August 21, 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 around Rose City Park School at 2334 NE 57th Avenue. There will be work in this area through August so that school buses will have access around the building when classes resume in September. Construction crews are working on open trench repairs and cured-in-place-pipe lining on these streets this month.
South of the school
- NE 58th Avenue (between Halsey and Thompson streets)
- NE 59th Avenue (between Broadway and Thompson streets)
North of the school
- NE Sacramento (between 58th and 61st avenues)
- NE 59th Avenue (between Sacramento and Alameda streets)
- NE 58th Avenue (between Sacramento and Alameda streets) – Crews will return to this street at the start of September after completing pipe lining in other streets. The repairs in this street are full pipe replacements and require no lining.
Cured-in-place pipe lining will occur the week of August 25. Residents may notice a chemical odor and will be asked to limit water use for the day. Residents will receive a construction notice a day or two in advance of pipe lining.
What to Expect During Cured-in-Place Pipe Lining
- Construction crews do most of the sewer lining work through manholes in the streets.
- Preparation and restoration will take a couple of days to complete but the pipe lining process should only take one day at each location.
- You may notice an odor during the pipe lining process but it will dissipate quickly. To help reduce the odors run water in all sinks and basins to make sure p-traps are filled, and cover floor drains with a wet towel or a zip bag filled with water. Be sure to cover the drain completely.
- Learn more about the cured-in-place-pipe lining process.
Keep in mind that schedules are always subject to changes due to weather, supply availability, or other issues in the field.
The map below shows the location of pipes we will repair or replace. They are mostly in the Rose City Park neighborhood, with some blocks in the Madison South and Roseway neighborhoods. There may be temporary traffic controls, construction signage or increased traffic volume and parking on nearby streets.
What to Expect During Construction
- Typical work hours are 7:00 a.m. to 6:00 p.m. Monday through Friday, but the contractor may schedule work during the same hours on Saturdays.
- Construction will create noise, vibration and dust and will disrupt normal neighborhood activity.
- Expect traffic delays. Traffic control signs will be 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 will be on-site during work hours and may be able to assist you with construction concerns. Inspectors typically wear a green safety vest with “City of Portland” across the back and a hard hat.
- 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 actual 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.
Open trench installation is done in phases:
- 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. For more information about the CIPP construction method and the chemical styrene, click here.
For More Information
Contact Kristen Kibler with JLA Public Involvement at 503-235-5881, extension 106, 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 schedulem, 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.