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  • Project

    County Road G76 over I-35

  • 👥


    Iowa Department of Transportation

  • 🌎


    Warren County, Iowa


Schemmer has been hired to provide final bridge design, final roadway design and limited construction phase services for a replacement structure and diamond interchange design at County Road G76 and Interstate 35 in Warren County. Due to the new horizontal and vertical alignment required on CR G76, the entire existing interchange required redesign and reconstruction, including four ramps and about ½ mile of CR G76. Due to limited detour route alternatives, the project was constructed under traffic. This required detailed construction phasing schemes to accommodate the roadway profile grade raise and yet maintain traffic through the existing interchange. A thorough review of access control was also conducted due to nearby drives to adjacent businesses.

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