Eastbound I-96’s local lanes at the M-39 (Southfield Freeway) interchange in Detroit are shut down while crews tackle a deep sinkhole hiding under the pavement. With the local lanes out of play, traffic is getting squeezed onto the express lanes and nearby surface streets, and congestion around the interchange is running hotter than usual. Officials say the repair calls for serious excavation work and will keep commutes disrupted for weeks.
Closures and timeline
Multiple ramps and the eastbound local lanes at the M-39 interchange remain closed, and the reopening timeline has now been pushed into the summer, as reported by the Detroit Free Press. That reporting, based on Michigan Department of Transportation (MDOT) updates, says crews are staging heavy equipment, sequencing repairs, and reopening segments only as each section is stabilized. Hoodline first flagged these emergency closures back in February, and you can revisit that early coverage of the shutdowns at our initial sinkhole alert.
What crews are digging for
According to MDOT, a failed drainage or sewer line beneath the local lanes created a void that grew into an approximately 40-by-40-by-50-foot collapse, which led parts of the roadway to sink. CBS Detroit reported that crews have had to dig roughly 50 feet down in spots to reach the damaged main and clear out debris before they can even start pipe repairs. Workers are putting in steel sheeting and other shoring systems to stabilize the underground cavity, then will replace the line and rebuild the road on top of it.
Ramps, lane closures and detours
The work has shut the northbound and southbound M-39 ramps to eastbound I-96 local lanes, the eastbound I-96 local at M-39, and the express-to-local ramp at the interchange, according to ClickOnDetroit. Drivers are being funneled to the express lanes, encouraged to exit earlier at Davison (M-8), or told to use surface options such as Greenfield Road to get to eastbound I-96. Expect backups during the rush, since crews and heavy machinery are still occupying key parts of the interchange.
Why this matters for Detroit drivers
The M-39/I-96 interchange is one of metro Detroit’s busiest choke points, and work at a single ramp can send shockwaves through the whole freeway system. The sinkhole repair is landing at the same time as broader worries about aging bridges and long-delayed fixes around the region. That backlog can make emergency repairs like this more painful for drivers, according to WXYZ, which has covered MDOT’s warnings that continued underfunding could put more infrastructure at risk of sudden closure.
MDOT says public safety is the top priority while crews shore up the failed line and rebuild the roadway, and officials plan to post reopening notices as individual lanes and ramps are cleared. This story will be updated as agencies announce new reopenings and timelines.
