Infrastructure

I-405, I-5, and SR 527 closures scheduled for Puyallup area

Tuesday, September 1, 2026

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WSDOT will implement multiple overnight highway closures starting Monday, Aug. 31, through Friday, Sept. 4, affecting I-405, I-5, and SR 527 in the Puyallup area.

Southbound I-405 will close from milepost 12 to Coal Creek Parkway Southeast (milepost 10) overnight Thursday, Sept. 3, to Friday, Sept. 4. Northbound I-405 will close up to four lanes from milepost 11.5 to 13.7 nightly from Aug. 31 to Sept. 4. The right lane of northbound SR 527 at I-405 ramps will close overnight Aug. 31 to Sept. 1.

I-5 will see nightly lane reductions near Alger/Lake Samish Road (exit 240) from 8 p.m. to 5 a.m. through Sept. 4 for fish passage construction. WSDOT advises drivers to plan for delays and follow flaggers' directions through the work zones.

📄 Source: WSDOT — Highway Construction & Closures — https://wsdot.wa.gov/travel/road-construction

Source receipts5 of 10 claims supported · 50%

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WSDOT will implement multiple overnight highway closures starting Monday, Aug. 31No usable supporting receipt — unverified.
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WSDOT will implement multiple overnight highway closures through Friday, Sept. 4“005: The northbound and southbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Monday, Aug. 31, through Friday morning, Sept. 4, near Alger/Lake Samish Road (exit 240) for fish passage construction.”
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WSDOT will implement multiple overnight highway closures affecting I-405, I-5, and SR 527 in the Puyallup areaNo usable supporting receipt — unverified.
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Southbound I-405 will close from milepost 12 to Coal Creek Parkway Southeast (milepost 10) overnight Thursday, Sept. 3No usable supporting receipt — unverified.
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Southbound I-405 will close from milepost 12 to Coal Creek Parkway Southeast (milepost 10) overnight Friday, Sept. 4No usable supporting receipt — unverified.
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Northbound I-405 will close up to four lanes from milepost 11.5 to 13.7 nightly from Aug. 31 to Sept. 4“405: Up to four lanes of northbound I-405 from milepost 11.5 to milepost 13.7 will be closed nightly, 9:30 p.m. Monday, Aug. 31 – 4:30 a.m. Friday, Sept. 4.”
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The right lane of northbound SR 527 at I-405 ramps will close overnight Aug. 31 to Sept. 1“527: The right lane of northbound SR 527 at the I-405 ramps (milepost 2.6 to milepost 2.95) will be closed overnight from 11:59 p.m. Monday, Aug. 31 to 5 a.m. Tuesday, Sept. 1.”
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I-5 will see nightly lane reductions near Alger/Lake Samish Road (exit 240) from 8 p.m. to 5 a.m. through Sept. 4“005: The northbound and southbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Monday, Aug. 31, through Friday morning, Sept. 4, near Alger/Lake Samish Road (exit 240) for fish passage construction.”
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I-5 will see nightly lane reductions near Alger/Lake Samish Road (exit 240) for fish passage construction“005: The northbound and southbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Monday, Aug. 31, through Friday morning, Sept. 4, near Alger/Lake Samish Road (exit 240) for fish passage construction.”
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WSDOT advises drivers to plan for delays and follow flaggers' directions through the work zonesNo usable supporting receipt — unverified.