(Beaverton, OR) -- The Highway 217 Auxiliary Lane Project will cause long delays on the southbound lanes starting Friday night. Construction crews will be building a new section of auxiliary lane between Allen Boulevard and Hall Boulevard and the freeway will be reduced to one lane. The Denny road on-ramp will also be closed. The lane closure begins at 9 o'clock Friday evening and will end by 5 o'clock Monday morning.