Marc Gravel

Jan 11, 2024 | asce.org | Kurt Chirbas |Paul Mallory |Marc Gravel

By Kurt Chirbas, P.E., Paul Mallory, and Marc GravelThe San Diego County Water Authority recently rehabilitated sections of three large-diameter concrete tunnels within its aging First Aqueduct water conveyance system. Because the critical aqueduct could only be shut down for repairs for a limited time, traditional rehabilitation methods were not possible.