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Willamette River Crossing Project: Expect South Waterfront Traffic Impacts in November (near RiverPlace)

Traffic Advisory
Portland Water Bureau contractors are temporarily closing the right lane of southbound Harbor Drive on weekdays from 7 a.m. to 5 p.m., for about a week, starting Nov. 2, 2021. Additional impacts are expected on South Montgomery Street later in the month, more details to come.

Portland Water Bureau contractors will temporarily close the right lane of southbound Harbor Drive on weekdays from 7 a.m. to 5 p.m., for about a week, starting Nov. 2, 2021.

Geotechnical probing and testing over the past year-and-a-half helped identify the path for the Willamette River Crossing, a new earthquake-resistant water pipe under the Willamette River. Over the next four months, our contractor will fine-tune the design so we can begin construction in summer 2022. The lane closure will allow crews to sample soil and locate underground utilities along South Harbor Drive.

Traffic impacts:

This map shows soil sampling and utility locates will take place in South Harbor Drive, South Montgomery Street and in South Waterfront Park.
  • Drivers: Starting Nov. 2, for about a week, southbound traffic will be limited to one lane between 7 a.m. and 5 p.m. weekdays. 
  • Pedestrians: Sidewalks and the ADA ramp between South Harbor Drive and Southwest Naito Parkway will remain open. However, there may be delays when we move equipment to and from the worksite. 
  • Bicycle riders: A detour will be in place for the South Montgomery Street Greenway.
  • TriMet riders: Bus Line 96, Stop 11001, will be moved to avoid the construction area. Visit for details.

What to expect

  • Please allow extra travel time and respect work zone safety cones, detours, and flaggers.
  • No homes or businesses are expected to be out of water service because of this work.
  • The traveling public is reminded to stay alert and use caution as traffic may suddenly slow or stop. To avoid traffic delays, drivers should use alternate routes around the work site.
  • Traffic impacts are also expected on South Montgomery Street later in the month. Details will be posted on the project's construction update webpage.

About the Willamette River Crossing project

Portland’s water mains (pipes) that cross the Willamette River are more than 50 years old and will probably not survive a major earthquake. As part of the Portland Water Bureau’s commitment to preparedness, we are installing an earthquake-resilient water pipe deep under the Willamette River . Our investment in this project will make sure we can deliver water to hospitals, fire fighters, local businesses and 360,000 residents on the west side of the river after an earthquake.

This project is currently in the design phase and we expect to begin construction in summer 2022. More information:

About the Portland Water Bureau

The Portland Water Bureau serves water to almost a million people in the Portland area. Portland’s water system includes two great water sources, and tests our system every day with 260 samples per month. The Portland Water Bureau treats water to control organisms that would make people sick but does not currently treat for Cryptosporidium. Portland is installing filtration to remove Cryptosporidium and other contaminants from drinking water by 2027. The Water Bureau is committed to serving excellent water every minute of every day.


WRX Project Team

phone number503-823-7499

Project Voicemail/Hotline - Press zero at any time to skip the message and leave a voicemail. Please leave your name and phone number twice. A staff person will call you within one to three business days. To report a water service emergency, call 503-823-4874.

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