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Know before you go. Make sure there aren't any unexpected delays in your drive by checking the weekly News Feed below for scheduled work project in Sammamish.

Please Note: Schedules may change due to weather and/or equipment availability.


Know before you go. Make sure there aren't any unexpected delays in your drive by checking the weekly News Feed below for scheduled work project in Sammamish.

Please Note: Schedules may change due to weather and/or equipment availability.

  • Road Projects for the Week of November 26 - December 2

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    Sewer Force Main Project on East Lake Sammamish Parkway

    The Sammamish Plateau Water and Sewer District started a sewer force main project on East Lake Sammamish Parkway near Big Block Brewing in early November. The limits of this work are SE 33rd St and SE 37th Pl. Work hours are 7:00 a.m. - 4:00 p.m.

    The speed limit will be legally reduced to 25 mph during this project in this area. Variable message boards are in place to the north and south of the area of work. Drivers should use caution and expect delays. This project will last until the end of December.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Work was performed in the following locations:

    1. 228th Ave SE from Issaquah Pine Lake Rd to SE 24th St;
    2. Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and
    3. 247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Most of the work has been completed. Replacement of the pedestrian crossing warning beacons at Klahanie Dr SE and 249th Pl SE is the only work remaining. This work is scheduled to be completed by early December.


    SE 4th St from 218th Ave SE to 228th Ave SE

    Crews will be working on storm sewer manholes in five locations. This work is scheduled to begin November 28th, weather permitting, and is anticipated to last a few days. Flaggers will be directing traffic around the work between the hours of 7:00 a.m. and 4:00 p.m.


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Gas main work in the Tree Farm Neighborhood is complete. Asphalt patching has started. This work will last at least two weeks and take place Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Rough Pavement Reminder: PSE’s work is temporarily covered with asphalt, but the surface is currently rough. Asphalt patching is taking place to restore pavement condition as quickly as possible. In the meantime, motorists and bicyclists should use caution when navigating the area.

    Drivers should expect delays and use caution. Impacted streets are NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of November 19 - 25

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    Sewer Force Main Project on East Lake Sammamish Parkway

    The Sammamish Plateau Water and Sewer District started a sewer force main project on East Lake Sammamish Parkway near Big Block Brewing in early November. The limits of this work are SE 33rd St and SE 37th Pl. Work hours are 7:00 a.m. - 4:00 p.m.

    The speed limit will be legally reduced to 25 mph during this project in this area. Variable message boards are in place to the north and south of the area of work. Drivers should use caution and expect delays. This project will last until the end of December.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.

    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Asphalt patching on NE 8th St is complete. Starting on November 18, some sections of concrete curb, gutter, and sidewalk will be replaced. Work is anticipated to last for multiple days and will take place Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Gas main work in the Tree Farm Neighborhood is complete. Asphalt patching has started and work will last at least two weeks.

    Rough Pavement Reminder: PSE’s recent gas work on NE 8th St between 228th Ave NE and easterly roundabout is temporarily covered with asphalt, but the surface is currently rough. Staff are aware of this are working with PSE to have the pavement restored to a better condition as quickly as possible. In the meantime, motorists and bicyclists are reminder to use caution when navigating the area with their motor vehicles.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.






    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of November 12 - 18

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    Sewer Force Main Project on East Lake Sammamish Parkway

    On November 7, the Sammamish Plateau Water and Sewer District is starting a new sewer force main project on East Lake Sammamish Parkway near Big Block Brewing. The limits of this work are SE 33rd St and SE 37th Pl. Work hours are 7:00 a.m. - 4:00 p.m.

    The speed limit will be legally reduced to 25 mph during this project in this area. Variable message boards are in place to the north and south of the area of work. Drivers should use caution and expect delays. This project will last until the end of December.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.

    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    The gas main replacement on NE 8th St is complete. Asphalt patching and some concrete work in this area is scheduled to start in early November. This work is dependent on weather conditions, as it requires dry surfaces. Work is anticipated to last for two weeks and will occur Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Gas main work in the Tree Farm Neighborhood is complete. Asphalt patching will take place once asphalt patching on NE 8th St is complete.

    Rough Pavement Reminder: PSE’s recent gas work on NE 8th St between 228th Ave NE and easterly roundabout is temporarily covered with asphalt, but the surface is currently rough. Staff are aware of this are working with PSE to have the pavement restored to a better condition as quickly as possible. In the meantime, motorists and bicyclists are reminder to use caution when navigating the area with their motor vehicles.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.






    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of November 5 - 11

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    Sewer Force Main Project on East Lake Sammamish Parkway

    On November 7, the Sammamish Plateau Water and Sewer District is starting a new sewer force main project on East Lake Sammamish Parkway near Big Block Brewing. The limits of this work are SE 33rd St and SE 37th Pl. Work hours are 7:00 a.m. - 4:00 p.m.

    The speed limit will be legally reduced to 25 mph during this project in this area. Variable message boards are in place to the north and south of the area of work. Drivers should use caution and expect delays. This project will last until the end of December.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.

    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Crews from Puget Sound Energy and InfraSource are working to replace portions of the existing underground natural gas main with new, corrosion-resistant, plastic pipe. Traffic control flaggers and signs will guide vehicles and pedestrians safely around the project areas and there will be lane closures and revisions as crews move along the project route.

    The gas main replacement on NE 8th St is complete. Asphalt patching and some concrete work in this area is scheduled to start in early November. This work is dependent on weather conditions, as it requires dry surfaces. Work is anticipated to last for two weeks and will occur Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Gas main work in the Tree Farm Neighborhood is complete. Asphalt patching will take place once asphalt patching on NE 8th St is complete.

    Rough Pavement Reminder: PSE’s recent gas work on NE 8th St between 228th Ave NE and easterly roundabout is temporarily covered with asphalt, but the surface is currently rough. Staff are aware of this are working with PSE to have the pavement restored to a better condition as quickly as possible. In the meantime, motorists and bicyclists are reminder to use caution when navigating the area with their motor vehicles.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.





    Striping and Thermoplastic Markings Maintenance Work

    The City will be performing striping and thermoplastic maintenance work on the city’s arterials throughout the summer to refresh existing fog lines, center lines, and thermoplastic markings. Thermoplastic markings include arrows, stop bars, bike symbols, and other markings in the roadway. The arterials being targeted are shown in the map below. This type of work requires dry road pavement so dry weather days are being targeted. Drivers should expect delays and use caution.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of October 29 - November 4

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    Steel Plate on 228th Ave NE

    There will be a steel plate placed on the rightmost southbound lane of 228th Ave NE just south of the NE 2nd St, next to the Central Washington University - Sammamish campus. Drivers should use caution.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.


    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Crews from Puget Sound Energy and InfraSource will be working to replace portions of the existing underground natural gas main with new, corrosion-resistant plastic pipe. Traffic control flaggers and signs will guide vehicles and pedestrians safely around the project areas and there will be lane closures and revisions as crews move along the project route.

    Gas main work in the Tree Farm Neighborhood is ongoing. Work will take place between the hours of 8:00 a.m. to 4:00 p.m.

    The gas main replacement on NE 8th St is complete. Necessary asphalt restoration should begin in late October. Work on NE 8th St. will take place Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Rough Pavement Reminder: PSE’s recent gas work on NE 8th St between 228th Ave NE and easterly roundabout is temporarily covered with asphalt, but the surface is currently rough. Staff are aware of this are working with PSE to have the pavement restored to a better condition as quickly as possible. In the meantime, motorists and bicyclists are reminder to use caution when navigating the area with their motor vehicles.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.





    Striping and Thermoplastic Markings Maintenance Work

    The City will be performing striping and thermoplastic maintenance work on the city’s arterials throughout the summer to refresh existing fog lines, center lines, and thermoplastic markings. Thermoplastic markings include arrows, stop bars, bike symbols, and other markings in the roadway. The arterials being targeted are shown in the map below. This type of work requires dry road pavement so dry weather days are being targeted. Drivers should expect delays and use caution.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    *This work began on April 15, 2022

    Crews are scheduled to close the on-ramp from Redmond Way to westbound SR 520 for several months in order to build a new on-ramp. This is part of the Redmond Link Extension construction. Drivers should plan accordingly due to the ramp closure. To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of October 22 - 28

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    Emergency Tree Removal on East Lake Sammamish Parkway

    There is an emergency tree removal happening the morning of Wednesday October 26th on East Lake Sammamish Parkway just north of the Sammamish Landing Park (see map below). Work is planned to start at 8:30 am. There will be flaggers directing traffic and the northbound lane will be closed along with short full lane closures when larger sections of the tree come down. The work and cleanup are expected to take one hour.



    Cell Tower Work - Expect Delays

    Crews are working on the cell tower outside the Heritage Hills Neighborhood entrance on Sahalee Way NE and NE 28th Pl. Drivers should expect some delays. Traffic control will be guiding cars and pedestrians through the work zone. Work started on 10/24 and is anticipated to continue until 10/28. Working hours will be 9:30 a.m.- 3:30 p.m.


    Eastbound Issaquah-Fall City Road Work

    Work is occurring on the South side of IFCR, heading eastbound, approximately 300 meters before the roundabout at IFCR and 247th PL SE. IFCR will be closed down to a single lane as needed for work. See below for a map indicating the area of work.

    Work will start 30 minutes after Pacific Cascade Middle School's start times on Wednesday, 10/26 and Thursday, 10/27. Hours of work are as follows:

    • Wednesday, 10/26: 10:30 a.m. to 3:00 p.m.
    • Thursday, 10/27: 8:30 a.m. to 2:00 p.m.


    Weekend Closure of Offramp from Eastbound SR 520 to Redmond Way/SR 202

    This is a Sound Transit Project

    Beginning the evening of Friday, October 21, crews will be closing the offramp from eastbound State Route 520 to Redmond Way/State Route 202 in order to perform work near the offramp.

    This closure will be in place from 9 p.m. on Friday, October 21st to 5 a.m. on Monday, October 24th. Check out the map for detours. Learn more about this closure on Sound Transit's construction alert, linked here.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.


    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Crews from Puget Sound Energy and InfraSource will be working to replace portions of the existing underground natural gas main with new, corrosion-resistant plastic pipe. Traffic control flaggers and signs will guide vehicles and pedestrians safely around the project areas and there will be lane closures and revisions as crews move along the project route.

    Gas main work in the Tree Farm Neighborhood is ongoing. Work will take place between the hours of 8:00 a.m. to 4:00 p.m.

    The gas main replacement on NE 8th St is complete. Necessary asphalt restoration should begin in late October. Work on NE 8th St. will take place Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Rough Pavement Reminder: PSE’s recent gas work on NE 8th St between 228th Ave NE and easterly roundabout is temporarily covered with asphalt, but the surface is currently rough. Staff are aware of this are working with PSE to have the pavement restored to a better condition as quickly as possible. In the meantime, motorists and bicyclists are reminder to use caution when navigating the area with their motor vehicles.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.





    Striping and Thermoplastic Markings Maintenance Work

    The City will be performing striping and thermoplastic maintenance work on the city’s arterials throughout the summer to refresh existing fog lines, center lines, and thermoplastic markings. Thermoplastic markings include arrows, stop bars, bike symbols, and other markings in the roadway. The arterials being targeted are shown in the map below. This type of work requires dry road pavement so dry weather days are being targeted. Drivers should expect delays and use caution.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    *This work will begin on April 15, 2022, and last for 4 months.

    Crews are scheduled to close the on-ramp from Redmond Way to westbound SR 520 for four months in order to build a new on-ramp. This is part of the Redmond Link Extension construction. Drivers should plan accordingly due to the ramp closure. To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of October 15 - 21

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    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.


    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Crews from Puget Sound Energy and InfraSource will be working to replace portions of the existing underground natural gas main with new, corrosion-resistant plastic pipe. Traffic control flaggers and signs will guide vehicles and pedestrians safely around the project areas and there will be lane closures and revisions as crews move along the project route.

    Gas main work in the Tree Farm Neighborhood is ongoing. Work will take place between the hours of 8:00 a.m. to 4:00 p.m.

    The gas main replacement on NE 8th St is complete. Necessary asphalt restoration should begin in late October. Work on NE 8th St. will take place Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Rough Pavement Reminder: PSE’s recent gas work on NE 8th St between 228th Ave NE and easterly roundabout is temporarily covered with asphalt, but the surface is currently rough. Staff are aware of this are working with PSE to have the pavement restored to a better condition as quickly as possible. In the meantime, motorists and bicyclists are reminder to use caution when navigating the area with their motor vehicles.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.





    Striping and Thermoplastic Markings Maintenance Work

    The City will be performing striping and thermoplastic maintenance work on the city’s arterials throughout the summer to refresh existing fog lines, center lines, and thermoplastic markings. Thermoplastic markings include arrows, stop bars, bike symbols, and other markings in the roadway. The arterials being targeted are shown in the map below. This type of work requires dry road pavement so dry weather days are being targeted. Drivers should expect delays and use caution.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    *This work will begin on April 15, 2022, and last for 4 months.

    Crews are scheduled to close the on-ramp from Redmond Way to westbound SR 520 for four months in order to build a new on-ramp. This is part of the Redmond Link Extension construction. Drivers should plan accordingly due to the ramp closure. To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of October 8 - 14

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    Catch Basin Repairs on Issaquah-Pine Lake Road and 230th Ln SE

    There will be catch basin repairs on Issaquah-Pine Lake Road near 230th Ln SE on Friday October 7th from 9:30 AM - 2:00 PM. Flaggers will be directing traffic around the construction.


    Tree Pruning on 228th Ave SE

    The City's tree contactor will be pruning the street trees on 228th Ave SE starting at East Main and heading southbound to SE 4th with one lane closed from 9:30 AM to 3:00 PM starting Friday October 7th with a completion date of the end of day Wednesday October 12th.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.


    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Crews from Puget Sound Energy and InfraSource will be working to replace portions of the existing underground natural gas main with new, corrosion-resistant plastic pipe.

    Gas main work in the Tree Farm Neighborhood is ongoing. Work will take place between the hours of 8:00 a.m. to 4:00 p.m.

    The gas main replacement on NE 8th St is complete. Necessary asphalt restoration began in October. Work on NE 8th St. will take place Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Traffic control flaggers and signs will guide vehicles and pedestrians safely around the project areas and there will be lane closures and revisions as crews move along the project route. The bus stop on NE 8th St will be moved 250 ft. west of its current location. Some street parking will be impacted. “No parking” signs will be placed in the areas prior to work beginning.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.





    Striping and Thermoplastic Markings Maintenance Work

    The City will be performing striping and thermoplastic maintenance work on the city’s arterials throughout the summer to refresh existing fog lines, center lines, and thermoplastic markings. Thermoplastic markings include arrows, stop bars, bike symbols, and other markings in the roadway. The arterials being targeted are shown in the map below. This type of work requires dry road pavement so dry weather days are being targeted. Drivers should expect delays and use caution.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    New School Zone Flashers on Issaquah - Pine Lake Road

    The city has installed three new school zone flashing signs on Issaquah-Pine Lake Road near Cedar Trails Elementary to alert drivers of walking students and the reduced speed of 20mph during drop off and pick up times. The exhibit below shows their locations. Drivers should slow down and use caution when these signs are flashing in the mornings and afternoons.


    Changes to SE 32nd and 244th Ave SE Intersection

    The city changed the intersection of SE 32nd and 244th Ave SE into an all-way stop control due to traffic concurrency issues. New stop signs and stop bars were placed on the approach legs of SE 32nd, in addition to the existing stop sign on 244th. This change took place the week of August 15th and advance warning message signs are in place. Drivers should slow down use caution with this new traffic control change.



    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    *This work will begin on April 15, 2022, and last for 4 months.

    Crews are scheduled to close the on-ramp from Redmond Way to westbound SR 520 for four months in order to build a new on-ramp. This is part of the Redmond Link Extension construction. Drivers should plan accordingly due to the ramp closure. To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of October 1 - 7

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    SE 24th Street Electric System Upgrade Project

    This is a PSE project. PSE and Potelco electric crews will be installing a new recloser on an existing utility pole on SE 24th Street between 244th Ave SE and 245th Ave SE. The work began on Wednesday September 28th and will complete on approximately Friday September 30th. SE 24th Street will be reduced to one lane with flaggers and signs directing traffic safely around the work area.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.


    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Crews from Puget Sound Energy and InfraSource will be working to replace portions of the existing underground natural gas main with new, corrosion-resistant plastic pipe.

    Gas main work in the Tree Farm Neighborhood is ongoing. Work will take place between the hours of 8:00 a.m. to 4:00 p.m.

    The gas main replacement on NE 8th St is complete. Necessary asphalt restoration began in October. Work on NE 8th St. will take place Monday through Friday, 9:30 a.m. to 3:30 p.m.

    Traffic control flaggers and signs will guide vehicles and pedestrians safely around the project areas and there will be lane closures and revisions as crews move along the project route. The bus stop on NE 8th St will be moved 250 ft. west of its current location. Some street parking will be impacted. “No parking” signs will be placed in the areas prior to work beginning.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.





    Striping and Thermoplastic Markings Maintenance Work

    The City will be performing striping and thermoplastic maintenance work on the city’s arterials throughout the summer to refresh existing fog lines, center lines, and thermoplastic markings. Thermoplastic markings include arrows, stop bars, bike symbols, and other markings in the roadway. The arterials being targeted are shown in the map below. This type of work requires dry road pavement so dry weather days are being targeted. Drivers should expect delays and use caution.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    New School Zone Flashers on Issaquah - Pine Lake Road

    The city has installed three new school zone flashing signs on Issaquah-Pine Lake Road near Cedar Trails Elementary to alert drivers of walking students and the reduced speed of 20mph during drop off and pick up times. The exhibit below shows their locations. Drivers should slow down and use caution when these signs are flashing in the mornings and afternoons.


    Changes to SE 32nd and 244th Ave SE Intersection

    The city changed the intersection of SE 32nd and 244th Ave SE into an all-way stop control due to traffic concurrency issues. New stop signs and stop bars were placed on the approach legs of SE 32nd, in addition to the existing stop sign on 244th. This change took place the week of August 15th and advance warning message signs are in place. Drivers should slow down use caution with this new traffic control change.



    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.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    *This work will begin on April 15, 2022, and last for 4 months.

    Crews are scheduled to close the on-ramp from Redmond Way to westbound SR 520 for four months in order to build a new on-ramp. This is part of the Redmond Link Extension construction. Drivers should plan accordingly due to the ramp closure. To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

  • Road Projects for the Week of September 24 - 30

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    Westbound I-90 Lane Reduction and Full Closure - 9/22-9/26

    This is a WSDOT project.

    Travelers can expect a complete closure of westbound I-90 at Island Crest Way on Mercer Island. Contractor crews working for WSDOT will replace the original expansion joint on the east end of the westbound I-90 Homer Hadley bridge that connects Mercer Island to Seattle. Below is a map of the area of work.

    This work will entail:

    • Westbound I-90 will be reduced to one lane on the west side of Mercer Island beginning at 6:00 p.m. Thursday, 9/22 through 10:00 a.m. Friday, 9/23
    • All lanes of westbound I-90 will close. One lane of the West Mercer Way on-ramp will remain open from 10:00 a.m. Friday, 9/23 to 5:00 a.m. Monday, 9/26.

    People traveling from the Eastside to the west side of Lake Washington will need to use either I-405 or SR 520, which is a toll bridge. More information on this project can be found on WSDOT's website, linked here.


    Sidewalk Curb Ramp Reconstruction

    The City of Sammamish is working to implement its ADA Transition Plan. Sidewalk ramps in high pedestrian use areas and on streets scheduled for resurfacing next year are being reconstructed to improve accessibility. Below is more information on specific locations.

    The hours of work are 7:00 a.m. - 3:00 p.m. Due to the nature of this work, the sidewalks along the area of work will be closed and pedestrian detour routes will be provided and indicated with signage. During certain portions of this work, the road will be reduced to one lane of traffic. Reader boards are posted around areas of work to alert drivers and pedestrians. Pedestrians should expect delays and plan their routes accordingly. Drivers should use caution and expect minor delays.

    228th Avenue SE from Issaquah Pine Lake Road SE to SE 24th Street

    Work in this location will occur between August and October. The work crew will be staggering work at intersections to keep pedestrian pathways open.

    The specific areas of work are as follows:

    • Eastbound SE 24th St, concluding at Audubon Park Dr SE
    • The entrance to Discovery Elementary School
    • The intersection of 228th Ave SE and SE 24th St
    • Southbound 228th Ave SE along Pine Lake Park
    • The intersection of 228th and Issaquah-Pine Lake Rd SE

    Below is a map with the specific areas of work indicated in green.


    Klahanie Drive SE from SE Issaquah Fall City Road to 249th Avenue SE, and

    247th Place SE-246th Avenue SE-SE 43rd Place-244th Place SE from Issaquah Pine Lake Road SE to SE Klahanie Boulevard.

    Work on these streets is scheduled to last through December. The work crew will be staggering the construction to minimize impacts to pedestrian routes. Below is a map with the specific areas of work indicated in green


    East Lake Sammamish Trail South Segment B Stage 2 Construction

    This is a King County Trail Project

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 2 will begin construction in Spring 2022. All private property owners adjacent to the trail will be able to access their property during construction with limited exceptions for safety reasons. For example, access may be limited, or neighbors may experience short delays during major material unloading or wall construction along a lane. King County plans to incorporate flaggers/spotters on site on site to help pedestrians safely access their properties during daytime.

    • Project Start Point: Approximately 1,350’ south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE (STA 371+59)
    • Project End Point: Approximately 750’ south of the intersection of NE 16th Street / East Lake Sammamish Parkway SE (STA 468+00)

    The last uncompleted ELST section, the 1.9-miles from Pine Lake Creek to Inglewood Hill Road, will be closed for construction beginning in early June 2022 until December 2023.

    For additional project information, please visit the project website: www.kingcounty.gov/eastlakesammamishtrail. You may also contact the project team directly by email at ELST@kingcounty.gov or by calling the project hotline at 1-888-668-4886.


    Puget Sound Energy Natural Gas Project

    Crews from Puget Sound Energy and InfraSource will be working to replace portions of the existing underground natural gas main with new, corrosion-resistant plastic pipe.

    Gas main work in the Tree Farm Neighborhood is ongoing. Work will take place between the hours of 8:00 a.m. to 4:00 p.m.

    The gas main replacement on NE 8th St is complete. Necessary asphalt restoration began in September. Work on NE 8th St. will take place Monday through Friday, 8:00 a.m. to 4:00 p.m.

    Traffic control flaggers and signs will guide vehicles and pedestrians safely around the project areas and there will be lane closures and revisions as crews move along the project route. The bus stop on NE 8th St will be moved 250 ft. west of its current location. Some street parking will be impacted. “No parking” signs will be placed in the areas prior to work beginning.

    Drivers should expect delays and use caution. Impacted streets are NE 8th St, NE 7th Ct, 237th Pl NE, NE 6th Ct, NE 6th St, NE 4th Pl, 238th Ave NE and 239th Ave NE, Sammamish. See maps of work below for more details.





    Striping and Thermoplastic Markings Maintenance Work

    The City will be performing striping and thermoplastic maintenance work on the city’s arterials throughout the summer to refresh existing fog lines, center lines, and thermoplastic markings. Thermoplastic markings include arrows, stop bars, bike symbols, and other markings in the roadway. The arterials being targeted are shown in the map below. This type of work requires dry road pavement so dry weather days are being targeted. Drivers should expect delays and use caution.



    East Lake Sammamish Trail South Segment B Stage 1 Construction

    The King County East Lake Sammamish Trail (ELST) South Segment B Phase 1 continues with construction. There will be traffic impacts related to the closure of the gravel surface trail segment which causes the re-routing of cyclists and pedestrians to East Lake Sammamish Parkway (ELSP). Additionally, there will be construction traffic on ELSP.

    • Project Start Point: Intersection of SE 33rd / East Lake Sammamish Shore Lane Drive SE
    • Project End Point: Approximately 900' south of the intersection of SE 8th Street / East Lake Sammamish Parkway SE


    New School Zone Flashers on Issaquah - Pine Lake Road

    The city has installed three new school zone flashing signs on Issaquah-Pine Lake Road near Cedar Trails Elementary to alert drivers of walking students and the reduced speed of 20mph during drop off and pick up times. The exhibit below shows their locations. Drivers should slow down and use caution when these signs are flashing in the mornings and afternoons.


    Changes to SE 32nd and 244th Ave SE Intersection

    The city changed the intersection of SE 32nd and 244th Ave SE into an all-way stop control due to traffic concurrency issues. New stop signs and stop bars were placed on the approach legs of SE 32nd, in addition to the existing stop sign on 244th. This change took place the week of August 15th and advance warning message signs are in place. Drivers should slow down use caution with this new traffic control change.



    Notices for construction activity outside of the City of Sammamish:


    Extended overnight lane reductions and ramp closures planned on I-405 in Bellevue - September 15-18

    This is a WSDOT project.

    Crews working for the Washington State Department of Transportation (WSDOT) will excavate and replace a damaged culvert under I-405 near the 112th Avenue Southeast/Lake Washington Boulevard Southeast (Exit 9) interchange. The repair work will take place from 11:00 p.m., Thursday, Sept. 15, until 9:00 p.m., Sunday, Sept. 18. These closures will cause significant delays throughout the weekend. WSDOT encourages travelers to plan ahead, allow extra time for travel and reschedule discretionary travel if possible.

    Lane reduction and ramp closure details Over the four days of work, crews plan to excavate and replace the existing culvert underneath I-405 in three phases. The phased work schedule is:

    • 11 p.m. Thursday, Sept. 15, to 5 p.m. Friday, Sept. 16: the southbound I-405 off-ramp to Exit 9 will be closed. Southbound I-405 will be reduced to two lanes between Coal Creek Parkway Southeast and Exit 9. Drivers wishing to exit southbound I-405 will detour to the Northeast 44th Street (Exit 7) off-ramp.
    • 11 p.m. Friday, Sept. 16 to 10 p.m. Saturday, Sept. 17: all lanes of I-405 at Exit 9 will be closed. Drivers will use the Exit 9 ramps as the detour with flaggers directing traffic.
    • 11 p.m. Saturday, Sept. 17 to 9 p.m. on Sunday, Sept. 18: the Exit 9 on-ramp to northbound I-405 will be closed. All other lanes and ramps will be open.

    Detour routes available for full interstate closure Signed detour routes will be in place for the 23-hour full interstate closure. From 11 p.m. Friday, Sept. 16, to 10 p.m. Saturday, Sept. 17, travelers will use the Exit 9 ramps as the detour with flaggers directing traffic. Travelers should expect heavier-than-normal traffic along those routes during the closures. For additional information regarding this closure, visit WSDOT's website, linked here.


    Westbound I-90 Closures in September

    This is a WSDOT project.

    September will bring several major closures on westbound Interstate 90 during the second half of September, including two east of Issaquah and two on the west end of Mercer Island.

    During the closures, contractor crews working for the Washington State Department of Transportation will repave a rough section of the interstate where water is seeping onto the roadway. The closures on the west side of Mercer Island will allow crews to replace an expansion joint on the westbound I-90 Homer Hadley Bridge.

    The closures east of Issaquah on westbound I-90 will take place:

    • 9:00 p.m. Sunday, Sept. 11 to 5:00 a.m. to Thursday, Sept. 15, reduced to one right lane.
    • 9:00 p.m. Sunday, Sept. 18 5:00 a.m. to Friday, Sept. 23, reduced to one left lane.

    The Mercer Island closures on westbound I-90 will be:

    • 10:00 a.m. Friday, Sept. 16 to 5:00 a.m. Monday, Sept. 19, the West Mercer Way on-ramp, the right lane of I-90 and the bike path closed.
    • 2:00 p.m. Thursday, Sept. 22 to 10:00 a.m. Friday, Sept. 23, westbound I-90 reduced to one lane west of 76th Avenue Southeast.
    • 10:00 a.m. Friday, Sept. 23 to 5:00 a.m. Monday, Sept. 26, all lanes of westbound I-90 to the Homer Hadley Bridge closed; one lane of the West Mercer Way on-ramp open.

    For more information on these closures, please visit WSDOT's I-90 website, linked here. People who are traveling can get real-time traffic information on their mobile phone with the WSDOT traffic app and by following the WSDOT traffic Twitter feed.


    Roundabout at ELSP and SE 43rd St

    This is a City of Issaquah project.

    The City of Issaquah awarded the contract for the East Lake Sammamish Parkway (ELSP) and SE 43rd Street Roundabout Revisions project to the contractor Northwest Cascade. Construction activities requiring the closure of the roundabout were completed in August.

    The City of Issaquah does not plan on closing the intersection again. Remaining work will include some traffic control, but will occur during normal weekday hours. Drivers should expect minor delays and use caution.

    More information on this project and the Project Manager's contact information can be found on the City of Issaquah's website, linked here.


    Road maintenance on 244th Ave NE near Redmond Fall City Rd, (SR-202)

    This is a King County Local Services project.

    King County Road Services Division is prioritizing 244th Ave NE near SR-202 to receive snow and ice pre-treatment. 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 2023. 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 can be found, linked here.


    Downtown Redmond Link Extension (DRLE) - Sound Transit work

    This is a City of Redmond and Sound Transit project.

    *This work will begin on April 15, 2022, and last for 4 months.

    Crews are scheduled to close the on-ramp from Redmond Way to westbound SR 520 for four months in order to build a new on-ramp. This is part of the Redmond Link Extension construction. Drivers should plan accordingly due to the ramp closure. To stay up-to-date and learn more about this project, please visit the DRLE tab in Cone Zone.

Page last updated: 30 Nov 2022, 11:18 AM