PMI provided engineering and environmental services for a subdivision bridge crossing along Isom Creek in Little Rock, AR. Using HEC-RAS hydraulic modeling software, multiple crossing types and alignments were analyzed to determine the most cost-effective solution that would meet FEMA no-rise requirements. In addition, USACE permitting was required due to the channelization of the stream at the bridge crossing. PMI obtained FEMA CLOMR and LOMR permits and a USACE Section 404 Nationwide permit for this project.
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