Drivers are being warned to expect delays on the Malahat late Thursday into Friday morning.
Traffic will be reduced to one lane and alternating traffic from 10 p.m. Thursday until 3 a.m. Friday.
Transportation Minister Rob Fleming said crews will be continuing repairs on a four-kilometre stretch of the Trans-Canada Highway between Finlayson Arm Road and Wellswood Road.
Delays of up to 20 minutes are expected.