Daytime travelers who use Highways 14, 141 and 142 near White Salmon at the Skamania and Klickitat County lines, should plan for potential delays.  Starting Tuesday, Washington State Department of Transportation’s contract crews will start work to improve stormwater drainage in that area.  This work involves targeted stormwater quality retrofits using vegetated filter strips for the purpose of improving highway runoff stormwater quality.  Travelers can expect daytime single lane and shoulder closures with flaggers along both directions on Highway 14 between milepost 31.5 near Franz Road and milepost 36.2 near Hardy Creek, on Highway 141 between milepost 5.5 near Powerhouse Road and milepost 6.2 near Campbell Road, and on Highway 142 between milepost 5 near Rivervista Drive and milepost 8.  Expect delays of up to 20 minutes when flaggers are present.  The project is scheduled for completion this winter.