of them. The Katy Trail has a great number of beautiful steel truss bridges, and hopefully this disturbing occurrence is not the beginning of a devastating trend of replacement of bridges on the trail. These bridges are not the only historic bridges to be replaced along the trail, either. A massive Pratt through truss was also replaced, but I can't seem to find any information on it. Please note also that these replacements were still carried out DESPITE strong, outspoken opposition from the general public!
Just because a historic bridge carries a pedestrian trail over a creek does not guarantee that it won't be replaced with a MOB...
This bridge took the Indian Creek Bike and Hike Trail over the Indian Creek linking Overland Park and Leawood. The former El Monte/Mission Road used this bridge previously before Mission Road was realigned to the east. The old truss structure has been replaced in late 2008 with a typical bridge that is used throughout the county on bike and hike trails.
Sorry, I just noticed that the link didn't make it into my comment. Brainiac!
http://www.gocolumbiamo.com/ParksandRec/Parks/MKT_Trail/cip_...