This area within the city of Tigard has experienced a significant increase in traffic volume over the past several years. In addition, it sits at the juncture of major regional routes. Heavy turning movements to and from OR 217 and S.W. Greenburg Road, and from Washington Square onto S.W. Greenburg Road creates congestion southbound onto the overpass. The overpass has only one southbound through lane. The other lanes on the overpass are already operating at capacity.
Traffic engineers say the only viable long term solution is to widen the overpass.
During construction, motorists can expect delays due to lane closures on the S.W. Greenburg Road overpass. Motorists are advised to use alternate routes and avoid traveling on S.W. Greenburg Road while the project is underway, if at all possible. Some night work is anticipated, which would involve lane closures on OR 217. In addition, the contractor, Concrete Enterprises of Keiser Ore., will re-align both the northbound and southbound travel lanes of OR 217 to create a work area in the middle of the highway at the S.W. Greenburg Road overpass. These closures will allow the contractor to move equipment into place to start building the support structure for the widened portion of the overpass.