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Ramp reconstruction will close southbound I-75 exits to Big Beaver and Rochester roads

By: Terry Oparka | Troy Times | Published May 8, 2020


Crews will close the temporary southbound Interstate 75 exits to Big Beaver and Rochester roads starting at 5 a.m. May 9 to reconstruct the ramps. 

The Big Beaver Road ramp is expected to remain closed until mid-June. Existing southbound freeway pavement will be removed and recrushed for use in the sub-base for the new Rochester Road ramp, expected to remain closed until mid-August. 

The suggested detour is 14 Mile Road. Southbound I-75 exits at Square Lake, Adams and 14 Mile roads will remain open. 

Currently, both directions of I-75 traffic, separated by a temporary concrete barrier, are maintained on the newly constructed northbound side of the freeway. This will allow for the southbound lanes and bridges to be reconstructed this year. This configuration is expected to remain in place until late November. 

When completed, the $224 million project, the second phase of the I-75 modernization project, will reconstruct 8 miles of pavement and 18 structures, upgrade drainage and improve aesthetics. It will feature federally approved noise walls and a high-occupancy vehicle lane between Coolidge Highway and 13 Mile Road. 

Final pavement markings for the 8-mile segment through Troy will be finished in 2021.

The $127 million first phase of the project, the addition of one lane to northbound and southbound I-75, covered 3 miles of the freeway, between South Boulevard and Coolidge Highway through Bloomfield Township, Auburn Hills and Troy. That began in August 2016. The project’s first phase of construction also replaced five bridges, reconfigured the interchange at Square Lake Road and made improvements to the Adams Road carpool lot. 

That work was completed in 2017.

Federal funding covers about 80% of the costs. 

That stretch of freeway carries up to 174,000 vehicles per day. 

The anticipated completion for Segment 3, Eight Mile Road to 13 Mile Road,  is fall 2023. This phase will cost $630 million, bringing the overall project cost to $945 million.

For updates on the construction project, visit