Vehicles headed towards Dalhousie down Red Road were diverted through JK Island, near Fort William’s main entrance, along Dufferin Road and Mayo Road on Saturday for underground canal repair.
PWD engineers said among the several outlet canals, one that runs under Red Road needed immediate clean-up so that rain water can move out faster after a heavy downpour.
The diversion will continue for a week before work on the other flank of Red Road begins, police said.