CONSTRUCTION: Weekend lane closures returning to SR 509 this weekend


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Weekend work to repair and replace guardrail in the median on State Route 509 in Burien resumes this weekend, Sept. 15-18, with left lane closures in both directions.

Contractor crews working for the Washington State Department of Transportation will reduce SR 509 to one lane in each direction between South 128th and South 112th streets from 7 p.m. Friday, Sept 15 to 6 a.m. Monday, Sept. 18.

Here’s more from WSDOT:

Why is WSDOT repaving northbound SR 509?
Also known as the Burien Freeway, the northbound lanes were last paved in 2003 and the pavement is now cracked and rutted from the nearly 28,000 vehicles that use SR 509 between South 168th Street and South 112th Street in Burien each day. Contractor crews are grinding down the top layer of pavement and repaving it with asphalt, creating a smoother and safer surface.

Along with repaving northbound SR 509, crews are replacing four pedestrian curb ramps at the corner of South 128th Street to make it easier for everyone to cross the street.

Why is WSDOT replacing guardrail with concrete barrier?
Two sections of guardrail along the median will be replaced with concrete barrier in order to improve safety and cut back on the time lanes are closed when crews repair damaged guardrail. Maintenance crews can quickly push the concrete barrier into place after a collision, instead of requiring lengthy lane closures to repair guardrail and posts.

The End Result
Drivers will have smoother pavement and maintenance crews will be able to reposition the new concrete barrier quickly after a collision.

Project Benefits

  • Safety – Repaving this section of SR 509 will eliminate cracks, ruts and potholes where water can pool and reduce traction.
  • Economic – Replacing the guardrail with concrete barrier saves maintenance crews time and taxpayer money. Crews can push barrier back in place, but repairing guardrail requires more time and longer lane closures.

What is the project timeline?

  • February 2017: Project advertised for competitive bidding.
  • April 2017: Project awarded.
  • June 2017: Construction begins.
  • Fall 2017: Project is scheduled to be complete.

Plan for travel delays during construction:

  • Expect weekend travel delays between Burien and Seattle.
  • Carpool, take transit and plan to travel early or late in the day to avoid the added congestion.
  • For more information on scheduled lane reductions and detours, visit the King County construction page.
  • Check the Seattle traffic website for travel times and alerts.

WSDOT contractor Tucci & Sons, Inc. expects work on the $4.6 million project to wrap up sometime this fall.

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