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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

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N Marine Drive Sewer Repair Project

Updated January 2, 2019Button. Click to sign up for email updates

Environmental Services plans to begin construction in late January to repair 430 feet of public sewer pipes and one manhole in North Marine Drive between N Portland Road and N Force Avenue. The pipes and concrete manhole along the southern edge of Marine Drive are severely deteriorated from sanitary sewer flows and sewer gases. This project will line the pipes and install a corrosion-proof layer within the manhole. These improvements will help protect public health, water quality, and the Columbia Slough Watershed.


The map below illustrates where sewer repairs will be constructed. The 430 feet of sewer pipe and manhole are located along the southern edge of Marine Drive.

Project map


Construction is anticipated to begin in late January. Once construction begins, work is expected to take about one month to complete.

North Marine Drive is one of three locations where the city’s contractor will be working. The others are NE Argyle Drive at NE 11th Avenue and N Interstate Place at N Argyle Street. The contractor plans to work on Marine Drive after completing the other two locations.

Below is the general schedule for work at the N Marine Drive location:

  • January 16-18 – Install an 8-inch hot tap for the sewer bypass system
  • January 21 – Remove the inside drop between the manhole and the sewer pipe
  • February 13-27 – Set up and keep in service the sewer bypass/flow diversion system
  • February 13-14 (overnight work) – Line the sewer pipe and cure the liner
  • February 15 – Conduct post video inspection of the sewer pipe
  • February 26-27 – Repair the manhole
  • February 27 – Remove the sewer bypass/flow diversion system  
  • February 28 – Replace the manhole steps
  • March 1 – Install the inside drop between the manhole and the sewer pipe

Note that this schedule could change depending on weather, subcontractor schedules, availability of materials, and other factors.

James W. Fowler Co., the contractor for this project, will provide notice in advance of construction.

Work Hours

In general, work will occur from 7 a.m. to 6 p.m. Monday through Friday, and the same hours on Saturday as needed. The sewer pipe repairs will also require one night of work to line the sewer pipes in N Marine Drive and harden the lining. The pipe lining work will occur from 6 p.m. to 7 a.m.

Night Work

The Portland Noise Office granted Environmental Services a noise variance to work 24/7 for approximately one day and night to line the sewer pipes. The pipe lining process is a minimum 24-hour process and cannot be stopped once started. The specific dates for this day and night have not yet been determined.

Portland noise code allows construction from 7 a.m. to 6 p.m. Monday through Saturday. Work after 6 p.m. and before 7 a.m. and all hours on Sundays requires a noise variance from the Portland Noise Office. Because construction crews will work past 6 p.m. one day and night to line the pipes and harden the lining, Environmental Services applied for and was granted a noise variance.

Equipment that generates noise will include a water jet truck, sewer cleaning truck, air compressor, sewer bypass pumps, generators, front end loader, and crane. Night work will also require lights.

Construction Methods

To repair the sewer pipes, the city will employ a method called Cured-in-Place-Pipe Lining (CIPP). Work crews access the sewer from manholes to insert a flexible liner inside the old pipe. Ultraviolet rays, hot water, or steam inflates and cures the liner, which gradually hardens to form a rigid, smooth surface that seals cracks and restores the pipe to near-new condition. It is generally a three-day process to set up the bypass service, line the pipe, and reinstate the sewer connections to buildings.

People who live and work near a CIPP repair project can sometimes smell a chemical odor during the pipe-lining work. The odor is from the chemical styrene, which is in the resin liner installed inside the pipe. While unpleasant for some, the amount of airborne styrene generated by the CIPP process is not a health risk at the levels observed by the City of Portland and tested and monitored by an independent industrial hygienist. The odor dissipates quickly once the process is complete. Click here for more details about CIPP.

Crews will repair the manhole using a structural fiberglass core layer that will form a smooth, durable, and corrosion resistant wall in the manhole. This work will be completed during regular daytime hours from 7 a.m. to 6 p.m. Monday through Friday, and Saturday if needed.

Traffic Controls

This project will require temporary traffic diversion during construction. Access to driveways and properties will be provided at all times, although there may be delays. The goal will be to maintain at least one traffic lane in each direction during work hours and a two-way left turn lane. The sidewalk along the south side of Marine Drive will always be open. If it is necessary for the city's contractor to employ flaggers, pedestrians may be stopped for up to five (5) minutes when necessary for safety.

For More Information

If you would like more information about the project or have questions and concerns you’d like to discuss, please call or email:

Cheryl Kuck
Community Outreach
Phone: 503-823-7898
Send an email

If you have a question or concern, please include your name, business name, property address, and project name (Marine Drive) in your email and voicemail. Also, please write "Marine Drive" in the subject line of your email. Click SIGN UP to sign up for periodic email updates.

Project Overview

Including the project description, map and schedule

Community Outreach

Check out current and previous communications about the project