County Road G66 Bridge Bank Stabilization


County Road G66 Bridge Bank Stabilization


Pottawattamie County


Macedonia, Iowa

Project Details

Schemmer provided geotechnical engineering and testing services for the Graybill Creek Channel Study. Review of the site surface configurations, soil and bedrock conditions determined that a long-term slope repair was possible without changing the creek configuration. The repair consisted of replacing the broken soil with crushed limestone from below the channel and to the east creek bank. The crushed soil placement progressed to the west to provide firm support of the unbroken slope and prevent future ground movement. The new and improved slope was covered with soil and seeded. The roadway embankment was restored, and the bridge and roadway reopened to traffic.