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About the I-75 Modernization Project:
MDOT reconstructed nearly 18 miles of I-75 between M-102 (Eight Mile Road) and South Boulevard in Oakland County. MDOT rebuilt the freeway for the first time since it was originally constructed. The construction was performed in three phases. Segment 1 construction was north of Coolidge Highway to north of South Boulevard; Segment 2 construction was from north of 13 Mile to north of Coolidge Highway; and Segment 3 construction was from north of M-102 (8 Mile Road) to north of 13 Mile Road.
Along with reconstructing the travel lanes, MDOT replaced bridges and added an additional lane in each direction that serves as a High-Occupancy Vehicle (HOV) lane during the morning and afternoon peak hours, Monday through Friday. HOV lanes require two or more human occupants in a vehicle using the lane. At all other times, it serves as a general-use lane. To support the use of the HOV lane, new carpool lots were added at 12 Mile Road and the existing carpool lot at Adams Road was enhanced.
Safety upgrades included modernizing interchanges and geometric improvements, such as separating movements at the I-696/I-75 northbound interchange from the I-75 northbound exit to 11 Mile Road and reconfiguring interchanges at 12 Mile, 14 Mile, and Big Beaver Roads into Diverging Diamond Interchanges (DDI).
Community developed aesthetic improvements were included throughout the project.