On Monday, November 10, crews will repair the sewer pipe on M Street Northeast, between 14th and 16th Streets Northeast. We will reline the existing pipes using cured-in-place pipe (CIPP) technology. We chose the CIPP method because it allows us to reline the sewer pipe without excavating the road.
We ask that residents living on M Street Northeast, between 14th and 16th Streets Northeast, as well as on the side street of 16th Street up to I Street Northeast, limit their water usage during this work. This will help the construction crew connect the residents’ sewer lines with the M Street Trunk sewer pipe.
It is important that residents reduce water use to allow the sewer lining to harden. During this work, please avoid doing laundry, running your dishwasher, or engaging in any other tasks that require high water usage. You will be able to flush your toilet and use your sinks.
See the map on the back for more details. We have also created an interactive construction map, which you can find by visiting: kingcounty.gov/MStreetTrunkRehab. This map will show active construction updates for Zones 18, 24, and part of Zone 30 during 2025.
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Please limit water usage from 7 am on Monday, November 10, to 7 am on Tuesday, November 11.
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You will be able to use your sinks and toilets. Avoid doing laundry, taking multiple showers, using the dishwasher, and any other tasks that require high water usage.
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There will be traffic detours, equipment staging, and closures of travel lanes and sidewalks.
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Noise and odors from the pumping system and construction are typical of sewer pipe rehabilitation projects.
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Street parking will be restricted in posted areas.
Please watch for equipment and signs in the area, travel slowly, and follow directions from flaggers in the work zone.
The King County Wastewater Treatment Division is repairing approximately 2.6 miles of old concrete sewer pipe, ranging in size from 18 to 36 inches wide, in Auburn. We will also fix 45 maintenance holes and over 100 side sewer connections to homes and businesses. Rehabilitating the M Street Trunk will help preserve aging infrastructure and ensure the reliability of our regional wastewater system.
In September through the fall of 2025, crews will repair Zones 18, 24, and some parts of Zone 30 on M Street Northeast, starting from the intersection on 14th Street Northeast to near 22nd Street Northeast. In summer 2026, crews will finish construction on the remaining part of Zone 30 and all of Zone 36.
Construction is disruptive. King County’s goal is to complete construction efficiently to minimize disruptions to the community.
We are committed to keeping you informed throughout this project. We will provide advance notice of construction activities through mail, email, text messages, web bulletins, and project flyers. If you are hosting a community event, we can set up a table, provide materials, and answer questions. Please contact the project team if you are interested in having us attend!
To stay informed about the project and the active construction site, please visit our project webpage at kingcounty.gov/MStreetTrunkRehab. If you have questions or concerns, feel free to email: MStTrunkrepair@kingcounty.gov or call 206-263-9878. Please note this is the M Street Trunk Rehabilitation Project hotline. If there is an emergency, please dial 911. This phone line is for incoming calls only. We will never call you by this number. If you receive a call claiming to be from this number, please be aware it may be a scam.
We offer interpretation services at no cost.
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