Citywide Sump Repair and Replacement Projects

Sewer and Stormwater
Environmental Services will construct a project that removes 22 aging sumps throughout the City and replaces them with 17 new sumps and 10 new sedimentation manholes. This work will help control stormwater runoff and sewer backups.
Construction is scheduled to begin Monday, March 27 and be completed by September 2023.
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This new infrastructure will help control stormwater runoff during heavy rain events, improve water quality, and help prevent basement and sewer backups.

Construction Schedule

Construction will begin on Monday, March 27 at the intersection of SE 98th and SE Sherman Street. Crews will begin in SE Portland before moving to NE Portland, and then finally to N Portland over the course of the project.

Week of March 27:

  • Installation of tree protection and erosion control throughout the project area (see map below for locations).

Week of April 3:

  • Deliver equipment and materials to different areas of project in preparation for construction.
  • Installation of stormwater sewer line at SE 98th and Sherman.
  • Installation of sump and sedimentation maintenance holes at SE 98th and Sherman and SE 99th and Stark.

Week of April 10:

  • Installation of stormwater line at SE 99th and Stark
  • Installation of sump and sedimentation maintenance holes at SE 99th and Stark.
  • Installation of stormwater inlet at SE 99th and Stark.

Continue to check the project webpage for updates to the construction schedule.

Project Area

The project boundary is in multiple locations.

What are Sumps and Sedimentation Maintenance Holes?

A sump maintenance hole (sump) is a large, concrete cylinder installed under a street and that is connected to a storm drain and a separate tank, called a sedimentation maintenance hole, that filters out garbage and pollutants.

Environmental Services owns, operates, and maintains 8,625 sumps and 6,352 associated sedimentation maintenance holes all over the city.

For more information about sump maintenance holes and other ways in which BES manages stormwater, visit the How We Manage Stormwater webpage.

Infographic of Sedimentation and Sump Maintenance Holes

What's Happening Now

Night work to occur during construction - detailed dates and times to be announce prior to construction.

To reduce public impacts and complete the work as quickly as possible, Environmental Services is proposing to work both days and nights at three locations. Nighttime hours will be between 6 p.m. and 7 a.m. Below are the locations of the proposed night work and the proposed amount of nighttime work:

  • Intersection of SE 88th Avenue and SE Washington Street – Two continuous nights to complete work
  • Between SE Stark and SE 99th Avenue – Seven continuous nights to complete work

We Want to Hear from You

We would like to hear from you about special events, school activities, and community services in the neighborhood that you think may be impacted by this project. Also, we want to know if you have any concerns related to business operations, disability or mobility issues, medical or business deliveries. Your input will help us minimize construction impacts to your neighborhood. 

Sewer Emergency: In the event of a sewer backup or basement flooding, call the Maintenance hotline immediately at 503-823-1700. It is staffed all hours and all days, 24/7.

Construction Methods

The contractor will require excavating trenches, accessing manholes, digging pits to complete sump repairs and replacements. 

  • Open Trench Excavation: The contractor excavates a trench for sump repairs and replacements, and then fills in the trench and restores the disturbed pavement. 

What to Expect

You can expect the following activities and impacts during construction: 

A Safe Work Site: We want you to be safe around the work site. Please keep children, pets, bikes, cars, and trucks away from the tools, machines, supplies, and construction workers. 

Noise, Vibration, and Dust: Construction creates noise, vibration, and dust and disrupts normal neighborhood activity. 

Traffic Delays: The work will slow down traffic in your neighborhood. Please read the traffic signs and follow directions from the workers with flags. 

Access to Your Home or Business: You will be able to go to your home or business, but you may not be able to park as close as you would like. We will try to make sure driveways and parking lot entrances stay open. Crew members can help you safely enter or exit your driveway or business parking lot.   

Parking Restrictions: We want you to be safe, so you might not be able to park your car next to work spaces, equipment, or materials. If crews are working directly in front of your home or a business, you may need to park in another place. 

Equipment Storage: Sometimes we will leave tools, machines, and supplies on your street overnight.  

Maintained Service: You can still use sewer, water, and other services while we work on your street. 

Work Hours: Work hours are 7 a.m. to 6 p.m., Monday through Friday. Sometimes we work on Saturdays from 7 a.m. to 6 p.m. 

Schedule Changes and Inactivity: Work schedules can change for many reasons like weather, traffic, and problems with tools, machines, or supplies. Sometimes we need to stop between different types of work and start again later. 

Sign Up for Updates

Environmental Services is committed to keeping residents and businesses informed. Sign up for regular project updates for the SW Patrick Place Sewer Project through our free GovDelivery subscription service. These updates are the best way to stay informed about what’s happening and what to expect. You can also sign up for bulletins on other projects and topics.