The project involved the removal of the pier structures associated with the former Winter Road bridge as mitigation for the construction of the Orange Road and SR 315 roundabout project. L&A, under direct contract with the Delaware County Engineers Office, performed all ecological studies required to prepare the required waterway permits, including wetland delineation, stream assessment and threatened/endangered species surveys, a mussel reconnaissance survey and coordination with ODNR and USFWS. L&A reviewed plan sheets and determined the project scope and associated impacts to ecological resources met the requirements for Nationwide Permit (NWP) 18 – Minor Discharges. Because the Olentangy River is designated as a State Scenic River, an OEPA Section 401 Water Quality Certification was also required. By demonstrating impacts to water quality would be minimal under the pier removal processes to be employed, L&A was able to obtain an OEPA NWP D.5 Directors Authorization waiving this WQC requirement on behalf of the County. USACE authorized the NWP without comment.