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Richland Y roundabout in use after construction.Photo courtesy of Bob Brawdy, Tri-City Herald.Aerial photo of roundabout.May 2007 - Pouring of concrete pavement is complete.April 2007 - Paving the asphalt base.March 2007 - Preparing the subgrade.September 2006 - The new roadway alignment for SR 240 between the Columbia Center Boulevard Interchange and the Richland Y Interchange.September 2005 - Construction is underway at Richland Y Interchange
Proposed roundabout at Richland Y