NE Multnomah and NE 19th Sewer Project

Sewer and Stormwater
Environmental Services is designing a project to upsize 223 feet of sewer pipe, replace four public sewer connections to private property, and add one new maintenance hole in the Sullivan's Gulch neighborhood. The project will reduce the possibility of sewage releases to buildings and streets.
Construction is expected to begin June 2024 and take up to 5 months to complete.
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Project Area

The project is located on NE Multnomah Street between NE 17th and 19th avenues.


Project design is nearing completion. Construction is scheduled to begin in June 2024 and should take about five months to finish.

What's Happening Now

Over the next few months, crew will be in the project area conducting various investigations to collect information that will help determine what pipes need to be repaired and what construction methods should be used. Activities may include cleaning and inspecting sewer pipes and maintenance access holes, locating underground utilities and marking them with paint or small flags, surveying the land and taking various measurements, and drilling holes in the street to collect soil and pavement samples. See Pre-Construction Activities to learn more.  

Some investigative activities will require restricting parking and closing travel lanes. Information gathered will help determine the repair locations, construction methods, and how to minimize construction impacts on residents and businesses.  

What to Expect Before Construction

Tree Removal at NE Corner of Multnomah and 19th Avenue

This project will build two new ADA ramps on the northwest and northeast corners of NE Multnomah Street and NE 19th Avenue that will require removing a large horse chestnut tree on the northeast corner. The BES project team and Portland Urban Forestry determined the northeast ramp cannot be built without significantly impacting the root system of the tree, making it a potential hazard. In addition, the tree is considered in poor health and is on Portland’s nuisance tree list.

Tree Trimming on Multnomah between 17th and 19th Avenues

To accommodate large equipment needed to complete this project, certified arborists will supervise trimming of street trees and some private trees in the project area. The trimming will remove low branches that are overhanging the street to reduce the possibility of large equipment damaging trees and to help ensure public safety. Limbs over the sidewalk will not be trimmed.

Other Pre-Construction Activities: Before construction, you might also see crews surveying, marking utilities, relocating utilities, and bringing equipment and supplies to the project area. Learn more about these activities online by visiting Pre-Construction Activities

What to Expect During Construction

The City’s contractor is using open trench excavation. Open trench excavation consists of digging down to and exposing the existing pipe, removing the existing pipe or repair a section of it, installing a new pipe or a section of new pipe, backfilling the trench, and apply a temporary asphalt patch.  Permanant trench paving will occur after construction is complete. 

Construction creates noise, vibration, and dust and disrupts normal neighborhood activity. Learn more about what to expect during construction online by visiting Construction Impacts

Pavement Restoration

In sewer and stormwater construction projects where crews dig into city streets, Environmental Services is required to follow specifications set by the Portland Bureau of Transportation (PBOT), who owns the streets and manages the public rights-of-way. PBOT determines what pavement restoration a project must do and provides direction that meets the intent of the City’s Pavement Restoration Standard Drawings for Local Streets or Busy Streets.

We Want to Hear from You

Environmental Services will inform residents and businesses about project activities and respond to questions and concerns in a timely manner. We encourage you to:

  • Visit the project webpage at NE Multnomah and NE 19th Sewer Project.
  • Sign up to receive email or text message updates. You can also sign up to receive information on other projects and topics.
  • Contact Matt Gough with questions or comments by phone at 503-823-5352 or email Please be sure to include your name, property address, and project name (Multnomah and 19th) in your voicemail and email so we can provide you more details about what to expect in front of your property.
  • 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.

Sign Up for Email Updates

Sign up for periodic email or text message updates 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.


This project will help protect the health of the Williamette River Watershed.