The Dulzura Conduit provided drinking water to San Diego for 80 years until its deterioration made it structurally unsound, thus leading to its challenging rehabilitation. The 17.7 km (11 mi) concrete pipeline was supported by redwood flumes along a rugged, granite hillside. Following consultation, plans to renovate and upgrade the pipeline called for steel pipe on concrete and steel supports. Helicopters were required for demolition, concrete placement, structural steel erection, and pipe laying. Construction took place in nine separate locations at a cost of $4 million. This article describes the design challenges, the construction of the new conduit with helicopters, and the end results.


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  • Accession Number: 00721952
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 30 1996 12:00AM