In the spillway, cracks and construction joints were chipped out as per the specification to repair it with a first layer of Xypex Patch’n Plug followed by a second layer of Xypex Megamix II. Nozzles were also fixed along the cracks, construction joints and honeycombed concrete which were grouted with a specified mix of Xypex Admix C-2000 NF, cement and fine silica. Xypex Megamix II was then applied to the entire surface of the spillway and a two coat application of Xypex Concentrate was applied to the mortar repaired surface to provide extra protection.