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County engineer details multi-year slope-stabilization work on major roadway failure
Summary
Jackson County’s engineer and public-works staff presented the cause, investigation and a county-led repair of a large slope failure affecting a switchback section of a county road, describing soil borings, mass-wave studies, soil nails, shotcrete walls, micropiles and wick drains used to stabilize the slope.
County engineers and public-works staff presented a detailed briefing on a major slope failure and the county-led stabilization work completed on the site, summarizing geotechnical investigation, design elements and construction progress.
County Engineer Jonathan (last name not provided) walked commissioners through photographic evidence of a multi-year failure and described subsurface investigations, including borings and mass-wave (MASW) geophysical testing. He said the MASW and borehole data showed soil stratification and anomalies that required subsurface stabilization, and that…
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