Clackamas River Intake

Lake Oswego’s river intake, also known as the “raw water pump station”, was constructed in 1968, expanded in 1980, and upgraded in 2002.  The facility pumps untreated “raw” water from the Clackamas River to a water treatment plant in West Linn.  From there, treated drinking water is delivered to Lake Oswego residents.

The existing facility has some serious problems:

  • The structure’s concrete floor is decaying and would be costly to repair.
  • Pumps are decades old and suffer from chronic mechanical problems and breakdowns.
  • Electrical and motor cooling systems are inadequate and cannot be upgraded within the existing structure.
  • Reliable pump capacity is only 12 million gallons per day.  Over the past decade, Lake Oswego’s summer peak day demand has regularly exceeded this limit.

Given these problems, upgrading and expanding the existing water intake facility is not a viable option.

A New River Intake Pump Station Under Construction

A new Clackamas River intake pump station, at the western edge of Chief Charles Ames Park, was approved by the Gladstone Planning Commission in 2011. Construction began in June 2013.

The new fish friendly water pump station will deliver water from the Clackamas River to the Lake Oswego Tigard Water Partnership’s water treatment plant in West Linn. The new facility will have the capacity to pump up to 38 million gallons per day (mgd) to serve Tigard and Lake Oswego customers, up from the 16 mgd capacity of the current facility. The new facility has a residential-looking façade, improved fencing, high quality building materials, a drinking fountain and native landscaping. It will be constructed just east of the existing pump station.

The existing facility will be removed. The raw water pipeline that carries untreated water from the intake facility to the water treatment plant in West Linn will also be replaced.

Existing Pump Station
New Design
Existing River Intake Facility New River Intake Design


Project Update

In this video, City of Gladstone Public Works Supervisor, Scott Tabor, explains the benefits that Gladstone will receive by coordinating with the Lake Oswego Tigard Water Partnership team.

Additional Information:

  • May 2013 Meet the Contractor Summary
  • Frequently Asked Question about RIP Construction Handout

How to Get Involved

Click here for upcoming meeting dates.

Sign up to receive email notices.  Mark the ‘Clackamas Water Intake’ as your interest.

Click here to contact us by email.

Call the Water Hotline (503) 697-6502.

Look Ahead: 

You can find regular updates on the Work Underway page.

Field Updates

Friday - December 12, 2014

Gladstone Pipeline and River Intake Construction Update

RIPS work bridge

The work pad was removed last week at the drilling site in Meldrum Bar Park.

This update includes construction work in the following areas. Click below for specific information on each location:

  • River Intake Pump Station (RIPS)
  • Gladstone pipeline work - W. Clackamas Blvd. and Portland Ave.
  • Meldrum Bar Park pipeline work - night work on Meldrum Bar Park Road expected to begin in January

Read More

Friday - December 5, 2014

Pipe installation under the Willamette River – a major milestone reached!

The Lake Oswego Tigard Water Partnership achieved a major project milestone this fall with the installation of a new 36-inch diameter waterline under the Willamette River. This monumental endeavor was accomplished with minimal impacts to riverbeds, water and wildlife.

This short video shares the story of this remarkable feat of engineering ingenuity.

Read More

Tuesday - November 25, 2014

Gladstone Pipeline and River Intake Construction Update

Installing the electrical transformer and concrete pads at the site.

Intersection at W. Clackamas Blvd. and Portland Ave. closed for safety over Thanksgiving

This update includes construction work in the following areas:

  • River Intake Pump Station (RIPS)
  • Gladstone pipeline work - W. Clackamas Blvd. and Portland Ave.
  • Meldrum Bar Park pipeline work - drilling site

Read More