SR 503 Drainage Improvements - Project map

In summer 2018, contractor crews working for the Washington State Department of Transportation will remove and replace the drainage system under State Route 503, between mileposts 1.20 and 1.60, in Clark County.
In summer 2018, contractor crews working for the Washington State Department of Transportation will remove and replace the drainage system under State Route 503, between mileposts 1.20 and 1.60, in Clark County.