Road Work Begins on I-5, SR 508, SR 507

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  Multiple Washington State Department of Transportation (WSDOT) projects began or continue this week“005 [24 mi from Centralia–Chehalis]: Overnight northbound I-5 lane reductions begin as early as 6 p.m. near Lacey. Travelers can expect double-lane closures Tuesday through Saturday nights, reopening by 6 a.m. each weekday morning and as late as 9:30 a.m. on the weekends. Details on the <a href="https://bit.ly/4we6ZaO">project webpage</a>.”
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  The projects impact travel on major highways near Centralia–Chehalis“WSDOT highway construction and road closures within 50 miles of Centralia–Chehalis — 9/10/2026:”
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  Overnight lane reductions on northbound I-5 near Lacey will start as early as 6 p.m. on September 10, 2026“Overnight northbound I-5 lane reductions begin as early as 6 p.m. near Lacey.”
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  The overnight lane reductions on northbound I-5 near Lacey will continue through September 26, 2026“Effective: Aug 5, 2026, 10:00 AM Expected end: Sep 26, 2026, 6:00 PM”
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  Crews also began alternating traffic on SR 508 from milepost 22 to 26 near Bear Canyon starting September 10, 2026“Maintenance on SR 508 both directions from milepost 22 near Bear Canyon to milepost 26 near Dodge Road. Crews are alternating traffic through the work zone beginning at 10:20 am on September 10, 2026 until further notice. Slow down, use caution through the area, and expect delays.”
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  Crews began alternating traffic on SR 507 at 208th Street South near Spanaway for a roundabout project“507 [34 mi from Centralia–Chehalis]: Expect one-way alternating traffic around the clock on SR 507 at 208th Street South near Spanaway for a roundabout project. The contractor has one crew working between two roundabout sites. Travelers may not see crews working every day at both sites.”
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  The SR 507 project is effective September 8, 2026“Effective: Sep 8, 2026, 9:55 AM”
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  WSDOT advises travelers to slow down, use caution, and expect delays during these projects“Slow down, use caution through the area, and expect delays.”
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  The I-5 work includes double-lane closures Tuesday through Saturday nights“Overnight northbound I-5 lane reductions begin as early as 6 p.m. near Lacey. Travelers can expect double-lane closures Tuesday through Saturday nights, reopening by 6 a.m. each weekday morning and as late as 9:30 a.m. on the weekends.”
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  The I-5 work reopens by 6 a.m. on weekdays“Travelers can expect double-lane closures Tuesday through Saturday nights, reopening by 6 a.m. each weekday morning and as late as 9:30 a.m. on the weekends.”
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  The I-5 work reopens as late as 9:30 a.m. on weekends“Travelers can expect double-lane closures Tuesday through Saturday nights, reopening by 6 a.m. each weekday morning and as late as 9:30 a.m. on the weekends.”
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  The SR 507 project is scheduled to end September 14, 2026“Effective: Sep 8, 2026, 9:55 AM Expected end: Sep 14, 2026, 7:00 AM”
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  The SR 508 work continues until further notice“Maintenance on SR 508 both directions from milepost 22 near Bear Canyon to milepost 26 near Dodge Road. Crews are alternating traffic through the work zone beginning at 10:20 am on September 10, 2026 until further notice. Slow down, use caution through the area, and expect delays.”
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  Other projects include lane closures on SR 4No usable supporting receipt — unverified.
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  Other projects include lane closures on US 101No usable supporting receipt — unverified.
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  Specific start and end dates for lane closures on SR 4 and US 101 are provided by WSDOT“004 [38 mi from Centralia–Chehalis]: Monday, Aug. 17 through Friday, Sept. 18: A single lane in both directions of SR 4 between 50th Avenue (milepost 56.4) and 42nd Avenue (milepost 57.2) will be closed weekdays from 7:30 a.m. to 5 p.m., for buried gas main line extension work. Slow down, stay focused and watch for flaggers direction through the work zone. Effective: Aug 17, 2026, 5:00 AM Expected end: Sep 18, 2026, 5:00 PM 101 [47 mi from Centralia–Chehalis]: Wednesday, Sept. 9 through Thursday, Sept. 17: Travelers in both directions of US 101 between the SR 4 interchange (milepost 28.8) and the Grays Harbor County line (milepost 67), will encounter daytime delays from 6:30 a.m. to 4:30 p.m., for mowing along the shoulders of the highway. Travelers should slow down, move over and give crews room to work safely. Effective: Sep 9, 2026, 5:00 AM Expected end: Sep 17, 2026, 4:30 PM ”