The Trammell bridge over the Apalachicola River, by chance?
jlam, You are correct!
For those who don't know of this bridge, it is part of FL 20 in the Florida panhandle, crossing the Apalachicola River between the towns of Blountstown and Bristol. It is also the boundary between the Eastern and Central time zones.
The older bridge in the foreground is the original crossing, carrying two lanes (one each way) of FL 20, and was built in 1938. I drove over this bridge quite a few times in the late 1970's commuting between home and college.
The newer bridge was built in 1998, parallel to the older bridge. I believe it was at this time that it was named "Trammell". The newer bridge carries two lanes eastward, the older bridge was restriped for one lane westward. Presumably it was considered too narrow by modern standards for two lanes. I haven't been there since before the new bridge was built.