Gateway Constructors will be closing the Hampton Avenue at Wells Drive intersection in Forest Park for reconstruction starting March 2.
It will remain closed for up to 2 months and will reopen when the Hampton bridge reopens May 22.
Vehicles will no longer be permitted at that intersection as crews complete the bike path tunnel and construct the new roundabout.
Vehicles coming eastbound on Wells in the park will be detoured across the Tamm Avenue bridge to Oakland Avenue. Westbound vehicles from the Medical Center will not be able to proceed west of the roundabout near the Jewel Box. Bicyclists will be detoured through the work zone until the new tunnel is complete.