North Jantzen Avenue water main construction

Water System Improvement Construction
Under Construction
We will replace approximately 2,200 feet of water main (pipe) with earthquake-resilient pipe. We will also replace five existing fire hydrants and install one new fire hydrant. This project will bring existing water services and backflow devices at several properties up to current City code.
Portland Water Bureau construction crews at work
Winter 2022 to Summer 2024
On this Page
This image is a map of planned construction for this project. Construction will start by North Pavilion Avenue and continue along North Jantzen Avenue toward Jantzen Beach Moorage. Construction will end on private property just North of Jantzen Beach Moorage.

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Project overview

Last updated July 18, 2024

We are replacing 2,200 feet of aging pipe with earthquake-resistant pipe, installing backflow devices, replacing five existing fire hydrants and adding one hydrant to the south side of Jantzen Beach. Construction began in December 2023 and will continue through July 2024.

  • Make the water system more resilient in an earthquake
  • Protect the water system from contaminants from backflow
  • Improve water flow and supply to fight fires

What's happening now

  • As a notice to the community, some nonconforming hose bibs in the area were connected to the old water lines and will be removed. These hose bibs will not be replaced.
  • Cleaning up the project area to prepare for paving
  • Small paving projects
  • Landscape cleanup
  • Leveling work areas

This cleanup may lead to minor traffic impacts like briefly pausing traffic in the area, asking for assistance to move cars, or blocking off work areas. 

What's happening next

  • Final paving for the remaining areas is scheduled for the week of July 15th.
  • This schedule is subject to change based on the progress of work on the jobsite over the next few weeks and the availability of the paving crew. 

What to expect

  • Traffic patterns in the area of excavation will change.
  • Resident and visitor vehicles may have to move to accommodate the work. 
  • Work hours are from 7 a.m. to 6 p.m., Monday through Friday.
  • During construction hours, you can expect noise from saws, excavators, dump trucks, concrete pump trucks, and generators.
  • Crews will work to mitigate any traffic obstructions on North Jantzen Avenue. Any road closures or parking limitations will be communicated to residents.
  • Gate access for crews during construction hours has been approved. Expect to see crews on or around private property.
  • Inclement weather may alter the construction timeline and activities.


North Jantzen Avenue from Pavilion Avenue west to the dead end. Some work will also take place to the north of the dead end on private property.


Fixing aging pipes

The water mains of a certain age and material in the area have a history of leaks and breaks that need to be replaced. The pipes were made during a time when people didn't know about the danger of using the asbestos in the coating around the outside of the pipe. Even though asbestos can't get into the drinking water, it poses a hazard to our crews when they make repairs on the outside of the pipe. Crews will be taking necessary precautions when connecting to the existing system and disposing of existing pipe materials. 

Helping pipes endure ground movement

The earthquake-resistant ductile iron pipe we're installing will be safer to maintain. It will also make the system more seismically resilient in case of an earthquake.

Preparing to fight fires

New fire hydrants will improve firefighters' access to water and help the bureau continue to meet state fire codes.

Protecting against contamination

In addition to the leaking main, several water services in the area lack backflow devices. These devices are required by law to keep our water supply safe from contaminants. We will install backflow devices on services that need them to bring them up to City code. This will make sure your water stays clean even if there is an unexpected reverse of water flow. Learn more about backflow.

Upgrading our maps for future work

Last but not least, replacing the main will help us locate water mains and services so we can maintain and repair them more efficiently in the future.

What to do if you are experiencing water disruptions or changes?

The Portland Water Bureau’s mission is to serve excellent water every minute of every day. If that isn’t happening, we want to know about it!

Experiencing a water emergency?

Is there water running from streets or sidewalks or in your home or basement? Please call the Water Bureau’s 24-hour Emergency Line at 503-823-4874, email or visit Report water service problem | for more information.

Concerned about water quality?

Want to report discolored water, water that tastes or smells bad, water pressure that's too high or too low, or no water at the tap? Our water quality specialists can help!

Contact the Water Quality Line at or 503-823-7525.

The Water Quality Line operates Monday through Friday, 8:30 a.m. to 4:30 p.m. If you contact us outside of these hours, we will respond the next business day.

Do you suspect you have a water leak?

Learn how to detect leaks at your home or business with this guide from the water efficiency team.