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 - October 17, 2014

Gladstone Pipeline and River Intake Construction Update

The large red crane was taken apart and loaded onto trucks last week. It has been replaced with a smaller crane that will be on site for the remainder of construction.

The large barge carrying 250 foot lengths of pipe arrived on Thursday. These pipe strings will be welded together over the next 1 ½ weeks into a single, 3800 foot long pipe, in preparation for pullback.

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

  • River Intake Pump Station (RIPS)
  • Gladstone pipeline work
  • Horizontal directional drilling (HDD) under the Willamette River in Meldrum Bar Park

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

Read More

Friday - October 3, 2014

Gladstone Pipeline and River Intake Construction Update

Exterior scaffolding on the RIPS supports workers installing the architectural metal panels

First pump column installed in RIPS

Placing steel shoring to protect trench

The new water pipeline must carefully cross many existing utilities. The project has worked closely with Gladstone Public Works to make sure that utility conflicts are handled properly.

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

  • River Intake Pump Station (RIPS)
  • Microtunnel at Jensen Road pathway
  • Gladstone pipeline work
  • Horizontal directional drilling (HDD) under the Willamette River in Meldrum Bar Park

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

Read More

Friday - September 19, 2014

Gladstone Pipeline and River Intake Construction Update

Architectural metal panels are starting to be installed at the River Intake Pump Station

Placing steel shoring to protect trench

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

  • River Intake Pump Station (RIPS)
  • Gladstone pipeline work
  • Microtunnel at Jensen Road pathway
  • Horizontal directional drilling

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

Read More