The project will repair and replace damaged concrete and grind rutted travel lanes.
The first phase will wrap up in October, with the entire project finishing up in three years.
Crews will work on milepost 9 to 11.4 SB during the first phase.
ODOT said drivers should expect slow moving traffic and possibly back-ups, especially southbound on the Siskiyou Summit.
The work zone speed limit will be posted at 40 MPH and enforced by Oregon State Police.
The SB on-ramp at exit 11 will be closed during the first phase.
Exit 6 bridge decks will be replaced during the second and third phase of the project.
The entire project will cost around $26 million.
NBC5 News at Sunrise co-anchor Allison Ross graduated from the University of Missouri-Columbia with a degree in broadcast journalism.
Before coming to NBC5 News, she was a reporter and anchor at KOMU in Columbia, MO and interned at FOX 25 News in Boston. Allison also spent six months reporting in Europe where she covered the European Commission.
When she’s not in the newsroom, Allison loves adventures. She enjoys traveling and is excited to explore the West Coast. Allison’s motto: “Try everything once!”