Dewind One Pass was involved in constructing a cut-off wall to address seepage issues at Tyler Dam in Tyler, Texas. The earthen dam was constructed of clay, but the foundation soil consisted of a very permeable silty sand material. The remediation involved a mixed-in-place soil, cement, and bentonite cutoff wall on the downstream face of the dam, about halfway between the crest and the toe. Dewind won the job, and the City’s consulting geotechnical engineer narrates this video explaining everything about the project and gives them very glowing reviews. It is well worth your time to watch! [Source: Dewind YouTube Channel. Image: YouTube]
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Possible Seepage at Newly Constructed New Orleans Levee
February 23, 2009
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Wet spots have been detected along a portion of a new levee being constructed by a US Army Corps of Engineers Contractor. The levee is approximately 95% complete, but the Levee Board wants to establish what is causing the apparent seepage before accepting the levee. More after the break. (Photo of Katrina levee failure from greenmannowar)