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Expert Civil Construction Services in Everett, WA
IMCO Construction is a premier civil contractor specializing in complex infrastructure projects across the western United States. With decades of experience in design-bid-build, design-build, and preconstruction services, we deliver innovative solutions for water, wastewater, energy, transportation, and industrial projects. Our team combines technical expertise with a relentless focus on safety, having completed high-profile projects like the Priest Rapids Dam Right Embankment Improvements and the Mountain Home Air Force Base Water Resilience Project. We prioritize collaborative partnerships with clients and stakeholders, ensuring projects meet rigorous standards for quality, schedule, and safety.

Recognized with industry awards such as the ENR Northwest Award of Merit, our commitment to excellence is reflected in our IMPACT safety program and patented construction methodologies. Our leadership team includes nationally certified professionals like Fred Simmons, a Design-Build Institute of America-certified expert, and Brett Himes, a regional industry leader. We serve public and private clients with integrity, leveraging advanced virtual design construction technology to optimize project outcomes.
Services
Design-Bid-Build Design-Build Preconstruction Services Virtual Design Construction Emergency Repairs Water Infrastructure Energy Storage Systems Dam Rehabilitation Wastewater Treatment Industrial Construction
Highlights and features
  • We offer 40+ years of experience in civil infrastructure construction
  • Our IMPACT safety program exceeds industry standards
  • We implement patented processes for dam and spillway repairs
  • Our team includes nationally certified design-build professionals
  • We've completed 15+ ENR-recognized award-winning projects
Associations and certifications
  • Design-Build Institute of America
  • ENR Northwest Award of Merit
What people say
Exceptional company Quality work Safety commitment Complex projects Industry leader
Services
Design-Bid-Build
IMCO Construction delivers design-bid-build services with proven expertise in public works projects. Our self-performance capabilities ensure tight control over cost, schedule, and quality. We specialize in water infrastructure, transportation systems, and industrial facilities across the Pacific Northwest. Our collaborative approach combines technical expertise with innovative problem-solving for complex civil projects.
Design-Build
Our design-build services streamline project delivery through single-source accountability. Partnering with top engineering firms, we provide end-to-end solutions for water treatment plants, energy facilities, and infrastructure projects. This approach reduces risk while maintaining quality standards. Recent projects include the Mountain Home Air Force Base Water Resilience Project and progressive design-build water filter plant upgrades.
Preconstruction Services
IMCO's preconstruction services include cost estimating, risk analysis, and constructibility reviews. We leverage technical expertise to optimize project design and delivery strategies. Our team provides data-driven insights for complex infrastructure projects, ensuring alignment with client goals while maintaining budget and schedule parameters through detailed planning and analysis.
Dam Rehabilitation
Specializing in dam and spillway repairs, we employ patented techniques for structural improvements. Our work includes Thompson Falls Dam radial gate installations and Priest Rapids Dam embankment stabilization. Projects incorporate seismic upgrades, erosion control, and safety enhancements while maintaining operational continuity during construction phases for critical water infrastructure.
Energy Storage Systems
We construct utility-scale battery energy storage systems like the 82MW Happy Valley project. Services include site preparation, concrete foundations, and equipment installation. Our technical expertise supports renewable energy integration through projects that enhance grid stability and support clients' sustainability goals with scalable storage solutions.
People
Fred Simmons
Design-Build Manager
Earned national design-build certification from the Design-Build Institute of America. Led Idaho's first progressive design-build water treatment plant retrofit. Demonstrates expertise in collaborative delivery methods and complex infrastructure projects.
Brett Himes
Operations Manager
Started as intern at IMCO, progressed to leadership role. Recognized regional industry leader by ENR Mountain States & Southwest. Brings construction management expertise from University of Washington to project execution.
Questions
What types of construction projects does IMCO specialize in?
We focus on civil infrastructure projects including water/wastewater systems, dams, energy storage facilities, transportation infrastructure, and industrial construction across the western United States.
Does IMCO handle emergency construction projects?
Yes, we provide emergency response services for infrastructure failures like the 2023 Lewiston water reservoir rupture, offering rapid mobilization for critical repairs.
What safety certifications does IMCO have?
Our IMPACT safety program exceeds industry standards. We employ nationally certified professionals and maintain an exemplary safety record on high-risk projects.
Can IMCO handle complex design-build projects?
Yes, we have extensive design-build experience including the Mountain Home Air Force Base Water Resilience Project and progressive design-build water treatment plant upgrades.
What geographic areas do you serve?
We primarily serve the Pacific Northwest including Washington, Oregon, Idaho, and Alaska, with select projects across the western United States.
What construction management services do you offer?
We provide GCCM/CMGC services for water treatment plants and industrial facilities, combining technical expertise with collaborative delivery methods for complex infrastructure projects.