Officials say you can expect some delays on I-5 this week.
Starting Sunday night,from 10 PM to 5 AM, contractors started paving the southbound lanes of I-5.
Construction will continue all week, taking place between the north end of the Medford viaduct and exit 30.
Traffic will be detoured through downtown Medford between exits 30 and 27.
Drivers are being cautioned to expect delays.