Aberdeen roadwork closes lanes, bridges through mid-August

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  WSDOT is closing lanes and bridges across Aberdeen-area highways from August 16 through August 24No usable supporting receipt — unverified.
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  The most significant closure is a full southbound I-405 shutdown from Coal Creek Parkway Southeast to North 30th StreetNo usable supporting receipt — unverified.
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  The southbound I-405 shutdown runs from 11:30 p.m. Friday, August 21“405: All lanes of southbound I-405 from Coal Creek Parkway Southeast to North 30th Street will be fully closed day and night, 11:30 p.m. Friday, Aug. 21 – 4 a.m. Monday, Aug. 24.”
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  The southbound I-405 shutdown ends at 4 a.m. Monday, August 24“405: All lanes of southbound I-405 from Coal Creek Parkway Southeast to North 30th Street will be fully closed day and night, 11:30 p.m. Friday, Aug. 21 – 4 a.m. Monday, Aug. 24.”
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  Other closures include one-lane traffic on US-101 near Sol Duc River August 19-20“101: From 8:30 a.m. to 3:30 p.m. Wednesday, Aug. 19 and Thursday, Aug. 20, US 101 will reduce to one lane at milepost 211 near Sol Duc River for bridge repairs. Travelers can expect alternating traffic and stops of up to 15 minutes during the work.”
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  Lane closures on SR-18 westbound and eastbound August 19-20“018: From 9 a.m. to 1 p.m. Wednesday, Aug. 19, the right lane of westbound State Route 18 will close west of Southeast Auburn-Black Diamond Road (milepost 5) for maintenance. From 9 a.m. to 3 p.m. Thursday, Aug. 20, the right lane of eastbound SR 18 will close in this area.”
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  A northbound SR-99 bridge closure August 22-23“099: From 5 a.m. Saturday, Aug. 22 to 11:59 p.m. Sunday, Aug. 23, the northbound State Route 99 First Avenue South Bridge will close from State Route 509 to East Marginal Way South (milepost 27). The northbound SR 99/Holden Street on-ramp to State Route 509 and the northbound SR 99 off-ramp to South Michigan Street will also close.”
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  Nightly I-90 off-ramp closures August 16-19“090: From as early as 9 p.m. to 5 a.m. nightly Sunday, Aug. 16, through Wednesday morning, Aug. 19, the eastbound I-90 off-ramps to 148th and 150th Avenues Southeast will close. Signed detours will guide people around the closures.”
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  SR-904 will have intermittent closures August 18“904: Intermittent Lane Closures with piloted traffic for road work on SR 904 both directions between milepost 0 at I-90 to milepost 9 beginning at 7:34 am on August 18, 2026 until about 4:00 PM.”
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  SR-730 has ongoing alternating traffic until September 18“730: SR 730 between the Jct. of US 12 and the Oregon State Line milepost 0 to 6: Monday through Friday from 6 a.m. to 6 p.m. until further notice, there will be flagger and pilot vehicle controlled alternating traffic for roadwork.”
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  Travelers should expect detours, delays, and alternating traffic“Signed detours will be in place.”
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  WSDOT recommends checking the travel advisory for updatesNo usable supporting receipt — unverified.
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  WSDOT recommends planning routes ahead of timeNo usable supporting receipt — unverified.
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  The closures support bridge repairs, guardrail installation, and road maintenance“These closures support ongoing guardrail installation on eastbound I-90.”