Trenchless Technology Saves the Day--What the City of South San Francisco Did in the Shadow of a Cease and Desist Order

In 1997, the California Regional Water Quality Control Board, San Francisco Region issued a Cease and Desist Order for discharges from the Cities of South San Francisco and San Bruno Water Quality Control Plant requiring expansion of this treatment plant and the collection system upstream. Among the necessary improvements was the installation of two new sewer force mains. Due to the existing utilities, subsurface conditions, and surface activities including heavy traffic, several trenchless technologies were evaluated for portions of the force main pipelines. Pipe bursting was chosen for a portion of one pipeline due to the availability on an existing, deteriorating sanitary sewer that was scheduled for replacement because it provided minimal surface disruption. Microtunneling was chosen for portions of another pipeline because it provided a means of crossing major thoroughfares and areas heavily congested with utilities with minimal surface disruption.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos;
  • Pagination: 9p
  • Monograph Title: Pipeline Engineering and Construction: What's on the Horizon? Proceedings of the Pipelines 2004 International Conference, August 1-4, 2004, San Diego, California

Subject/Index Terms

Filing Info

  • Accession Number: 01003215
  • Record Type: Publication
  • ISBN: 0784407452
  • Files: TRIS
  • Created Date: Aug 23 2005 2:38PM