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Feather River Reaches 14-16

Yuba City, California

The Feather River West Levee Reaches 14-16 Project, located in Yuba City, California, was an emergency contract to repair three miles of a levee system that displayed concerning seepage deficiencies during the large Oroville Dam releases in early 2017. This three mile stretch of levee protects the most rural areas of Yuba City and a levee breach during the high waters would have been catastrophic. Primary features of this project included:

  • 350,000 cy of earthwork
  • 1 million sf of soil-bentonite cutoff wall with depths up to 82 ft working three different headings, 24 hours per day
  • 50,000 sf of slag-cement-bentonite cutoff wall with depths of 81 ft around two high pressure PG&E gas mains
  • Emergency bypass and replacement of four storm drain utility pipes ranging from 16 inches to 36 inches in diameter
  • 18,500 tons of aggregate base
  • 4,700 tons of asphalt paving
  • 93 acres of hydroseeding

Remaining scopes of work being completed include final storm drain pipe installation as well as asphalt paving.