I'm so glad you got some pics of the tunnel before they put all that tourist stuff in there.....I liked it much better the way I remember it when we first toured it together in 2001.
Your other bridges are so cool.....I wish you could have seen Jones Bridge and Snapp Bridge before the floods took them both - both were those old iron truss bridges with the metal slats between the concrets slabs on the decks that made such horrible noise and scared little children when you crossed!