The Durham Street Bridge in Walkerton will be closed overnight Thursday as crews continue to complete rehabilitation work.Bruce County has issued a notice that the bridge will close to all traffic starting at 10 p.m. on June 11.It should reopen before the next morning's commute, around 4 a.m. on Friday June 12.A map of detours available during the roughly six hour closure can be found here.Once the full closure ends, the bridge will return to al…