OR99E: Dunes Drive – 10th St.
Location: Oregon City, Oregon
DEA was employed by the Oregon Department of Transportation (ODOT) to provide full design and construction engineering services, including full contract management, administration, inspection, and QCCS quality management. The multiple project stakeholders were the Federal Highway Administration (FHWA), ODOT, and the City of Oregon City. The project included removal and reconstruction of the existing roadway, a 450-foot promenade that cantilevers over the Willamette River, roadway realignment and reconstruction, paving, signing, illumination, and signalization; bicycle and pedestrian access and path safety improvements; and a river overlook and event area on a steel supported, cantilevered wood plank deck that incorporates landscape, architecture, and public art.
Although lane closures on this section of roadway were very limited due to high traffic volumes (30,000 Average Daily Traffic), the contractor was still able to accomplish pavement reconstruction, modifications to the alignment of an interstate on-ramp, and a new street connection to the highway. Paving this three-quarter-mile stretch used about 10,000 tons of asphalt. New signals were installed and improvements to existing signals were made at numerous intersections, and new signing and pavement markings were incorporated as well.