The traffic signals at Biddle and McAndrews roads will be shut down overnight tonight, Thursday and Monday as crews work at the intersection.
The signals will be off from 7 p.m. to 7 a.m. each night.
Knife River Materials and Pacific Electrical will work on the right of way during the shutdown, city officials said.
Traffic will be reduced to one lane approaching the intersection from each direction. Flaggers will direct traffic.
Motorists should expect delays and are advised to seek alternate routes.
For more information, contact Medford Public Works at 541-774-2100.