University of Washington (UW) Campus-Wide Gas Line Replacement

  • Location Seattle, WA
  • Client University of Washington
  • Non-Stop Gas

    Maintained constant gas service vital to lavatories laboratories.

  • No Trees Harmed

    Pipe-sleeving technique kept iconic cherry trees safe during campus gasline construction.

Preserving critical infrastructure. The University needed to replace and improve the entire natural gas distribution system on the central campus while maintaining operation to its busy main campus. The University’s gas system had never been shut down and needed to remain operational for some laboratories that required it. The existing natural gas system was investigated downstream from the University master meter, proposed pipe routing and gas meter locations were identified, and the most suitable gas line installation method for various segments of the system were determined. Three thousand feet of 4- to 6-inch gas main was installed through the open-cut method, 5,500 feet of 2- to 4-inch gas line were inserted into the existing steel gas mains, and service lines and gas meters to 30 buildings were replaced. During construction, large and rare tree species on campus were protected from construction damage.