CONSTRUCTION INFORMATION
The majority of the construction work will be on-site at the future home of the Redmond Wetlands Complex, where the city currently repurposes and discharges treated wastewater effluent and biosolids.
The installation of a 48-inch interceptor line to connect the Wetlands Complex to the existing wastewater treatment plant in Dry Canyon will impact travelers along Northwest Way, NW Coyner Avenue, NW Pershall Way, NW 19th Street, and Euston Lane. Expect the presence of flaggers and temporary traffic lights to help manage traffic and ensure safety. Single-lane closures will be required to maintain one-way traffic and reduce the need for flaggers. Local access will be maintained, and coordination with emergency services and essential service providers will ensure continued access.
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CONSTRUCTION FAQ
Why does Redmond’s wastewater treatment facility need to be upgraded and expanded?
As Redmond’s population continues to grow—tripling since 2000—the city’s current wastewater treatment facility is reaching capacity. Upgrading and expanding the facility is vital to support future growth and protect the community’s investment in this essential infrastructure.
Why is the city building a wetlands system?
The wetlands project is the most cost-effective way to increase the city’s wastewater treatment capacity. Not only are the initial capital costs lower than other treatment options, but the long-term operations and maintenance costs are also significantly reduced. Additionally, by maximizing the use of the city’s existing property at the current disposal complex and creating public open space, the project increases the overall function and value of the land.
Where is the Redmond Wetlands Complex being built?
The wetlands are being built at the existing Biosolids Disposal Complex, located at 5801 Northwest Way, Redmond. For 45 years, the city has used this site to repurpose and discharge all of Redmond’s wastewater effluent and biosolids.
How will the expansion site look?
The overall site layout, architectural features, and public access areas are designed to blend with the natural landscape as much as possible while remaining cost-effective. The site will also include a main division building, maintenance building, generator building, operations building, vacuum truck dump, headworks screening, lift station, sludge drying beds, and associated roads and parking areas.
Who is building it?
Taylor Northwest (TNW) has been selected as the contractor for the Redmond Wetlands Complex construction.
How long will construction take?
Construction begins in early July 2025 and is anticipated to be completed by Fall 2027.
When will construction take place?
Construction generally occurs Monday through Friday, 7:00 a.m. to 5:00 p.m. Extended hours and weekend work may occur on a very limited basis if needed.
How will construction progress?
Work has been carefully planned to maximize efficiency and reduce impacts.
How will I be impacted by the construction?
The majority of the construction work will be on-site at the future home of the Redmond Wetlands Complex, where the city currently repurposes and discharges treated wastewater effluent and biosolids. This work will not be visible to or impact the public.
The installation of the 48-inch interceptor line connecting the Wetlands Complex to the existing wastewater treatment plant in Dry Canyon will impact travelers along Northwest Way, NW Coyner Avenue, NW Pershall Way, NW 19th Street and Euston Lane. Expect the presence of flaggers and temporary traffic lights to help manage traffic and ensure safety.
What is the cost of the project?
The total cost of the Redmond Wetlands Complex project is estimated at $65 million. This investment will support long-term community needs and environmental stewardship.
Why is there a fence around the area?
Crews installed fencing to secure the construction work site. For your safety and the safety of construction crews, please stay out of the construction zone at all times.
Will there be noise from construction?
Yes, noise is unavoidable during construction. However, crews will follow standard working hours (7:00 a.m. to 5:00 p.m., Monday through Friday) and take steps to minimize noise whenever possible.
Will I be able to access my property during construction?
Yes. Residents will always have access to their driveways and property.
Will I be able to access Dry Canyon Park and the trail system?
During the 48-inch interceptor line installation, access to the Dry Canyon North Trailhead off Pershall Way will be impacted between May and August 2026. Further communications will be provided in advance of any impacts to help community members plan accordingly.
Will garbage, mail, deliveries, and emergency services be impacted?
No. Access for essential services will be maintained throughout construction. Coordination with service providers will help ensure minimal disruption.
What should I expect for traffic and access?
Road work associated with the construction of the 48-inch interceptor line will impact traffic. Local access will be maintained. Construction will begin at NW Euston Lane and progress toward the existing Wastewater Treatment Plant at the north end of the Dry Canyon Trail.
Single-lane closures will be required along Pershall Way, Coyner Avenue, Northwest Way, and 19th Street. Temporary stop lights will be used to maintain one-way traffic and reduce the need for flaggers. Please plan and allow extra time for travel in the area.
Coordination with emergency services and essential service providers will ensure continued access.
How can I stay up to date on construction progress?
Sign up for construction-specific updates on the project website: redmondwetlandscomplex.com. Updates will be shared to keep you informed about project progress, traffic impacts, and other updates.