MDOT plans to put up the new truss on westbound I-69 just east of I-75 the night of Friday, August 2.
They will start by closing the left lane around 7 p.m. Then at about 1 a.m. Saturday morning, they will close down westbound I-69 to install the new truss. This closure should be less than 15 minutes. They will then open all the lanes except the left lane to let traffic clear. Following that they will work on removing the old truss, by closing the westbound direction again for 15 minutes.
They could be closing and opening up the freeway between 1 and 4 a.m. Saturday morning. If the weather is a problem or the work cannot be completed they will try again on Saturday night/Sunday morning, using the same procedure.