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South King County transportation news

Summer construction season winds dow

  • All westbound lanes of the SR 520 bridge will be closed between 92nd Avenue Northeast and Montlake Boulevard from 11 p.m. Friday, Sept. 6 to 5 p.m.

    Saturday, Sept. 7 while crews pour concrete for columns on the new West Connection Bridge.

  • Next weekend, all lanes of SR 520 will close between I-405 and Montlake Boulevard from 11 p.m. Friday, Sept. 13 to 9 a.m. Sunday, Sept. 15. During that time, crews will continue to pour concrete columns for the West Connection Bridge and others in Medina will shift lanes for the Eastside Transit and HOV Project. The left two northbound lanes of I-5 between Olive Way and Lakeview Boulevard in Seattle will be closed from 9 p.m. Friday, Sept. 13 until 5 a.m. Monday, Sept. 16 while contractor crews replace worn and aging bridge expansion joints. During these closures, expect heavier traffic on I-90 and additional delays on I-5.

Better traffic flow coming to I-405 in Renton

Some changes are in store for folks who use the Sunset Way on-ramp to southbound I-405. Beginning Monday, Sept. 16, the ramp meter will start evenly pacing vehicles entering the highway, which will help provide better mainline traffic flow, and improved travel times. Ramp meters use a stop light to break up the flow of merging vehicles to match real-time roadway conditions. As a result, merge-related collisions in the area drop by at least 30 percent.

 

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