All Work Underway

Work underwayWork underway  Road closure Road closure  Partial closure Partial closure  Night work Night Work

Most pipeline for the project is installed in the public right of way. There is an exception, where the pipeline tunnels under the Willamette River. Read the What to Expect During Construction handout (781 kb, May 2014) for more detailed maps and information about the construction process.

For a project construction schedule map visit the About the Partnership page

Field Updates

Friday - April 24, 2015

WTP reaches another milestone

Sedimentation basins (upper left corner).

Water Treatment Plant Construction Update

Work at the site is successfully transitioning to a new phase, as the eight new structures that have been constructed are progressing through their startup and commissioning stages. The yellow tower crane has been removed, and the red tower crane will remain to service the major work to occur in the center and west of the site.

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Thursday - April 23, 2015

B Avenue construction moves into the business district

Crews install pipe along B Avenue between 5th and 4th Streets.

Lake Oswego Pipeline Construction Update

This update includes construction work in the following areas:

  • B Avenue construction - pipeline installation moves into the business district
  • McVey Avenue pipe bridge - surveying begins next week
  • Highway 43 nighttime construction - pipeline testing continues

For the most up to date information on construction and road closures, follow @LOTwater on Twitter, visit work underway, or contact us.


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Tuesday - April 21, 2015

Crews begin tunneling under I-5 in Tigard

Night work 72nd Avenue

Tigard Pipeline and Bonita Pump Station Construction Update

This construction update includes all work in Tigard for the project.

Keep reading for specific information on each location:

  • Bonita Road Pipeline
  • Bonita Pump Station
  • Milton Court

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Friday - April 17, 2015

Restoration of concrete panels continues on Highway 43

West Linn Pipeline Construction Update

This update includes construction work in the following areas. Read more for specific information on each topic:

  • Highway 43 - permanent trench patch complete; concrete panel work continues
  • Mapleton Drive - pipeline construction expected to begin soon
  • Neighborhood construction meetings - new meeting location and frequency
  • Meet the Mapleton Drive Pipeline Contractor - Meeting to be held May 19


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Friday - April 10, 2015

Preparations begin for reservoir tank and pipeline testing


Waluga Reservoir 2 (WR2) Construction Update

Pipeline preparation

Crews have finished pressure testing the pipeline connection between the newly installed pipe in Waluga Park and Waluga Reservoir 2 (WR2). Next week, the pipe will be chlorinated and tested for bacteria. These efforts are being done in preparation for the WR2 to be filled for testing at the end of the month. Crews from PGE will also be on site next week to install a power feed to the new WR2.

Inside the WR2

In the next few weeks, the interior of the WR2 will receive a final washdown and cholorination. During the week of April 27, crews will begin filling the WR2 for testing before it’s put into operation. The tank fill will take about a week. After the WR2 passes its testing, it will be painted, depending on the weather, likely early this summer.

Safety Reminder

The WR2 is an active construction site—24 hours a day, seven days a week—and, for your safety, visitors are prohibited from entering this area.

Project information

For the most up to date information about the project, please visit work underway or contact us.