Infrastructure

Skagit Valley Road Closures Begin July 27

Tuesday, July 28, 2026

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Starting Monday, July 27, several Skagit Valley highways will have lane closures and alternating traffic for construction and utility work, according to WSDOT.

Southbound I-405 will have up to two lanes closed nightly from 11 p.m. to 4 a.m. between mileposts 18.11 and 16.45 until Friday morning. The center lane of southbound SR 527 will close nightly from 9 p.m. to midnight between July 27 and 30. State Route 203 will have one lane closed nightly from 7 p.m. to 6 a.m. through July 31 for paving. SR 96 will alternate traffic daily from 7 a.m. to 2 p.m. for utility work until Friday.

WSDOT notes flaggers and pilot cars will direct traffic during closures. The closures are expected to last through July 31, with some extending to August 8 for I-5 work near Maytown Road.

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

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Starting Monday, July 27, several Skagit Valley highways will have lane closures and alternating traffic for construction and utility workNo usable supporting receipt — unverified.
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WSDOT is the source of the informationNo usable supporting receipt — unverified.
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Southbound I-405 will have up to two lanes closed 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 Southbound I-405 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 Southbound I-405 will last until Friday morning“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 center lane of southbound SR 527 will close nightly from 9 p.m. to midnight“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 the center lane of southbound SR 527 will be between July 27 and 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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State Route 203 will have one lane closed nightly from 7 p.m. to 6 a.m.“203: From 7 p.m. to 6 a.m. Sunday nights through Friday mornings beginning Monday, July 27, one lane of State Route 203 will be closed for a paving project between just south of Duvall to the Monroe city limits (mileposts 12.53 to 23.20). Flaggers and pilot cars will direct alternating traffic through the remaining open lane.”
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The closure of State Route 203 will be through July 31 for paving“203: From 7 p.m. to 6 a.m. Sunday nights through Friday mornings beginning Monday, July 27, one lane of State Route 203 will be closed for a paving project between just south of Duvall to the Monroe city limits (mileposts 12.53 to 23.20). Flaggers and pilot cars will direct alternating traffic through the remaining open lane. Effective: Jul 24, 2026, 12:48 PM Expected end: Jul 31, 2026, 6:00 AM”
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SR 96 will alternate traffic daily from 7 a.m. to 2 p.m.“096: Daily from 7 a.m. to 2 p.m. beginning Monday, July 27 to 2 p.m. Friday, July 31, State Route 96 traffic will alternate with flaggers from East Lowell Larimer Road (milepost 4) to State Route 9 (milepost 6) for utilities work.”
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The traffic alternation on SR 96 is for utility work“096: Daily from 7 a.m. to 2 p.m. beginning Monday, July 27 to 2 p.m. Friday, July 31, State Route 96 traffic will alternate with flaggers from East Lowell Larimer Road (milepost 4) to State Route 9 (milepost 6) for utilities work.”
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The traffic alternation on SR 96 will last until Friday“096: Daily from 7 a.m. to 2 p.m. beginning Monday, July 27 to 2 p.m. Friday, July 31, State Route 96 traffic will alternate with flaggers from East Lowell Larimer Road (milepost 4) to State Route 9 (milepost 6) for utilities work.”
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WSDOT notes flaggers and pilot cars will direct traffic during closures“Flaggers and pilot cars will direct alternating traffic through the remaining open lane.”
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The closures are expected to last through July 31No usable supporting receipt — unverified.
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Some closures will extend to August 8 for I-5 work near Maytown Road“005: Overnight lane and ramp closures on I-5 near Maytown Road for a paving project. Crews are working on southbound I-5 towards Old Highway 99. When finished, work will switch to the northbound direction near Grand Mound. The speed limit on I-5 will be reduced from 70 mph to 55 mph from milepost 88.9 to 95.7 when crews are working. More info on the <a href="https://wsdot.wa.gov/construction-planning/search-projects/i-5-old-highway-99-maytown-road-paving ">project webpage</a>. Effective: Jul 22, 2026, 4:52 PM Expected end: Aug 8, 2026, 6:30 AM”