(Kalama, WA) -- The Cowlitz County Sheriff's Office is warning drivers on I-5 southbound to ignore the bypass suggested by Google Maps and Waze to get around delays at the North Fork Lewis River Bridge. The I-5 delays are caused by construction on the bridge. The apps are sending drivers over Green Mountain Road which is steep with many turns. Trailers are getting stuck on the route. WSDOT has asked Google Maps and WAZE to change the route, but it hasn't happened. Additional deputies are staffing Exit 27/Todd Road. They're asking drivers to stay on I-5.