The document describes a project on the New Jersey Turnpike and Garden State Parkway where 315 feet of a heavily corroded 160" x 101" corrugated metal pipe was repaired using geopolymer. Geopolymer is an inorganic polymer that was sprayed onto the corroded pipe to refurbish and waterproof the existing infrastructure without needing to be removed and replaced. The geopolymer repair solution provided a cost-effective way to extend the life of the pipe.