
Travelers should slow down, stay focused and follow directional signs through the work zone
VANCOUVER – Travelers who use Interstate 205 in Clark County should plan for lane closures and delays.
On Monday, July 21, the Washington State Department of Transportation maintenance crews will repair and replace traffic sensors along southbound I-205 near Northeast Fourth Plain Boulevard in Vancouver.
Traffic sensors are devices placed in the travel lanes that count vehicles, track speeds, measure vehicle sizes, and show when traffic is busiest. This information helps plan future road repairs and improvements to keep travelers safe and moving.
What to expect
- From 10 p.m., Monday, July 21 to 4 a.m., Tuesday, July 22: The left lane of southbound I-205 will close overnight between Northeast Fourth Plain Boulevard (milepost 31) and the State Route 500 interchange (milepost 30).
Travelers should slow down, stay focused and follow directional signs through the work zone. This work is weather dependent and may be rescheduled.
Know before you go
Get real-time travel information via the WSDOT mobile app, the real-time travel map, or by signing up for email updates and alerts.
Also read:
- Opinion: ‘A more responsible approach must be sought’Ken Vance argues a $10 billion funding gap makes the phased I-5 Bridge approach fiscally reckless, not responsible.
- ‘Light rail to nowhere’? Surging costs undercut I-5 bridge transit planVancouver’s promised light rail extension to Library Square has no timeline, and the waterfront station would sit 90 feet above ground.
- Washington, Oregon transportation commissions to discuss Interstate 5 bridge tollingWashington and Oregon commissions will jointly review I-5 bridge toll rate options and discount analysis on June 5.
- County Public Works reminds residents to secure loads before hauling, to reduce dangerous roadside debris and litterUnsecured vehicle loads cause more than 300 Washington crashes annually and dumped 150,000+ lbs of litter in Clark County in 2025.
- Weekend paving work closes southbound I-205 entrance from I-5 in Vancouver May 29-31Crews will use a smart work zone system with zipper merging to reduce delays during the I-205 closure.






