(Wilcox Blvd, c1930) under Missionary Ridge in Chattanooga, Hamilton County, TN. TN389 (4th St.) E. 1.0 miles from jct with I124 in Chatanooga, merges into TN58 (Riverfront Pky) & curves N. 1.3 miles, E. on Wilcox Blvd 1.4 miles to the tunnel. (N35 03.017 W85 15.062) Photo by Jack Schmidt 7-18-08.