(SP RR) across SP RR tracks in St. Louis, St. Louis County, MO. Union Blvd S. 0.4 miles from jct with I70 exit 244 in St. Louis, W. on Brown Av. 0.3 miles, N. on private business park road 300’ to guard. Permission to view bridge. (N38 41.161 W90 15.693) Photos by Jack Schmidt 3-7-06.