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Environmental Services is constructing a project to replace 800 feet of large-diameter brick sewer pipes located in Highway 26 south of Washington Park. These repairs are necessary to maintain reliable sewer service and protect public health and the environment.
Schedule
To minimize traffic delays, crews will work around the clock for two weekends in September. Each weekend, work will begin at 9:00 p.m. on Friday evening and continue all hours, day and night, ending Monday morning by 5:00 a.m. Work is currently scheduled for the following weekends:
- Friday, September 20 - Monday, September 23
- Friday, September 27 - Monday, September 30
Environmental Services has been granted a noise variance to work at night and on weekends. We are working closely with the Oregon Department of Transportation (ODOT) to meet traffic safety requirements. More information on night work can be found at the end of this email.
Traffic Impacts
Highway 26 and connecting on and off ramps at exit 72 will remain open during all construction activities. However, one eastbound and one westbound lane will be closed near pipe work locations (see map) to safely accommodate crews and equipment during sewer pipe inspections and repair work. This work is expected to cause significant traffic delays. The traveling public is advised to use an alternate route and take public transit where possible.
Project Area
The project will replace sewer pipes in Highway 26 south of Washington Park and north of the Hoyt Arboretum near exit 72.
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 Simplified map for the Tanner Trunk Sewer Project. Please note - this map is not to scale.
Night Work Background
To reduce impacts to residents, businesses, and the traveling public, Environmental Services has been granted a noise variance to work both day and night, all hours, to complete the project as fast as possible. Working all hours during the day and night will reduce the overall duration of the project and ensure work that requires dry weather can be completed this summer when flows in the Tanner Trunk are low.
If you have a concern during night work hours, you can call the Environmental Services noise hotline at 503-823-1338. You can also contact the Portland Noise Program at 503-823-7350 or noise@portlandoregon.gov, or complete their online noise complaint form.
Construction Method
Crews will make repairs using a trenchless sewer construction method called Cured-in-Place-Pipe Lining (CIPP). CIPP is a trenchless sewer construction method that requires little or no digging. CIPP involves inserting a flexible liner inside the existing pipe, inflating the liner, and exposing it to heat or ultraviolet light to dry and harden the liner inside the pipe. The liner forms a smooth surface inside the existing pipe, restores it to near-new condition.
Keeping You Informed
Environmental Services will inform residents and businesses about project activities and respond to questions and concerns in a timely manner. The following resources will help you stay informed and report concerns:
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Webpage: For more information, visit portland.gov/bes/TannerTrunk
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Questions? Contact Matt Gough at matthew.gough@portlandoregon.gov or 503-823-5352.
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Sewer Emergency: In the event of a sewer backup or basement flooding, call the Maintenance hotline immediately at 503-823-1700. It is staffed all hours and all days.
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The City of Portland is committed to providing meaningful access. To request translation,
interpretation, modifications, accommodations, or other auxiliary aids or services,
contact 503-823-7740, Relay: 711.
Traducción e Interpretación | Biên Dịch và Thông Dịch | अनुवादन तथा व्याख्या
口笔译服务 | Устный и письменный перевод | Turjumaad iyo Fasiraad
Письмовий і усний переклад | Traducere și interpretariat | Chiaku me Awewen Kapas
Translation and Interpretation: 503-823-7740
City of Portland Bureau of Environmental Services | 1120 SW Fifth Ave. | Suite 613 | Portland, OR 97204
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