Here are photos of the Illinois Rt 53 bridge over the railroad at the south edge of Gardner. They were taken after completion in 1929 by Art Kistler, an IDOT employee. This structure was replaced in 2000.
Your marker on the map is in the wrong place. This bridge was north of Gardner over a branch rail line that runs north. The marker you are showing is for a simple deck girder bridge over the main line railroad running from Chicago to St. Louis at the south edge of Gardner near where the exit comes off I-55 into Gardner. It was replaced a few years back and still exists today. The Braceville Bridge was demolished in the 80's. You used to be able to see it off in the distance east of the current I-55 highway.
The bridge in fact is north of Gardner, near Braceville. There was debate near the same period of time over two bridges in this area for reconstruction. One being this bridge, and one bridge at the point that is on the map in Gardner. The one in Gardner is a simple viaduct over the UP. When IDOT decided not to fix the Braceville bride IL 129 was pulled back to end at IL 113. Below on this page is some pictures I have from the site after the bridge was removed.
The coordinates indeed are off a bit. The town the bridge is pinned at on the map is Gardner, not Braceville. The bridge was over the railroad tracks between Gardner and Braceville, at the Mazonia railroad junction. I used to see the bridge from I-55 when I was a kid and we'd drive up to Chicago. Later on, I used to go under the bridge on Amtrak trains, when Amtrak used to get rerouted from UP to BNSF tracks at Joliet, then used an old GMO and Santa Fe connector from Coal City to Mazonia. The main span was over the railroad, not the creek, but I think the approach spans did go over the creek, if I recall correctly. I've attached an old USGS areal picture of it I found some years ago. You can see the shadow cast by the bridge and the GMO/SF connector splitting off from the GMO (now UP) and heading north to Coal City. This was a grand bridge and a shame we have lost it.
From MS Streets & Trips, the approximate coordinates would be:
I believe the posted coordinates are on the wrong side of town. I remember this bridge further north at