2023 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass — Required

2022 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass–Required

2020 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass — Required

2019 Washington Code 81.53.400

2018 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass — Required

2016 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass–Required

2015 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass–Required

2014 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass — Required

2013 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass — Required

2009 Washington Code 81.53.400 – Traffic control devices during construction, repair, etc. of crossing or overpass — Required