For this commercial mixed-use stormwater lift station project in Beaverton, Oregon, a new development required a reliable pump system to manage stormwater runoff. Given Beaverton’s heavy rainfall during the winter and spring months, the system needed to be robust and efficient.

The development includes a hotel, gas station, and large retail space. Stormwater is collected in an on-site detention pond and then pumped to a nearby creek to maintain proper drainage. The lift station is designed to handle flows exceeding a 100-year storm event, ensuring resilience during extreme weather. While an overflow culvert is present, the pump station operates only below that overflow level.

Privately owned by the developer, The Oregon Worsted Company, the project was designed in collaboration with Dowl. We worked within the developer’s budget to deliver a simple yet effective lift station that meets the site’s stormwater management needs. The system features two 2-horsepower Keen pumps in a duplex configuration for redundancy and reliability.

Located in Washington County, just west of Portland, Beaverton is a key city in the Portland metropolitan area. As of the 2020 U.S. Census, Beaverton had a population of 97,494, making it the seventh-largest city in Oregon. That’s up from 89,803 in 2010—reflecting steady and consistent growth.

Beaverton serves as the economic hub of Washington County and the Tualatin Valley, with neighboring cities including Tigard, Aloha, and Tualatin. One of the city’s major commercial attractions is Washington Square Mall, a regional shopping destination that draws both retailers and visitors from across the metro area.

This stormwater lift station will serve a new mixed-use commercial development in Beaverton, Oregon. The development will include a hotel, gas station/convenience store, and a large retail space.

The system is designed to pump stormwater from an on-site detention pond to Fanno Creek and will operate only to empty the pond. Two separate culverts connect to the creek: the upper culvert functions as an overflow outlet, while the lift station operates only below the overflow elevation.

Currently, the pump station is expected to discharge into the lower culvert, which will then gravity-feed into the creek. All structures and equipment are located above the 100-year flood high water mark, so system redundancy is not required. The system will remain privately owned by the developer and property owner, The Oregon Worsted Company, who contracted directly with Romtec Utilities.

Dowl served as the civil engineer for this project. The firm provides planning, surveying, and engineering services across multiple disciplines, including transportation, civil, structural, water resources, and geotechnical engineering.

Romtec Utilities was contacted by The Oregon Worsted Company to provide the lift station. Preliminary hydraulic reports from Wood and Cascade Water Resources identified the need for a pump station at the site.

Romtec Utilities collaborated with Dowl to develop the design criteria for the stormwater lift station. The final design met the project’s not-to-exceed budget by keeping the system simple while still meeting all performance requirements.

This commercial development stormwater pump system features two horsepower Keen pumps in a duplex configuration, 5’ diameter wet well, control panel, aluminum hatch, discharge piping 4” ductile iron, 4 float sensors for primary level sensing, and stainless-steel guide rails.

The duty point is 200 gallons per minute at 17.8 Total Dynamic Head. The peak inflow is 400 gallons per minute.

We were proud to provide the design, manufacturing, and supply of this stormwater pump station for this commercial development in Beaverton, Oregon for Oregon Worsted Company, in partnership with Dowl.

We can design, manufacture, and supply a commercial mixed-use stormwater lift station for developments across the country to help deal with various stormwater pumping environments. We work with owners, developers, civil engineers, architects, general contractors, and installing contractors to design a system that will meet the pumping requirements of the project.

With our process we send an installation coordinator to the site at installation to aid with commissioning the system and provide on-site instruction on operating the system.

We offer full-service customer support throughout the design and supply of the system to ensure the project is a success. Contact us today to get started on your commercial mixed-use stormwater lift station.

Our focus is to design the system to meet the pumping requirements of the site, stormwater runoff, and all the collection points whether those are storm drains, culverts, or detention ponds.