Tuolumne FM

The primary requirement of this two-phased project was to replace the existing 6-inch cast iron force sewer main and encase this new sewer main in concrete. The location of the existing line ran through a section of the Tuolumne River high above the Yosemite Valley. A combination of cofferdams, bypass pumps and pipe culverts were used to divert the river and provide access for the crews to complete their work. The new HDPE welded pipe sewer main ran at depths of 8 feet below the river bed requiring the need for constant dewatering of the trench. Some other unique features of this project were its remoteness and the logistics required with its location. The environmental constraints placed on the project especially since this particular project was within the sphere of influence of the Yosemite National Park. Regardless of the many challenges from the project J. I. Garcia Construction Incorporated successfully completed all work exceeding the expectations of the National Parks Service.