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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

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

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Kenton Sewer Repair Project

Kenton Sewer Repair Project Construction Update: April 21, 2015


  • The contractor has completed pipe bursting and most open trench construction on the project, and will next begin work on the Cured-in-Place Pipe-Lining (CIPP) phase. This will require videotaping several sewer main lines and branches over the next several weeks. For more information on construction methods, go to
  • Bike lanes on Denver will be closed at McClellan while concrete sets around the manholes. Please be aware of detour signs and bikes in the roadway during this time. Pedestrian walkways are also likely to be affected during this closure. Please follow signs and stay out of designated work areas.
  • Work during the next two weeks will be focused on street paving. During this period, a number of detours and traffic controls will be in place around Kenton Park and the Business District. Detours and road closures may shift between streets on any given day. Please be aware of detour and road closure signs as well as flaggers in the roadway.


Below is the anticipated construction schedule for the next two weeks. This schedule is subject to change due to a variety of factors, including underground conditions, weather, subcontractor schedules and availability of materials. As the contractor completes construction on each street, work crews apply a temporary asphalt patch. They will return at a later date to apply permanent paving.

As weather and availability of work crews and equipment allow, crews are beginning to do final paving on streets where sewer repairs are complete. Due to these circumstances, paving work may occur that is not part of this notice and some scheduled final paving may be delayed.

Week of April 20th:

  • N McClellan (between Denver and Brandon) – Final street paving – McClellan will be local access only during this period and there will be no on street parking.
  • N Schofield (between Denver and Brandon) – Final street paving – Schofield will be local access only during this period. There will also be no on street parking on the day of paving. No parking signs will be posted the day before paving. Please have cars off the street by 7 a.m.
  • N Kilpatrick (between Brandon and Delaware) – Street restoration in preparation for final paving - crews will be restoring the manhole structure near Delaware. Through traffic will be permitted, but only one lane of traffic will be open. Please be aware of flaggers.

Week of April 27th:

  • N Kilpatrick (between Brandon and Delaware) – Final street paving – Kilpatrick will be local access only during the beginning of this week and on street parking will      be restricted. TriMet will utilize the Argyle and Brandon detour route during the paving period.
  • N Farragut (between Montana and Minnesota) – Final street paving – Farragut will be local access only during this period and there will be no on street parking.
  • N Montana (between McClellan and Kilpatrick) – Final street paving – Montana will be local access only during paving

Construction Methods

The city's contractor is using a combination of open trench construction, cured-in-place-pipe lining, and pipe bursting. Go to for more information about sewer construction methods.

Night Work at Several Locations

The Portland Noise Control Office granted Environmental Services a noise variance for nighttime construction at several locations in this project (see map below).

A city inspector will be on-site during this night work. To report concerns during night work, please call the on-site hotline at 503-823-8458. You may also call the Portland Noise Control Office at 503-823-7350 or email

Cured-in-place Pipe Lining Locations

The contractor will use cured-in-place pipe lining (CIPP) to repair several sewers. Work crews may install lining at night at some locations because of the size of the pipe. Work at each location should take no more than a few days. People who live and work near a CIPP repair project can sometimes smell a chemical odor during pipe-lining. The odor is from the chemical styrene, which is in the resin liner installed inside the pipe. The odor dissipates quickly once the installation process is complete. The amount of airborne styrene the repair process produces is not a human health risk. Go to for more information about CIPP construction.

Project Area Map

The map below shows the location of pipes we will repair or replace. There may be temporary traffic controls, construction signage or increased traffic volume and parking on nearby streets.

Kenton Sewer Repair Map

What to Expect during Construction

  • Construction creates noise, vibration and dust and disrupts normal neighborhood activity.
  • Typical construction hours will be 7:00 a.m. to 6:00 p.m. Monday through Friday. If needed, the contractor may work the same hours on Saturday. The contractor will work at night to complete the cured-in-place pipe lining on larger pipes in several locations (see map). One location will require nighttime work to complete the open trench sewer repair. To minimize daytime traffic disturbance on N Interstate Avenue, sewer construction in the intersection of N Russet Street and N Interstate Avenue will require night work for no more than five days. We will notify residents in advance of night work.
  • Please stay clear of all construction activities and keep children, pets and vehicles out of construction areas.
  • On-street parking in or near the work area may be limited. Please observe no parking signs.
  • Equipment and materials may be stored on nearby streets overnight.
  • The contractor will maintain local access on streets, but you should expect delays. In some cases, construction activities may impact normal use of your driveway.
  • Sewer construction generally occurs in the street. However, in a few areas the contractor will have to cut into sidewalks and driveway edges then restore the areas. Construction may also affect the planting strip, the area between the curb and sidewalk. We will notify property owners where this may occur.
  • During construction, the city’s contractor will use by-pass pumps to maintain sewer service. If a short, temporary sewer service shut-off is necessary to relocate a line, the contractor will notify property owners in advance.
  • Construction near an individual property could last a few weeks. This may seem longer where the work extends on the same street for a block or more. Sewer construction has many phases, and there may be periods of inactivity between construction phases at each site.
  • A city inspector will be on-site during work hours and may be able to assist you with concerns. Inspectors wear a hard hat and a safety vest with “City of Portland” on the back.

For More Information

To report concerns during night work, please call the on-site hotline at 503-823-8458. You may also call Portland Noise Control Office at 503-823-7350 or email If you have other questions about the project, contact Andrew Yaden at 503-329-2693 or  To receive regular email updates about this project, please send an email to Andrew with “Kenton” in the subject line.