Lane Closures, Traffic Impacts on I-5 in Washington Thru September

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Washington I-5 Traffic | Washington I-5 Construction | I-5 Exit Guide

The Washington State Department of Transportation reports the following traffic impacts on Interstate 5 in King County thru September, 2016.

Express Lanes Schedule Changes
I-5 Region: Northwest County: King Location: Milepost(s) 165.29 – 172.43

WSDOT uses the I-5 express lanes to assist the flow of traffic during busy travel times. These lanes are scheduled to move in the direction that will relieve the most congestion from the transportation system.

Work schedule:

  • Saturday, Sept. 17 – The I-5 express lanes will remain closed until 10:30 a.m. for Ship Canal Bridge cleaning work. The lanes will open southbound by 11 a.m.
  • Sunday, Sept. 18 – The I-5 express lanes will remain closed until 11 a.m. for Ship Canal Bridge cleaning work. The lanes will open southbound by 11:30 a.m.

I-5 Region: Northwest County: King Location: Milepost(s) 142.76 – 156.71

WSDOT contractor crews are rehabilitating southbound I-5 between the Duwamish River Bridge in Tukwila and South 320th Street in Federal Way.

Work schedule:

  • Thursday, Sept. 8 – Up to four lanes of southbound I-5 from South 272nd Street to South 320th Street will be closed nightly beginning with one lane at 8 p.m. All lanes will reopen by noon. This work is weather dependent.
  • Thru Friday, Sept. 9 – Up to two lanes of southbound I-5 from South 188th Street/Orilla Road South to SR 516/Kent Des Moines Road will be closed nightly beginning with one lane at 8 p.m. All lanes will reopen by noon. This work is weather dependent.
  • Wednesday, Sept. 7, to the morning of Sunday, Sept. 11 – Up to four lanes of southbound I-5 from I-405 to SR 516/Kent Des Moines Road will be closed nightly beginning with one lane at 8 p.m. All lanes will reopen by noon. This work is weather dependent.
  • **HIGH IMPACT** Wednesday, Sept. 7, to the morning of Friday, Sept. 9 – The southbound I-405 ramp to southbound I-5 will be closed from 9 p.m. to 5 a.m. nightly. A signed detour will be in place. This work is weather dependent.
  • Wednesday, Sept. 7, to the morning of Friday, Sept. 9 – The 188th Street on-ramp to southbound I-5 will be closed from 9 p.m. to 5 a.m. nightly. A signed detour will be in place. This work is weather dependent.
  • Wednesday, Sept. 7, to the morning of Friday, Sept. 9 – The southbound I-5 off- and on-ramps at South 200th Street/Military Road South will be closed from 9 p.m. to 5 a.m. nightly. A signed detour will be in place. This work is weather dependent.

Surveying Maintenance
I-5 Region: Northwest County: King Location: Milepost(s) 147.97 – 153.81
WSDOT maintenance crews are surveying monuments of northbound I-5 between Kent and Tukwila.

Work schedule:

  • Wednesday, Sept. 7, to the morning of Thursday, Sept. 8 – Up to four left lanes of northbound I-5 from South 259th Place in Kent to South 216th Street in Des Moines will be closed beginning with one lane at 9:30 p.m. All lanes will reopen by 4:30 a.m.
  • Monday, Sept. 12, to the morning of Tuesday, Sept. 13 – Up to four left lanes of northbound I-5 from South 216th Street in Des Moines to South 188th Street/Orillia Road in SeaTac will be closed beginning with one lane at 9:30 p.m. All lanes will reopen by 4:30 a.m.
  • Monday, Sept. 19, to the morning of Tuesday, Sept. 20 – Up to four left lanes of northbound I-5 from South 188th Street/Orillia Road to Klickitat Drive will be closed beginning with one lane at 9:30 p.m. All lanes will reopen by 4:30 a.m.
  • Tuesday, Sept. 27, to the morning of Wednesday, Sept. 28 – Up to four left lanes of northbound I-5 from Klickitat Drive to Interurban Avenue South will be closed beginning with one lane at 9:30 p.m. All lanes will reopen by 4:30 a.m.

Seattle Pavement Repair Work
I-5 Region: Northwest County: King Location: Milepost(s) 162.97 – 169.39
WSDOT maintenance crews are repairing the pavement of three ramps on I-5 between South Spokane Street/6th Avenue South and Northeast 45th Street in Seattle.

Work schedule:

  • Monday, Sept. 12, to the morning of Tuesday, Sept. 13 – The South Spokane Street/6th Avenue South on-ramp to northbound I-5 will be closed from 11 p.m. to 5 a.m. A signed detour will be in place. This work is weather dependent.
  • Wednesday, Sept. 14, to the morning of Thursday, Sept. 15 – The Northeast 45th Street on-ramp to southbound I-5 will be closed from 10 p.m. to 5 a.m. A signed detour will be in place. This work is weather dependent.
  • Thursday, Sept. 15, to the morning of Friday, Sept. 16 – The northbound I-5 off-ramp to Mercer Street will be closed from 10 p.m. to 5 a.m. A signed detour will be in place. This work is weather dependent.

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