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Geotechnical & Geologic Engineering

U.S. 89 Landslide

US 89 Landslide 1
US 89 Landslide 2
US 89 Landslide 3
US 89 Landslide 4
US 89 Landslide 5

U.S. 89 Landslide

Kleinfelder was selected by the Arizona Department of Transportation (ADOT) to perform a geologic assessment of a large landslide that occurred in February 2013, along Highway US 89 near the GrandCanyon-Glen Canyon region in northern Arizona. The work was funded through an existing ADOT On-Call Subsurface Investigations contract that Kleinfelder was awarded in 2011.


Mitigating Hazards

ADOT has retained Kleinfelder to proceed with the final design for the planned mitigation, which includes an approximate 60-foot eastward shift of the existing US 89 alignment. Our design leverages approximately 1 million cubic yards of excavated landslide debris to supply the materials needed for the buttress, while eliminating the existing rockfall hazard.

  • Project Overview

Project Details

Location:
Page/Bitter Springs, Arizona

Owner:
Arizona Department of Transportation (ADOT)

Geotechnical & Geologic Engineering

  • Earthquake & Seismic Design
  • Engineering Geology
  • Foundation Design
  • Geotechnical Engineering
  • Retaining Walls
  • Rock Engineering
  • Trenchless Technology
  • Tunnel Engineering
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