Infrastructure

I-5 and I-405 closures affect Tacoma traffic

Friday, August 21, 2026

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I-5 and I-405 highway lanes will be closed or reduced in Tacoma for overnight and weekend construction work through August 21-22, according to Washington State Department of Transportation (WSDOT) records.

On I-5 northbound, two lanes will close nightly from 8 p.m. Thursday, August 20, to 5 a.m. Friday, August 21, between SR 503 and Dike Access Road. Additionally, the right lane on I-5 northbound will be closed from milepost 76.5 to 78 beginning at 6:52 p.m. on August 20. On I-405, multiple closures are scheduled: northbound express toll lane will be closed nightly from 8:30 p.m. August 17 to 5 a.m. August 21, and southbound lanes will close nightly from 10:30 p.m. August 19 to 5 a.m. August 21.

WSDOT advises drivers to plan ahead for delays and use caution. The I-405 southbound closure on August 24-25 is scheduled for pavement repair and crack sealing, with two lanes closing from 9 p.m. to 5 a.m.

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

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I-5 and I-405 highway lanes will be closed or reduced in Tacoma for overnight and weekend construction work through August 21-22No usable supporting receipt — unverified.
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Washington State Department of Transportation (WSDOT) records state the aboveNo usable supporting receipt — unverified.
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On I-5 northbound, two lanes will close nightly from 8 p.m. Thursday, August 20, to 5 a.m. Friday, August 21, between SR 503 and Dike Access Road“005: From 8 p.m., Thursday, Aug. 20, to 5 a.m. Friday, Aug. 21: Up to two lanes of northbound I-5 will close overnight between SR 503 (milepost 21.5) and Dike Access Road (milepost 23), for paving work. Plan ahead and expect delays.”
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The right lane on I-5 northbound will be closed from milepost 76.5 to 78 beginning at 6:52 p.m. on August 20No usable supporting receipt — unverified.
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On I-405, multiple closures are scheduled“405: The left express toll lane of northbound I-405 between Northeast 160th Street (milepost 22.61) and SR 527 (milepost 27.1) will be closed nightly from 8:30 p.m. Monday, August 17 to 5 a.m. Friday, August 21.”
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Northbound express toll lane on I-405 will be closed nightly from 8:30 p.m. August 17 to 5 a.m. August 21“405: The left express toll lane of northbound I-405 between Northeast 160th Street (milepost 22.61) and SR 527 (milepost 27.1) will be closed nightly from 8:30 p.m. Monday, August 17 to 5 a.m. Friday, August 21.”
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Southbound lanes on I-405 will close nightly from 10:30 p.m. August 19 to 5 a.m. August 21“405: Up to two lanes of southbound I-405 from Coal Creek Parkway Southeast (milepost 9.5) to milepost 8.63 will be closed nightly, 10:30 p.m. Wednesday, Aug. 19 – 5 a.m. Friday, Aug. 21.”
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WSDOT advises drivers to plan ahead for delays and use caution“Up to two lanes of northbound I-5 will close overnight between SR 503 (milepost 21.5) and Dike Access Road (milepost 23), for paving work. Plan ahead and expect delays.”
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The I-405 southbound closure on August 24-25 is scheduled for pavement repair and crack sealing“405: From 9 p.m. Monday, Aug. 24, until 5 a.m. Tuesday, Aug. 25, two lanes of southbound I-405 will close between SR 520 and NE 14th Street for pavement repair and crack sealing. Expect delays through the work zone.”
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Two lanes on I-405 southbound will close from 9 p.m. to 5 a.m. on August 24-25“405: From 9 p.m. Monday, Aug. 24, until 5 a.m. Tuesday, Aug. 25, two lanes of southbound I-405 will close between SR 520 and NE 14th Street for pavement repair and crack sealing. Expect delays through the work zone.”