Cone Zone

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Updated 11/21/25

Vactoring Services

🕤Nov 19-26, 2025  9:30am-3:00pm

🚦 Traffic Impacts: Possible one lane road at times. Flaggers will be present.

📍 Work Locations:

📌 228 Ave NE  from NE 8^th down Sahalee hill North bound and South bound

📌 Inglewood Hill Road

📌 East lake Sammamish Pkwy from Louis Thompson to Sammamish Landing

📌 244^th Ave NE From Windsor Blvd to NE 8^th

👷‍♂️ Catch basin cleaning and vactoring.

247th Ave SE Catch Basin Replacement Project

🕤Nov 3-Nov 24, 2025

🚦 Traffic Impacts: Temporary lane shifts, short-term driveway access impacts, construction equipment in roadway, and intermittent traffic control. Local access will be maintained.

📍 Work Locations: Along 247^th Ave SE

👷‍♂️ Replacement of a damaged catch basin and installation of a new drainage structure. One adjacent tree causing root damage will be removed to prevent future infrastructure impacts.

Louis Thompson Intersection Paving & Detour Limits

🕤 Detour limits change October 30:

🚦 Beginning October 30, the one-way detour on Louis Thompson Road will be shortened to include only the segment between 208th Avenue NE and East Main Street.

📍Local access:

• Residents traveling as far up the hill as 208th Avenue NE will be able to drive downhill during this modified detour through November 21.
• Residential locations uphill from East Main Street can be accessed coming down the hill.

👷‍♂️ This temporary traffic change is necessary to safely construct Walls 7 and 8 along the uphill lanes.  Please see the project page at this link, below, for ongoing updates: www.sammamish.us/projects/louis-thompson-tightline

Watermain Installation

🕤 August 2025 – December 2025

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

📍 Work Location: NE 36^th & NE 37^th off Sahalee Way

👷‍♂️ Northwest Sammamish Water & Sewer will be installing a new water main. 

PSE Gas Main Replacement

🕤 December 1-7, 2025   9:30am-3:00pm. In addition to weekdays, expect work to occur on some  Saturdays as well.

 🚦 Traffic Impacts: Traffic control will be done by a uniformed police officer.  Expect minor delays.

📍 Work Location: NE 12^th Pl and 228^th NE

👷‍♂️ PSE will be installing new gas main.