' Owner: Michigan Department of Transportation, Lansing, MI ' General Contractor Davis Construction, Lansing, MI ' Technique(s) Utilized: Micropiles, Vibro-Compaction PROJECT CASE STUDY icholson installed a total of 433 micropiles for new bridge foundations. Due to the voids in the shale and gypsum bedrock formation, 252 of the micropiles were installed using low-mobility grout to protect the structure from future settlement. One of

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