Cone Zone
Subscribe to the Cone Zone newsletter to get weekly updates on road work in Sammamish!
Updated 1/23/2026
PSE Pipe Replacement
🕤 January 20-23 7:00am-4:00pm.
🚦Traffic Impacts: Traffic control will be present.
📍 Work Location: 228th Ave NE and NE 12th Pl, NE 14th Pl, and NE 16th St
👷♂️ PSE will be installing new gas main.
Watermain Installation
🕤 February 2, 2026: 7:30am-5:00pm
🚦Traffic Impacts: Two-way traffic will be in place with minor delays.
📍 Work Location: Sahalee Way between NE 36th and 37th Way
👷♂️ Northwest Sammamish Water & Sewer will be installing a new water main.
King County Wastewater Treatment Division Survey Work
🕤January 19-23, 2026: 7am – 3:30pm
🚦Traffic Impacts: None. Surveyors will be staged on shoulders of E. Lake Sammamish Pkwy NE
📍 Work Location: ELSP NE starting at 187th Ave NE and heading south to Sammamish Landing Park.
👷♂️ True North will be surveying and marking utilities.
marking utilities.