The Highway 99 southbound slow lane through the George Massey Tunnel will be closed Monday and Tuesday night.
The closures from 10 p.m. to 5 a.m. each night are to allow BC Hydro crews to repair the company's equipment within the tunnel.
Drivers are asked to obey signs and the direction of traffic-control personnel, and to use caution near roadside workers.
A Transportation Ministry press release notes this is a continuation of the work to address the temporary repair completed on March 20, which required an immediate slow-lane closure.
"There is no public safety issue," the release notes.
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