George- The 1955 USGS map shows 2 tunnels south of the bridge, but they are gone in the 1969 revision.
In picture #2 I see a tunnel but don't see it on the map when I looked for it.I didn't see it listed on the county listing for bridges and tunnels.Was it removed?
Thanks,Geoff.That answers that question.It was driving me nuts looking for the tunnels.