Cone Zone

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Updated 4/30/2026

Stormwater Pipe CCTV Inspection

• When: May 4 - May 8, 2026
• Work Location: 211^th Way Northeast, Northeast 13^th Place Northeast & 25th Way Northeast
• Traffic Impacts: Traffic disruptions will be minimal, with only occasional single-lane closures expected. Appropriate signage and traffic control measures will be in place.
• The project will involve pipe inspections using CCTV technology, along with cleaning and vactoring services as needed. Some pipes may require jetting to remove debris or obstructions.

 King County Wastewater Treatment Division Survey Work

• When: May 4-8, 2026: 7:00am – 3:30pm
• Work Location: 3206 East Lake Sammamish Parkway Northeast heading south to 29^th Street
• Traffic Impacts: None. Surveyors will be staged on shoulders of East Lake Sammamish Parkway Northeast
• True North will be surveying and marking utilities.

Water District

• When: May 1 – May 14, Monday-Friday, 9:30am-3:00pm
• Work Location: Sahalee Drive Northeast and Sahalee Way Northeast
• Traffic Impacts: West shoulder will have traffic impacts. Traffic Control will be present.
• Northeast Sammamish Sewer and Water will be doing a water tie.

 George Davis Creek Fish Passage Project

• When: April 27-May 1, Monday-Friday
• Work Location: East Lake Sammamish Parkway between Northwest 8^th Street to Louis Thompson Road
• Traffic Impacts: Possible minor traffic delays. Traffic control will be present
• PSE is coring a new gas line. Power lines are also being removed.

2026 Citywide Traffic Counts

• When: April 27-May 11
• Work Location: Citywide
• Traffic Impacts: This equipment will not impact traffic, however they may be felt when driving over them. Drivers should also use caution when passing the contractor’s vehicles when stopped on the side of the road to place tubes or check on their equipment.
• Tubes will be placed on main roadways to collect traffic volumes and cameras will be setup at intersections to collect data on vehicle movements.
• Project webpage link: https://www.sammamish.us/government/public-works/traffic-engineering/citywide-traffic-counts/

Issaquah School District

• When: April 30 – May 8
• Work Location: 4000 block of 228^th Avenue Southeast
• Traffic Impacts: Flaggers will be present and stopping cars for trucks to enter and exit the construction site.
• Construction truck traffic will be entering the road.

 Issaquah School District

• When: May 5 - 6, beginning at 9:30am
• Work Location: 4000 block of 228^th Avenue Southeast
• Traffic Impacts: Signage will be present stating the traffic revision.
• New striping for a temporary turn lane will be installed.

 Sewer Installation

• When: April 30 – May 6, 2026
• Work Location: 211^th Way Northeast, Northeast 17^th, Northeast 18th
• Traffic Impacts: Traffic control will be in place.
• Lakeside Industries will be jackhammering and raising utilities.