Lake Waconda Levee: Remediation Using the One-Pass Trench Method for a Seepage Barrier

Charles Krolikowski, Francke Walberg, Kimberly Heenan, Timothy Stark

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In March 2019, floodwaters on the Missouri River reached within 12 in. (0.3 m) of the top of the levee and led to underseepage distress to the Lake Waconda Levee resulting in internal erosion of the foundation soils, as evidenced by sand boils and seepage areas at the landside levee toe. A 1, 900-ft (579.5 m) riverside seepage barrier was designed and constructed using the one-pass trench mixing method to remediate underseepage distress where the thin clay blanket included clean and silty sand strata interbedded with the fine-grained material. The one-pass method has not been previously used on federal levees, so a robust quality control (QC) and quality assurance (QA) testing program was specified, including supplemental subsurface explorations along the alignment, a full-scale test section, laboratory testing, and confirmatory coring. The design and results of the wall construction are presented.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
EditorsDiane M. Moug
PublisherAmerican Society of Civil Engineers
Pages471-484
Number of pages14
EditionGSP 355
ISBN (Electronic)9780784485408, 9780784485415
DOIs
StatePublished - 2024
Event2024 International Foundations Congress and Equipment Expo: Earth Retaining Systems, Ground Improvement, and Seepage Control, IFCEE 2024 - Dallas, United States
Duration: May 7 2024May 10 2024

Publication series

NameGeotechnical Special Publication
NumberGSP 355
Volume2024-May
ISSN (Print)0895-0563

Conference

Conference2024 International Foundations Congress and Equipment Expo: Earth Retaining Systems, Ground Improvement, and Seepage Control, IFCEE 2024
Country/TerritoryUnited States
CityDallas
Period5/7/245/10/24

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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