Parts of Interstate 5 between exits 30 and 35 north of Medford are closed this week as part of a project to rebuild the Upton Road bridge over the freeway.

Northbound traffic is being detoured to Highway 99, between exits 30 and 35, from 10 tonight to 6 a.m. Wednesday. Regular interstate traffic will resume in the daytime.

The work is part of a $16 million Oregon Department of Transportation bridge project. The work includes replacing the Upton Road bridge over I-5, the Upton Road bridge over Bear Creek and the I-5 bridge over Foley Lane, said Gary Leaming, ODOT project information coordinator. The project is scheduled to finish in November 2008.

Upton Road, the "back way" into the Jackson County Expo Park, is closed for seven months as part of the project. A detour funnels vehicles onto Peninger Road, East Pine Street and North Tenth Street. ODOT will detour westbound traffic on Upton Road south on Peninger to Pine Street. Eastbound traffic that would normally cross I-5 on Upton will be detoured south on Tenth Street to Pine Street.

There will also be possible night-time lane closures on Foley Lane Road in preparation of demolition of the east side of the bridge. The undercrossing is scheduled for a one-day closure 8 a.m. to 4 p.m. Wednesday. Local traffic on Foley Lane will have to use Old Stage Road Wednesday and Thursday, said Leaming.