I-5 and I-405 Work Continues in Pullman

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  I-405 will have nightly closures from 8:30 p.m. to 5 a.m.“405: Monday, August 10 to the morning of Friday, August 14: Two Express Toll Lanes (ETL’s) of northbound I-405 between milepost 17.45 and milepost 18.12 will be closed, nightly from 8:30 p.m. - 5 a.m.”
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  The closures on I-405 will occur on Monday, August 10“405: Monday, August 10 to the morning of Friday, August 14: Two Express Toll Lanes (ETL’s) of northbound I-405 between milepost 17.45 and milepost 18.12 will be closed, nightly from 8:30 p.m. - 5 a.m.”
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  The closures on I-405 will end on Friday, August 14“Effective: Aug 10, 2026, 12:00 AM Expected end: Aug 14, 2026, 5:00 AM 005: Nightly from 9 p.m. to 5 a.m. the next day beginning Monday, Aug. 10 to 5 a.m. Friday, Aug. 14, the northbound Interstate 5 off-ramp to northbound Southcenter Parkway (milepost 154) will close for maintenance. The off-ramp to southbound Southcenter Parkway will remain open.”
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  The closures on I-405 will be between mileposts 17.45 and 18.12“405: Monday, August 10 to the morning of Friday, August 14: Two Express Toll Lanes (ETL’s) of northbound I-405 between milepost 17.45 and milepost 18.12 will be closed, nightly from 8:30 p.m. - 5 a.m.”
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  I-5 will have multiple closures“005: Nightly from 9 p.m. to 5 a.m. the next day beginning Monday, Aug. 10 to 5 a.m. Friday, Aug. 14, the northbound Interstate 5 off-ramp to northbound Southcenter Parkway (milepost 154) will close for maintenance. The off-ramp to southbound Southcenter Parkway will remain open.”
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  A left lane closure on northbound I-5 will occur from Samish Way to Iowa Street“005: Daily from 6 to 10 a.m. starting Saturday, Aug. 15 to Sunday, Aug. 16, the left lane of northbound Interstate 5 will be closed for maintenance between Samish Way (milepost 252) and Iowa Street (milepost 254). The Iowa Street on-ramp to northbound I-5 will close from 6 a.m. to 1 p.m. Saturday, Aug. 15.”
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  The left lane closure on northbound I-5 will be on Saturday, August 15“005: Daily from 6 to 10 a.m. starting Saturday, Aug. 15 to Sunday, Aug. 16, the left lane of northbound Interstate 5 will be closed for maintenance between Samish Way (milepost 252) and Iowa Street (milepost 254). The Iowa Street on-ramp to northbound I-5 will close from 6 a.m. to 1 p.m. Saturday, Aug. 15.”
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  The left lane closure on northbound I-5 will last from 6 a.m. to 1 p.m.“The Iowa Street on-ramp to northbound I-5 will close from 6 a.m. to 1 p.m. Saturday, Aug. 15.”
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  An off-ramp closure to Southcenter Parkway will occur on I-5“005: Nightly from 9 p.m. to 5 a.m. the next day beginning Monday, Aug. 10 to 5 a.m. Friday, Aug. 14, the northbound Interstate 5 off-ramp to northbound Southcenter Parkway (milepost 154) will close for maintenance. The off-ramp to southbound Southcenter Parkway will remain open.”
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  The off-ramp closure to Southcenter Parkway will be from 9 p.m. to 5 a.m.“Nightly from 9 p.m. to 5 a.m. the next day beginning Monday, Aug. 10 to 5 a.m. Friday, Aug. 14, the northbound Interstate 5 off-ramp to northbound Southcenter Parkway (milepost 154) will close for maintenance. The off-ramp to southbound Southcenter Parkway will remain open.”
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  The off-ramp closure to Southcenter Parkway will be nightly until August 14“005: Nightly from 9 p.m. to 5 a.m. the next day beginning Monday, Aug. 10 to 5 a.m. Friday, Aug. 14, the northbound Interstate 5 off-ramp to northbound Southcenter Parkway (milepost 154) will close for maintenance. The off-ramp to southbound Southcenter Parkway will remain open.”
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  A paving project near Grand Mound will cause overnight lane closures“Overnight lane and ramp closures on I-5 between Maytown Rd and Old Hwy 99 for a <a href="https://wsdot.wa.gov/construction-planning/search-projects/i-5-old-highway-99-maytown-road-paving ">paving project</a> near Grand Mound.”
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  The paving project near Grand Mound will cause closures from August 11 to August 29No usable supporting receipt — unverified.
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  WSDOT's construction updates, as of August 13, 2026, indicate these closures are part of routine maintenance and paving projectsNo usable supporting receipt — unverified.
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  WSDOT's construction updates, as of August 13, 2026, indicate these closures are to improve road conditionsNo usable supporting receipt — unverified.