Commuters, mark your calendars for some major disruptions on Interstate 405. From Sept. 20 through Sept. 23, travelers will need to navigate around two full directional closures – one along northbound I-405 in Bothell and another on southbound I-405 in Renton. These closures are necessary for contractors to make significant improvements to the I-405 corridor, as reported by the Washington State Department of Transportation (WSDOT).