The Seattle Department of Transportation will grind the concrete surface on streets to improve traction for safety at multiple locations around the city through May 29. Work will take place during weekdays between 7 a.m. and 5 p.m., with the exception of some weekend work, which will take place from 9 a.m. to 10 p.m.

On Tuesday, May 27, and Wednesday, May 28, work will be done on West Dravus Street between Whalley Place West and 25th Avenue West.

Eastbound traffic will detour to 28th Avenue West, West Blaine Street, Thorndyke Avenue West and 20th Avenue West.

Westbound traffic will detour via 20th Avenue West, Thorndyke Avenue West, West Blaine Street and 28th Avenue West.

Flaggers will be on site at road closures to provide local access and guidance. The locations were selected based on traction vulnerability due to heavy rain, snow or ice.

[UPDATE, 5/22/14: The work is now on hold until further notice. SDOT crews found their equipment could not do the job on the steepest slopes, including West Dravus Street. They will look into other equipment and methods to see if there is another way.]