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Clackamas Water Environment Services (WES) owns and operates the sewer system that carries wastewater from homes and businesses in Happy Valley and nearby areas to our treatment facilities. To ensure we can continue providing safe and reliable sewer service in the future, we need to make improvements and upgrades to the Intertie 2 Pump Station.
The Intertie 2 Pump Station diverts wastewater from one treatment plant, the Kellogg Creek Water Resource Recovery Facility, to another, the Tri-City Water Resource Recovery Facility. The pump station was built to be expanded as the area grows. It is now almost at full capacity. This project will add a new pump and new pipes to connect to a new 30-inch force main.
Currently, the pump station moves wastewater using a 20-inch-diameter pipe. Building the new 30-inch force main will help pump more wastewater and increase the station’s capacity. Parts of the 30-inch pipe were built in 2012, and this project will finish the construction of the remaining sections.
What is a pump station?
Pump stations are used to help transport fluids from one point to another. They play an integral role in sanitary sewer collection systems. Our sewer system relies on pump stations, or lift stations, to push wastewater from point A to point B, especially in cases where gravity can’t move flow from a low-lying area to higher ground.
How pump stations work
What is a force main?
A force main is a pressurized sanitary sewer pipe. Force mains are used where gravity is insufficient to move wastewater through a sewer line.
Project Location
Schedule
From approximately May 12 to July 11, pipes along Johnson Road, in Segment B of the map above, between HWY 224 and SE Theissen Rd, will be relocated in preparation for sewer expansion work that is planned to start in September 2025. Construction will be performed by Tapani, Inc. This work will result in some traffic delays, detours, and disruptions.
Additional schedule details will be posted as we have them.
Project Financing
The total cost of the project is estimated at $23,650,000.
The IT2 Pump Station Expansion and 30-inch Force Main project is part of WES’ Capital Improvement Plan. As such, it is a planned expense that has been included in budget discussions and rate studies. We are committed to keeping rates affordable while meeting the needs of growing communities and replacing old infrastructure.
What will the impact be during construction?
The specific construction impacts are not yet known. There will likely be traffic impacts along SE Johnson Rd and SE McKinley Ave in Clackamas, SE Cason Rd and SE 82nd Drive in Gladstone, and Washington St. in Oregon City. We will share details of construction impacts when more is known.
