Southwest Washington Travel Planner

Planned construction work along state highways in Southwest Washington including: Clark, Cowlitz, Klickitat, Lewis, Pacific, Skamania and Wahkiakum counties. 

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Clark County

  • Nighttime travelers on eastbound SR 14 near Washougal should plan for overnight delays from 10 p.m. Saturday April 10 until 8 a.m. Sunday, April 11, and 10 p.m. Saturday April 24, until 8 a.m. Sunday, April 25, while crews route traffic around construction on the Camas Slough Bridge via the 6th Avenue off ramp.
  • Freight travelers who use northbound Interstate 5 will temporarily shift to use the center lane along the northbound span of the Lewis River Bridge about two miles south of Woodland. Shifting large truck traffic to use the center lane of northbound I-5 helps prevent further damage to the bridge deck and extends the usable life of temporary repairs until more permanent repairs can be scheduled when warmer weather returns. 

Cowlitz County

  • Beginning at 8 p.m., Monday, April 12 through 6 a.m., Saturday, April 17: A single lane on both directions of I-5 between Rogers Road and SR 506, will close nightly, for bridge painting work along the Cowlitz River Bridges.  
  • Beginning at 7:30 a.m., Monday, April 5 through 7:30 p.m., Saturday, April 10, travelers may encounter intermittent shoulder closures on the off-ramp from westbound SR 432 to SR 411, for interchange improvement work.  
  • Beginning at dusk on Monday, Dec. 21, 2020, until further notice, the gates to the upper level of SR 504/Spirit Lake Memorial Highway, near Coldwater Lake are closed for the winter. The scenic byway is closed from the Hummocks Trailhead to the Johnston Ridge Observatory, but Coldwater Lake still will be accessible as weather conditions allow. The gates to the upper level of the highway are expected to reopen in spring 2021. 

Lewis County   

  • Beginning at 6 a.m. on Monday, April 12 until 5 p.m. Friday, April 16, travelers on both directions of I-5 who use the SR 506 interchange at milepost 60.0 and the Rush Road interchange at milepost 73.2, may encounter daytime, single lane closures, for illumination work. 
  • Until Sept. 13, 2021, travelers on both directions SR 6 near Adna will shift to use a temporary bypass road with a reduced speed of 25 mph, Travelers on both directions of US 101 near milepost 1.2, just north of the Astoria-Megler Bridge should expect daytime delays Monday, March 29 through Friday, April 2, during emergency culvert replacement work.crews dig out old bridge piers, build a new bridge and remove and install a new culvert.

Pacific County   

  • Beginning at 8 a.m. on Tuesday, April 13, travelers on both directions of SR 6 will be detoured to use Pe Ell Avenue and North 3rd Street, until 5 p.m., for intersection repair work within the intersection of Main Street and 4th Avenue, in Pe Ell. 
  • Beginning on Tuesday, Feb. 23, 2021, until further notice, both directions of SR 401 between Megler and Naselle are closed due to roadway settlement caused by heavy rain. Travelers should use an alterate route. The Dismal Nitch Rest Area is also closed.
  • Travelers on both directions of US 101 near milepost 1.2, just north of the Astoria-Megler Bridge should expect daytime delays Monday, March 29 through Friday, April 2, during emergency culvert replacement work.

Safety tips for traveling through work zones

  • Pay attention - driver inattention is the number one cause of work zone accidents.
  • Leave room between you and the car ahead of you - most work zone accidents involve someone running into the car ahead of them.
  • Drive defensively - be aware of what is happening around you.
  • Merge into the proper lane before you reach the work zone.
  • Don't use cell phones or adjust your radio while driving.
  • Avoid work zones by using alternate routes.

Last updated: 4 p.m., Thursday, April 8, 2021