Skip to Main Content View Text-Only

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

More Contact Info

Lower Powell Green Street and Sewer Repair Project

Construction Starts in fall 2015

Environmental Services will replace and repair 4,500 feet of sewer pipe that is over 100 years old and in poor condition, construct 22 green street facilities and plant 11 trees to absorb rain and reduce stormwater runoff. The project will keep about 1.6 million gallons of stormwater out of sewers annually, increase sewer system capacity and reduce the risk of basement backups. This project is part of the Tabor to the River Program, which combines green infrastructure with pipe repair to save Portland sewer ratepayers more than $60 million dollars.

Night Work

Due to high traffic volume during the day, Environmental Services applied for a variance from the Portland Noise Office to allow overnight construction on several streets within the project area (see map below).  After review by the Noise Review Board the variance was granted with special conditions to minimize impact on nearby residents.  The map below shows the locations of night work. All other parts of the project will be during daytime construction hours.

This map is not to scale and is meant to show the proposed work at the general location. 

Lower Powell Green Street project map

Go to for more information about the Noise Office and requirements for a noise variance.

Night Construction Methods, Locations, and Estimated Durations

The primary construction method that will be used at night is open trench excavation that includes the use of pavement saw cutters, whisper bypass pumps, generators, lights, dump trucks, front end loaders, track hoes, cranes, and pavement rollers. Below are the locations and estimated durations of open trench construction at night. 

  • SE 8th Avenue (Powell to Woodward) – open trench construction up to 22 nights
  • SE 9th Avenue (at Woodward) – open trench construction up to 18 nights
  • SE Milwaukie Avenue (at Brooklyn Street) – open trench construction up to 24 nights
  • SE Powell Boulevard (at 11th Avenue) –  open trench construction up to 4 nights
  • SE Powell (13th Place and 14th Avenue) –  open trench construction from 77 nights
  • SE Holgate (at 25th Avenue) – open trench construction up to 14 nights

Cured in place pipe (CIPP) lining will also be used in two areas and includes the use of whisper bypass pumps, generators, lights, dump trucks, front end loaders.

  • SE Milwaukie Avenue (Powell to Woodward) – prepare area and perform CIPP up to 4 nights
  • SE Powell (at 14th Avenue) – prepare area and perform CIPP up to 4 nights

Louder tasks will be completed before midnight when possible. Construction hours and duration of night construction are tentative and subject to change. More information about construction methods can be found online at     

Email Updates

To receive the most timely updates, which are especially useful during construction, please add your name to the project email list by emailing your name to Matt Gough with “Powell” in the subject line. If you already receive emails on this project you don’t need to sign up again.

For More Information

Contact Matt Gough at 503-823-5352.