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Drilling and Levee Investigations: General Info

The first step in the investigation is to conduct an above ground survey of the levee system, and identify all structures and vegetation on the levees. The next step is to explore the conditions of the levees beneath the surface.  To do this, Levee Ready Columbia drills boreholes and removes soil samples from the levees and on nearby land.

In 2014, Levee Ready Columbia’s geotechnical engineering consultants took soil samples at 135 boring locations in the PEN 1 and PEN 2 districts.  At nearly alDrill-Rigl of these locations, a drilling contractor drilled holes less than 8 inches in diameter, from 20 to 100 feet deep.

Now Levee Ready Columbia is investigating MCDD and SDIC, completing an additional 251 borings.

This project was funded in part with a financial award from the Special Public Works Fund and Regional Solutions, funded by the Oregon State Lottery and administered by the Oregon Infrastructure Finance Authority.

Recent News:

March 30, 2017

  • We have successfully completed levee evaluations on Marine Drive as of Tuesday, March 28! Levee Ready appreciates the public’s patience.
  • We are continuing with evaluations by completing borings from the water by barge. As of March 29, 2017, we are:
    • 87% complete (all borings 219/251)
      • 74% complete in MCDD (165/197)
      • 100% complete (44/44) for locations on Marine Drive.
      • 100% complete in SDIC (54/54)
      • 22 locations done from the water have just begun.

For more information you can read a brief overview of the project or visit our Project Library page to find detailed drilling work plans. All of the drilling is being conducted according to U.S. Army Corps of Engineers specifications  to ensure that the work does not result in damage to the levee or increased risk of flooding.

Maps of Drilling Locations by Completion

Disclaimer: All locations are approximate.
Click the images in the gallery to enlarge them. Zoom in for details.

Recent pictures from the field