Exit 45 on the Maine Turnpike in South Portland will close this weekend for road work.
The Maine Turnpike Authority says the closure will allow crews to demolish and remove the old barrier toll booths just east of the new interchange.
All Exit 45 on-ramps and off-ramps will close to traffic beginning Friday at 9 a.m.
The ramps are expected to reopen Monday by 6 a.m.
The MTA says turnpike travelers should plan on using any of the nearby interchanges during the closure.