
WSDOT maintenance crews will remove brush and clear danger trees alongside SR 503 near Amboy
CLARK COUNTY – Travelers in both directions of State Route 503 in Clark County should expect delays.
Beginning Monday, July 21, the Washington State Department of Transportation maintenance crews will remove brush and clear danger trees alongside SR 503 near Amboy. This work improves visibility, lowers the risk of fires, and keeps plants from growing onto the road.
What to expect
Monday, July 21 to Thursday, July 24:
- Travelers in both directions of SR 503 between Worthington Road (milepost 19) and Northeast 389th Street (milepost 19.7) will take turns moving through a single lane with flaggers each day from 8 a.m. to 4 p.m.
- During brush and tree removal, the speed limit will be reduced to 25 mph through the work zone.
For everyone’s safety, please slow down, stay focused and expect delays.
Know before you go
People can receive real-time travel information via the WSDOT mobile app, or by visiting our real-time travel map.
- Goodbye, bumpy ride on I-5 in VancouverThree coordinated WSDOT projects will improve more than 6 miles of I-5 in Clark County, backed by a $25 million investment.
- Nighttime work on I-5 between Ridgefield and Woodland will replace damaged concrete panels Sept. 14-19Granite Construction will close right and center lanes nightly on I-5 between mileposts 9.5 and 21.5 through Sept. 19.
- County seeks volunteers to serve on the Bicycle and Pedestrian Advisory CommitteeClark County seeks two volunteers, including one youth member, for its Bicycle and Pedestrian Advisory Committee; deadline is Oct. 11, 2026.
- Washington Rep. John Ley warns ballooning bridge budget needs reality checkRep. John Ley says the IBR ballooned from a $44M contract to a $13B–$15B project, with phase one still $2.2B short.
- POLL: The IBR project is described as only 30% designed and 30% funded after more than six years of work. How confident are you in the current management of the IBR program?IBR’s cost has climbed from $3.2–$4.8B to $15.2B while the project remains 30% designed and 30% funded.









