Tetra Tech Wins Orange County Wastewater Conveyance Project of the Year
The American Society of Civil Engineers Orange County Branch presented Tetra Tech with the 2014 Wastewater Conveyance Project of the Year Award at their annual awards dinner in February 2015 in Costa Mesa, California. Tetra Tech received this honor for our work on the Santa Ana Regional Interceptor relocation project.
The $50 million project relocated four miles of existing sanitary sewer out of the Santa Ana River floodplain in the City of Yorba Linda, California, to protect the exiting brine and non-reclaimable-waste line from flood flows. Tetra Tech was contracted by the Orange County Flood Control District to complete the preliminary and final design.
Microtunneling was used extensively on the project due to the depth of pipe installation and to avoid construction impacts to the community and the environment along the river. The project used the latest technology, Herrenknecht microtunnel boring machines, on five drives through extremely abrasive soil conditions in environmentally sensitive areas. This project set a record for the longest curved microtunnel and the first-ever double compound curved microtunnel.
Learn more about the project here.