Grand Haven Department of Public Safety issued the following announcement on Feb 25.
MDOT - Bridge work in Grand Haven resumes Tuesday, March 1, 2022
Next week, southbound US-31 will be reduced to one lane and crossed over to the northbound side between 3rd Street and Jackson Street. Northbound US-31 will have two lanes open from Jackson Street to M-104, and one lane open from M-104 to 3rd Street. Alternate route for southbound US-31: I-96 to M-231 to M-45 to US-31.
-The ramp from southbound US-31 to eastbound M-104 will be closed. Detour- 3rd Street to M-104.
-The ramp from westbound M-104 to southbound US-31 will be closed. Detour- Northbound US-31 to Van Wagoner Street to southbound US-31.
-Westbound M-104 will be reduced to one lane over the Spring Lake Channel and all traffic will be redirected to Pine Street.
The work is weather dependent.
Original source can be found here.