Big Truck Pete - Thank you for the amplification. I took a drive over to Hinsdale yesterday and was surprised to find descriptive and quite informative signs for the bridge work, with shading for the "shoo flys".
Appreciate your description of biking the area as a kid. Had a friend who lived on the north side of Hinsdale and we would also bike over to LaGrange, to visit the old LaGrange Hobby Shop (located on Calendar, not LaGrange Rd). But we used a foot bridge over the Toll Road up around Ravine Street. My friend was a Rio Grande enthusiast, so we pretended to be double headed K36's !!! We would stop in at Gordon's Hobby Shop, across from the Stone Ave station, too. That was in the halcyon days of the later 1950's. Sweet memories.