A subsidiary of MWH Constructors

Constructing Dreams

With our focus on environmental construction we strive to enhance every community we’re a part of.

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We Know Water

With the successful completion of over 100 treatment plant projects in the Pacific Northwest, we understand what it takes to complete your project.

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Experience That Matters

Specializing in alternative delivery contracting methods we have fine-tuned our processes to suit every type of project delivery.

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Solutions Driven

When faced with challenging projects, our team can provide the best path forward. Our diversified portfolio and eagerness to provide innovative solutions, we try to take on the most difficult projects!

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Committed To Doing It Right.

Slayden Constructors is a leader in the construction industry. Founded in 1984, and based in Stayton, Oregon, Slayden is built on strong values, hard work and a commitment to getting the job done right. The success of our company is best expressed through our efforts in providing a safe work place with respected employees and a committed management team. Our team approach to all our construction projects has provided steady growth in work volume, successful expansion of key management personnel, and an extensive list of satisfied clients for more than 30 years.

Construct Your Future with Slayden

Slayden is always looking for talented, experienced team players whether it be out on the field or in our corporate office. Start your future with Slayden by applying today!

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Serious About Safety

For over 30 years, we’ve dedicated ourselves to job site safety, and our track record of success speaks for itself. Slayden is committed to the safety of each and every employee, including subcontractors and owners. Our employees understand that there’s a safe way to handle every situation whether that’s on the jobsite or off duty. Safety means more than being safe on a jobsite, it means you go home to your family every day.  Our level of commitment has been recognized locally and nationally by the awards we have received.

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Select Projects

Sellwood Bridge Replacement

Sellwood Bridge Replacement

Lake Oswego River Intake Pump Station (6)

Lake Oswego River Intake Pump Station

Lake Oswego Water Treatment Plant Expansion

Lake Oswego Water Treatment Plant

Colorado Lift Station

Colorado Lift Station Upgrades

Willow-Lake-WPCP-Headworks-and-Primary-Treatment-Improvements 113

Willow Lake WPCP Headworks and Primary Treatment Improvements

Management Skills that Help Reduce Costs

"We have been impressed with their management skills, starting with preconstruction where they performed value engineering that reduced costs, lead procurement with detailed bid packages that brought our project qualified subcontractors and manufacturers and produced a schedule that would get our project completed on time. Slayden has continued this into the construction phase by managing the work to stay on schedule."

Randy Rosane, P.E., Project Manager with Water Environmental Services

Positive and Goal-Driven

"Slayden’s positive approach and eagerness to achieve the project goals was a tremendous benefit and a driving force to the project and its success. Slayden achieved all minority, woman, and emerging small business subcontracting goals and also met the 20% Workforce Training and Hiring Program’s apprenticeship requirements. They also held their subcontractors to these same goals and requirements."

Michelle Lostra, P.E., City of Portland, Water Bureau

Strong Communication and Community Outreach

"I feel confident in recommending Slayden for their approach to neighborhood outreach and desire to work with our community outreach and communications team to help keep neighbors informed, resolve issues and mitigate issues."

Katy Fulton, Lake Oswego – Tigard Water Partnership

Efficient and Safe

"I enjoyed their management style, which was efficient while paying attention to cost. This was done without sacrificing safety. I would welcome the chance to work with them in the future."

Daniel G Shepard, Manager, Grants Pass Irrigation District

Positive Relationship Builders

"Slayden has met all conditions of approval and does a great job of keeping the neighborhood informed. Slayden works diligently to accommodate the neighboring citizens. In several cases, Slayden has gone above and beyond the conditions of approval in an effort to solve citizen’s issues. This has led to the development of relationships between the project team and the neighborhood, which have contributed to the project in a positive manner."

Thomas Lebo, Construction Manager, Brown and Caldwell

Respectful, Courteous, and Safe

"Slayden Construction is true to their word, without a doubt I would hire them for future projects. All of the employees that worked at the plant were respectful, courteous, and preformed the duties at hand in a safe manner. I can’t say enough good things about Slayden, as you can see in this evaluation. Surround yourself with good people and it makes you look good. And it doesn’t get any better than Slayden Construction."

William Schmittle, City of Hermiston

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