Cone Zone
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Updated 5/3/24
Guardrail Repair
From May 6 through 15, the City’s contractor will be repairing sections of guardrail at 15 sites along East Lake Sammamish Pkwy NE & SE, as well as one location on 212th Way (scheduled for 5/10). Work will take place between 8 am to 4 pm. One lane will be closed. Traffic will be alternating with flaggers.
Subgrade Assessments
The City’s geotechnical consultant will be working in the roadway at three different sites in Sammamish:
Location: E Lake Sammamish Pkwy NE, just south of Inglewood Hill Rd
Dates: May 8, 10, and 13, approximately 9 am to 3pm.
Traffic impacts: Geotechnical boring will take place in the west (southbound) lane. The southbound lane will be closed. Traffic will be alternating with flaggers.
Location: SE 24th Street, just west of 232nd Ave SE
Date: May 14, approximately 9 am to 12 pm
Traffic impacts: Geotechnical boring will take place within the north sidewalk, near the north (westbound) lane. The westbound lane will be closed. Traffic will be alternating with flaggers.
Location: SE 24th Street, just east of 236th Ave SE
Date: May 14, approximately 9 am to 3 pm
Traffic impacts: Geotechnical boring will take place in the south (eastbound) lane. The Eastbound lane will be closed. Traffic will be alternating with flaggers.
Gas Main Replacement: 212th Ave SE and Vicinity
Starting the week of April 15 and for approximately one month, PSE will be working on a gas main replacement on 212th Ave SE, SE 27Th St, SE 28Th Pl, SE 32nd and SE 34th St. Work will take place between the hours of 8 am – 3:30 pm. Traffic control will be used, some delays expected.
Pedestrian Signal Revisions
The city has made signal revisions at several locations on 228th to reduce wait times and improve pedestrian mobility. These revisions will allow left turns to happen while yielding to pedestrians crossing north-south. The city will analyze intersections and selectively implement this at locations where pedestrians experience frustratingly long wait times.
Notices for construction activity outside of the City of Sammamish:
Road maintenance on 244th Ave NE near Redmond Fall City Rd (SR-202)
This is a King County Local Services project.
Due to a slide occurring in winter 2020, both lanes of 244th Ave NE are narrowed until the impacted support wall can be repaired. The repair of the support wall is expected to begin in Summer 2024. Soil samples yielded unexpected data, which caused the design phase to be extended. King County Road Services Division has a 24/7 Road Helpline - (206) 477-8100. More information on this project.
WSDOT Traffic Alerts
Traffic Alert: I-90 Lane Closures
Washington State Department of Transportation (WSDOT) crews are continuing repairs on the Interstate 90 project, which will have congestion impacts, especially during peak travel time. These are a continuation of repairs WSDOT began in summer 2022. While this work is occurring, please plan ahead and allow extra time.
State Route 18 Closures
People who use State Route 18 should expect slight traffic shifts during the daytime commute and intermittent nightly lane reductions. This may be as early as 8 p.m. Mondays through Thursdays, with all lanes reopening by 5 a.m. Flaggers will direct motorists when traffic is reduced to one lane. People should continue to plan extra time for their trips, as contractor crews work to widen the highway and redesign the interchange.
More information can be found here: https://wsdot.wa.gov/construction-planning/search-projects/i-90-sr-18-interchange-improvements