I-405, SR 527 closures for overnight work

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  I-405 southbound will close nightly from 11 p.m. to 4 a.m.“405: Monday, July 27 to the morning of Friday, July 31: Up to two lanes of southbound I-405 between milepost 18.11 and milepost 16.45 will be closed, nightly from 11 p.m. – 4 a.m.”
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  The closure of I-405 southbound will be between mileposts 18.11 and 16.45“405: Monday, July 27 to the morning of Friday, July 31: Up to two lanes of southbound I-405 between milepost 18.11 and milepost 16.45 will be closed, nightly from 11 p.m. – 4 a.m.”
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  The closure of I-405 southbound will last through Friday, July 31“405: Monday, July 27 to the morning of Friday, July 31: Up to two lanes of southbound I-405 between milepost 18.11 and milepost 16.45 will be closed, nightly from 11 p.m. – 4 a.m.”
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  SR 527's southbound center lane will close nightly from 9 p.m. Monday“527: The center lane of southbound SR 527 from 214th Street Southeast to the southbound I-405 off-ramp will be closed nightly from 9 p.m. Monday, July 27 to 12 a.m. Thursday, July 30.”
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  The closure of SR 527's southbound center lane will be to 12 a.m. Thursday“527: The center lane of southbound SR 527 from 214th Street Southeast to the southbound I-405 off-ramp will be closed nightly from 9 p.m. Monday, July 27 to 12 a.m. Thursday, July 30.”
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  The closure of SR 527's southbound center lane will last through July 30“527: The center lane of southbound SR 527 from 214th Street Southeast to the southbound I-405 off-ramp will be closed nightly from 9 p.m. Monday, July 27 to 12 a.m. Thursday, July 30.”
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  WSDOT reports both closures are for construction and repair workNo usable supporting receipt — unverified.
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  Drivers should expect delays“Watch for flaggers. Beginning at 6:10 am on July 28, 2026, until about 1:30 pm. Follow detour in place and expect delay.”
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  Drivers should use alternate routesNo usable supporting receipt — unverified.
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  The I-405 closure affects travel between Puyallup and TacomaNo usable supporting receipt — unverified.
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  SR 527 connects to Sumner and Bonney LakeNo usable supporting receipt — unverified.
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  Closures on SR 203, SR 96, and SR 20 will also continue through the weekNo usable supporting receipt — unverified.
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  WSDOT advises drivers to watch for flaggers during work hours“Flaggers and pilot cars will direct alternating traffic through the remaining open lane.”
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  WSDOT advises drivers to watch for pilot cars during work hours“Flaggers and pilot cars will direct alternating traffic through the remaining open lane.”