I-75 lanes from 13 Mile to Coolidge to reopen

By: Terry Oparka | Troy Times | Published December 23, 2019


Motorists are expected to be able to use the three newly constructed northbound lanes of Interstate 75 from 13 Mile Road to Coolidge Highway — with the exception of only two lanes open for a one-mile stretch from Big Beaver to Wattles roads for construction of a soundwall — by 7  p.m. New Year’s Eve, weather permitting. 

Michigan Department of Transportation officials said in a prepared statement that northbound exit ramps are expected to open as work progresses.

The openings were pushed back a month, due to heavy rain events over the summer, MDOT officials said. 

According to the press release, southbound I-75 will be reduced to one lane starting at 7 a.m. Dec. 27 to continue the process to have all southbound lanes and ramps open by the end of the calendar year. Crews need to remove roughly 9 miles of temporary concrete barrier wall from the southbound lanes and restripe the freeway before fully opening travel lanes and ramps. 

For crews to safely complete that work, southbound I-75 will have one lane open until 7 p.m. Dec. 31. At that time, all exit and entrance ramps on both sides of the freeway will open to traffic.

Currently, both directions of I-75 traffic, separated by a temporary concrete barrier, are maintained on the southbound side of the freeway to allow for the northbound lanes and bridges to be reconstructed this year. 

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 are scheduled to 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. 

Prep work on the third and final phase — from 13 Mile Road to Eight Mile Road, started this fall. The anticipated completion is fall 2023.

For updates on the construction project, visit modernize75.com.