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 River Intake Facility||New River Intake Design|
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.
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.
You can find regular updates on the Work Underway page.
Crews at the river intake pump station site in Gladstone have been working to stabilize and secure the cofferdam sheet piles that detached and tilted into the river late last month.
Yesterday, additional steel beams were installed inside the cofferdam using a ”vibratory hammer,” which is the same method that was first used to install the sheet piles. Once the beams are in place, they will be welded to the existing horizontal support brace in the cofferdam. This work will continue through this week.
Neighbors may notice an increase in noise and potential vibration as crews work to repair the cofferdam and install the beams. Work hours will be 7 a.m. to 6 p.m. Monday to Friday.
Despite the breach, work will be able to continue within the portion of the pump station that has already been constructed. Crews are continuing to prepare for the next stage of forming the pump station floor decking.
We apologize for the inconvenience this work may cause, and thank you for your patience.
For more information, please contact the Project Hotline at 503-697-6502, email email@example.com.
Heavy rains over the weekend may have contributed to a breach on the bank side of the cofferdam, causing it to fill with water. Crews worked to reinstall sheet piles to repair the breach earlier this week.
A second failure on the river side of the cofferdam occurred late yesterday, resulting in several sheet piles detaching and tilting into the river. Safety crews were on-site last night monitoring the situation. Damage assessments are currently underway and the focus is on securing the cofferdam against any further failure. No injuries were reported during this event.
The Partnership and its contractor’s first priority is safety. Crews will be working to stabilize and secure the sheet piles. Despite the breach, work will be able to continue within portion of the pump station that has already been constructed.
Neighbors may notice an increase in noise and potential vibration as crews work to repair the cofferdam. Updates will be provided once the approach to repairs is determined.
For more information, please contact the Project Hotline at 503-697-6502 or email firstname.lastname@example.org.
The river intake pump station walls are continuing to rise! Over the last month, work has focused on forming the structural interior pump walls, installing reinforced bar to support the walls and setting the forms for the next level of exterior walls.
Starting mid next week, a large concrete pour will occur around the exterior wall forms and interior struts, to support the walls. This should take about three days to complete, weather permitting. This pour will bring the elevation of the exterior walls to 45 feet!
Neighbors can expect some noise and an increase in truck traffic during the concrete pour, as 12-15 concrete trucks come and go. Generally, during the next three weeks, work hours will be 7:00 a.m. to 5:00 p.m. Monday through Friday.
Once the concrete is poured for the walls and struts, crews will begin working on forming the pump station floor decks.
We apologize for the inconvenience construction may cause and thank you for your patience as work progresses.