Several lane and ramp closures begin at 5 a.m. Saturday, April 5, on I-75 in northern Oakland County, and some will remain in effect until early November.

These closings are in effect from 5 a.m. Saturday to 5 a.m. Monday, April 7:

• Southbound I-75 ramp closed to and from M-15/Ortonville Road/Main Street

• Southbound I-75 ramp to Grange Hall Road closed

• One lane open on southbound I-75 from Holly Road to Belford Road

• One lane open on southbound I-75 from US-24/Dixie Highway to Clarkston Road

These closings are in effect from 5 a.m. Saturday to early November:

• Two lanes open on southbound I-75 from Holly Road to M-15/Ortonville Road/Main Street

• Southbound I-75 ramps closed to and from northbound and southbound US-24/Dixie Highway

• Eastbound and westbound Grange Hall Road ramp closed to southbound I-75

• Southbound I-75 ramps closed to and from Holly Road.

The closings will allow crews to install temporary markings and a barrier wall placement for a traffic shift, according to a release from the Michigan Department of Transportation.

The closings are weather dependent and may be postponed.

These closings are in addition to ongoing closings as part of the multi-year reconstruction of I-75 in north Oakland County. Check Michigan.gov for updated information.

The work is part of a $160 million project to resurface and repair the expressway from M-15 to the Oakland/Genesee county line.

The project includes resurfacing I-75, repairing 11 bridges, drainage improvements, culvert replacements and new signs and guardrails.

This year, southbound I-75 will be milled and resurfaced from M-15 to the county line, with two lanes of northbound and southbound traffic sharing the northbound side of the freeway.

Bridge repairs will be performed throughout the project limits along southbound I-75. Work is expected to be completed for the year in late fall.

In 2026, crews will remove the temporary crossovers and perform remaining miscellaneous tasks.