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.

Stay Connected

• Notify Me • Ballinger Way NE Roundabout Project

More information at QR code