Construction triple play will detour Seattle-area cars and transit

This weekend will be difficult to travel through Seattle and some of the Eastside due to construction work that will shut down the whole Highway 520 bridge and reduce southbound I-5 in Sodo to two lanes.

Then starting on Monday morning, Sound Transit will run one train every 20 minutes for the next two weeks in Rainier Valley.

From 11 p.m. on Friday until 5 a.m. on Monday, all lanes of Highway 520 from I-5 across Lake Washington will be closed.

To extend the eventual Montlake lid, Highway 520 workers will place 28 extra concrete girders over the roadway.

The eventual 24th Avenue East flyover, bike and pedestrian walkways, and roadside trees will all be located along this east edge of the lid.

The bike lane over Lake Washington will remain available, and according to Hannah Britt, a WSDOT spokesperson, "it's a wonderful weekend for a bike ride or walk while the roadway is closed."

On the southbound I-5 through Sodo, replacement of expansion joints is expected for another weekend, reducing capacity to two lanes close to the stadiums.

From Friday at 7:30 p.m. until 5 a.m. Monday, lanes will be reduced. The collector-distributor lanes, which are located to the right of the downtown mainline, will be used to direct traffic.