Demo of an 8' span of 5 1/4" thick concrete, 25" high area of spalled concrete, removed down to where un-oxidized or salvagable rebar with minor oxidation was reached. All unsalvagable steel reinforcement , both vertical and horizontal, were removed. Vertical steel reinforcement replaced with 3/4" galvanized all-thread. Horizontal steel replaced with #4, 1/2" steel rebar.