September 30, 2014
Environmental Services is repairing approximately 40,000 feet (7.5 miles) of public sewer lines in your neighborhood that are between 60 and 100 years old and failing due to age. Repairing these pipes will help protect the public and the environment by reducing the possibility of sewage releases to homes, businesses and streets.
Current Construction Activities
Three construction crews are working on sewer and lateral pipe repairs in the area. The following is a schedule of current and upcoming work. Please be aware that this schedule is subject to change due to conditions underground, weather, traffic impacts, subcontractor schedules and availability of materials.
NE Tillamook from NE 60th to 62nd and NE Hancock from 60th to 62nd
- Beginning as early Monday, September 29 (about 4:00 a.m.), construction crews will install bypass pipes (temporary above ground pipes) along the roadway for this one-day repair of manholes. Flaggers will assist motorists in the work zone and through traffic will be restricted on some streets.
NE 62nd, Thompson to Hancock
- Cured-in-place-pipe lining is complete at this location.
- The contractor will remove most of the equipment and piping along the park this weekend.
NE 62nd at Thompson – Manhole construction
- Work crews will repair a manhole at the intersection of NE 62nd and Thompson on Saturday, September 27. Additional work and the pipe repair along NE Thompson between 62nd and 61st will begin the week of September 29.
Other Active Work Areas
Crews are also repairing sewers at:
- NE 58th Avenue (between Sacramento and Alameda streets)
- NE 58th Avenue (between Halsey and Thompson streets)
- NE 59th Avenue (between Broadway and Thompson streets)
Upcoming Work Areas
Sewer repairs will begin soon at:
- NE 61st Avenue between NE Sacramento and NE Stanton streets
- NE 62nd Avenue between NE Brazee Street and Sandy Boulevard
What to Expect During Cured-in-Place Pipe Lining
- Construction crews access sewer pipes through manholes in the streets.
- You may notice an odor during the pipe lining process but it will dissipate quickly. To help reduce odors, run water in all sinks and basins to fill P-traps and completely cover floor drains with a wet towel or a zip bag filled with water. Keep in mind that schedules are always subject to changes due to weather, supply availability, or other issues in the field.
What to Expect During Construction
- Construction creates noise, vibration and dust and disrupts normal neighborhood activity.
- Expect traffic delays. Traffic control signs are set up and flaggers may direct traffic on higher-volume streets. You may see barricades and orange signs reading “ROAD CLOSED to Thru Traffic – Local Access Only.” These signs are intended to reduce overall traffic going through the area while construction is underway but anyone who lives in or needs to conduct business within the construction zone will be allowed access.
- On-street parking in or near active work areas is prohibited during construction hours. Please plan to move your vehicle by 7:00 a.m.
- Equipment and materials may be stored on nearby streets overnight.
- There may be periods of inactivity between construction phases.
- A city inspector is on-site during work hours and may be able to assist you with construction concerns. Inspectors typically wear a hard hat and a green City of Portland safety vest.
- Please stay clear of all construction activities and keep children and pets out of construction areas.
- You should receive a doorhanger notice a few days before repair work starts on your street. You may notice pre-construction activities like survey or sewer inspections in advance.
Sewer Construction Methods
The city will use a combination of open trench construction and cured-in-place-pipe lining (CIPP). The contractor may use more than one construction method in some areas. For example, the contractor may use CIPP on the main public sewer pipe and open trench construction to repair or replace laterals that connect private sewers from the curb to the public sewer in the street.
There are several phases of open trench construction:
- Saw cut pavement along the width of the trench
- Remove pavement and existing material
- Install public sewer pipe in the street
- Backfill trench with sand or gravel
- Replace laterals that connect private sewers to the system (from the curb to the street)
- Restore surface temporarily with an asphalt patch
- Complete final paving
- Restore other areas disturbed by construction, such as sidewalks, driveway aprons and planting strips
Cured-in-place-pipe lining (CIPP) doesn’t require digging a trench. Work crews access the sewer from manholes to insert a flexible liner inside the old pipe. 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. People who live and work near a CIPP repair project 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. The odor dissipates quickly once the installation process is complete. The amount of airborne styrene produced is not a human health risk. Get more information about CIPP construction.
For More Information
Contact Kristen Kibler with JLA Public Involvement at 503-235-5881, extension 106, or email firstname.lastname@example.org if you have concerns, such as maintaining driveway access, business operations, or medical deliveries, during construction.
Email Kristen with "Rose City Park" in the subject line to receive project updates by email. During construction, we will be sending regular email updates to keep you posted about the schedule, construction activities, possible traffic detours and delays, parking restrictions and other impacts.
Thank you in advance for your cooperation during this project. Please let us know if you have concerns such as business operations, disability issues, or medical or business deliveries. As always, we’ll strive to provide quick response to your concerns, minimal disruption near your residence or business, and open and clear communication with you throughout the project.