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Thursday, September 3, 2026

Update on LFP Roundabout project

City of Lake Forest Park's SR 104 / 40th Place NE Roundabout Project is well underway.

Current Work Water main installation, retaining wall preparation, excavation, curb/sidewalk demolition, roadway work

Community Access Pedestrian, bicycle and emergency responder access will always be maintained, but Traffic Detours, temporary lane shifts and flagging operations will occur.
  • Reminder: SB 40th Place NE is closed N of SR104 through late November 2026 - NO vehicles other than construction personnel & equipment are allowed to travel in both directions on 40th Place NE.
  • NO vehicles other than emergency first responders are permitted to travel SB 40th Place NE to SR 104.
Work Hours 
Daytime construction activities (7:00am to 3:30pm)

Construction Timeline – September 2026
  • September 1–4 — Water main installation along 184th; Wall 2 pad preparation and installation.
  • September 3–4 — Mass excavation in front of Wall 2 location.
  • Week of Sept. 7 — Water main work along 40th, Wall 3 pad preparation, curb/sidewalk demolition, and water-main testing.
  • Week of September 21 – Structural support for Wall construction begins.
What Residents Can Expect
  • Active construction equipment in the corridor.
  • Temporary traffic control and intermittent lane shifts.
  • Safe pedestrian routes maintained.
  • Bicycle accommodations maintained.
  • Emergency responder access maintained at all times.
  • Retaining wall, water main, excavation, and roadway-related work progressing through the corridor.
  • Dust control and erosion protection measures throughout construction.
Frequently Asked Questions

Will the road stay open? 
  • Yes. Traffic will be maintained with temporary control measures.
Can I still walk or bike through the area? 
  • Yes. Pedestrian and bicycle accommodations will remain available.
Will emergency vehicles have access? 
  • Yes. Emergency responder access will always be maintained.
What major work is planned in September? 
  • Water main installation, retaining wall preparation, excavation, curb/sidewalk demolition, and related roadway work are scheduled through mid-September.
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