LBJ and his WPA project covered the Dealey Plaza sewers. SW BELL WESTERN UNION ------ Sewers of Dealey Plaza 1947 FROG; Excerpts from “History of the Dallas Floodway” by John N. Furlong, P.E., Greg Ajemian, P.E., and Ms. Tommie McPherson, P.E. Excerpts from “Small Army Man's Vast Underground of Dallas” (1947) by Ben Bradford. “Dallas has a vast underground. It’s a little known world, made up of tunnels, basements, sub-basements, manhole vaults and sewers that catacomb the city. And, it’s