Cone Zone

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Updated 9/9/25

Fiber Optic Construction Project

🕤 September 10-11, 2025 – 9:30am – 3:30pm

 🚦 Traffic Impacts: Temporary lane closures will occur during working hours. Traffic control will be in place to guide vehicles safely through the work zones.

📍 Work Locations:

📌 The intersection of 228^th Ave NE and NE 12^th Pl

📌 The intersection of 228^th Ave NE and NE 15^th St

📌 The intersection of 228^th Ave NE and NE 18^th Pl

📌 The intersection of 228^th Ave NE and NE 25^th Way

📌 The intersection of Sahalee Way NE and 223^rd Ave NE

👷‍♂️ Crews will be on site working to determine location of existing utilities for planned fiber optic construction project.

Louis Thompson Road

🕤 Beginning September 8, 2025 – October 30, 2025

 🚦 Traffic Impacts: Traffic will switch back to one-way up the hill.  The detour helps keep drivers and residents safe while work is underway.

📍 Work Location: Louis Thompson Road

👷‍♂️ Crews will be installing curb, gutter, driveway approaches, retaining walls, and road widening.  Final paving is scheduled to be completed by end of October, after which two-way traffic will return.  School buses, mail delivery, and garbage pickup will continue as usual.

Watermain Installation

🕤 August 2025 – December 2025

 🚦 Traffic Impacts: Traffic control is being used and some minor delays are expected.

📍 Work Location:  Sahalee Drive East

👷‍♂️ Northwest Sammamish Water & Sewer