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March 20, 2014 at 1:47 PM

Weekend highway slowdowns in Seattle and Bellevue

Sections of Highway 99, Interstate 5, I-405, and three major Seattle streets will be partly or fully closed for road work this weekend.

  • Saturday from 4:30 a.m to 7 p.m., the Alaskan Way Viaduct on Highway 99 will close in both directions so crews can study cracks in the columns and girders. A routine March 1 inspection found new cracks were forming, and old cracks lengthening, around the Seneca Street ramp, the Washington State Department of Transportation reported. The widest crack is about 1/16th of an inch.  Later this spring, cracks will be filled with epoxy.
  • Mercer Street will be closed from Seattle Center to Dexter Avenue North from 11 p.m. Friday until 6 p.m. Saturday, while Highway 99 will be closed approaching Mercer, from 11 p.m. Friday until noon Saturday — so bridge girders can be installed on Aurora Avenue North spanning the new Mercer East corridor.  On-ramps from Mercer Street to I-5 will close from 8 a.m. to 6 p.m. Saturday and Sunday, to install electronic loops in the pavement that measure traffic volumes.
  • The northbound collector-distributor roadway of Interstate 5 will be limited to one travel lane, because of expansion- joint repairs, where drivers merge and exit between I-90 and Madison Street. The work goes from Friday at 10 p.m. to Monday at 5 a.m.  This will cause slowdowns leaving Sodo or approaching First Hill, and congestion could spill into the mainline of I-5.   Click here to see an animated map.
  • South Jackson Street in Pioneer Square will close from 7 a.m. to 7 p.m. Saturday, for paving related to the future First Hill Streetcar.  Electrical installation for the streetcar will also close the corner of Broadway and Madison Street on Saturday and Sunday from 6 a.m. to 10 p.m.
  • The right lane of southbound Interstate 405 will be closed from Highway 520 to Northeast Sixth Street, as well as the ramp from southbound I-405 to Northeast Eighth Street, from 11 p.m. Friday until 4 a.m. Monday. Crews will fix drains and barriers.

Comments | More in Traffic & Transit | Topics: construction, WSDOT


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