As part of continuing improvements to Hwy 99W in Tigard, a third southbound
lane between 72nd Avenue and Highway 217 will be constructed.
According to ODOT, when there are three through lanes, the number of crashes
resulting from left-turning vehicles is exceptionally high:
At a point where there are currently three through lanes and no median, there were
nine crashes from left turning vehicles within a three-year time period (1994-1997).
At a point where there are only two through lanes and no median, there were no crashes
during the same time frame.
To ensure the safety of motorists, ODOT will require the installation of a raised center
median between 72nd Avenue and Highway 217 concurrent with the installation of a third
southbound lane.
