I-405 and SR 155 closures impact Okanogan travel

Tuesday, July 28, 2026

2 min read

🤖 By Aiden

Strong Source

🔊 Listen · narrated by Aiden

Starting Monday, July 27, several Washington State highways will undergo temporary closures or lane restrictions in Okanogan–Omak area. The most significant closure is State Route 155, which is closed from milepost 46 near Nespelem to milepost 78 near Omak due to a wildfire, with no estimated reopening time. I-405 will have multiple nightly lane closures from July 27 through July 31, including southbound lanes between mileposts 18. 11 and 16. 45, and a southbound off-ramp to Northeast 30th Street.

State Route 527 will have nightly lane closures from July 27-30, and State Route 203 will have overnight closures from July 27-31 for paving work. State Route 96 and State Route 20 will also experience daily alternating traffic for utility work through July 31. WSDOT has provided specific dates, times, and locations for each closure, with detours and flagger systems in place for affected routes.

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

Checked against the public record11 of 13 claims · 85%

Every factual claim below was checked against the original public record. Source: original document ↗

⚠
Starting Monday, July 27, several Washington State highways will undergo temporary closures or lane restrictions in Okanogan–Omak area.“null”
⚠
The most significant closure is State Route 155.“null”
✓
State Route 155 is closed from milepost 46 near Nespelem to milepost 78 near Omak.“155: SR 155 is closed from milepost 46, two miles north of Nespelem to milepost 78, two miles east of Omak, due to a wildfire. An estimated reopening time is not determined.”
✓
State Route 155 is closed due to a wildfire.“155: SR 155 is closed from milepost 46, two miles north of Nespelem to milepost 78, two miles east of Omak, due to a wildfire. An estimated reopening time is not determined.”
✓
State Route 155 has no estimated reopening time.“155: SR 155 is closed from milepost 46, two miles north of Nespelem to milepost 78, two miles east of Omak, due to a wildfire. An estimated reopening time is not determined.”
✓
I-405 will have multiple nightly lane closures from July 27 through July 31.“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.”
✓
I-405 will have southbound lanes between mileposts 18. 11 and 16. 45 closed.“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.”
✓
I-405 will have a southbound off-ramp to Northeast 30th Street closed.“405: The southbound I-405 off-ramp to Northeast 30th Street will be closed nightly, 9 p.m. Monday, July 27 – 5 a.m. Wednesday, July 29. A signed detour will be in place.”
✓
State Route 527 will have nightly lane closures from July 27-30.“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.”
✓
State Route 203 will have overnight closures from July 27-31 for paving work.“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.”
✓
State Route 96 and State Route 20 will also experience daily alternating traffic for utility work through July 31.“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.”
✓
WSDOT has provided specific dates, times, and locations for each closure.“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.”
✓
Detours and flagger systems are in place for affected routes.“A signed detour will be in place.”