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Be ready to discuss ready-mix batching, quality control, plant maintenance, OSHA/safety culture, environmental rules, and how you’d balance on-time delivery with cost and product integrity. Use concrete examples of leading crews, fixing downtime, and working with dispatch/customers.
Strong fit if you have ready-mix or heavy-materials plant leadership experience, thrive on shift-driven production, and want to run a CalPortland ready-mix site in Lewis County rather than a remote desk role.
As Ready Mix Plant Manager in Napavine, you would run day-to-day ready-mix plant operations for CalPortland: batching and quality, equipment readiness, safety and environmental compliance, inventory of cement/aggregates/admixtures, and coordination with drivers and dispatch so loads hit job sites on time. Expect hands-on problem-solving on production delays, customer mix specs, and staffing across shifts.
Build operations, safety, and project leadership skills. Free options:
It produces cement and other building materials and operates ready-mix and related businesses across the Western U.S., under Taiheiyo Cement ownership since 1990.
No—the listing is on-site in Napavine, Lewis County, centered on plant operations.
Saylor’s business and management courses and Google’s free project-management intro resources (both free) support operations leadership skills for plant managers.
Website: calportland.com
CalPortland Company, or simply CalPortland, is an American corporation that produces cement and other building materials. It was founded in 1891 and claims to be the largest such company in the Western United States. The company was founded in California but today maintains its headquarters in Summerlin, Nevada. Since 1990, it has been owned by Taiheiyo Cement, a Japanese company.
Public cache only — not an employee review.
CalPortland is hiring a full-time Ready Mix Plant Manager to lead operations at our Napavine facility in Lewis County, Washington. In this hands-on leadership role, you'll oversee all aspects of plant operations—from daily production runs to team management—ensuring we deliver quality concrete products efficiently and safely to our regional customers. About the Role As Ready Mix Plant Manager, you're responsible for the complete operation of a ready mix concrete plant. You'll manage production scheduling, quality control, equipment maintenance, and a skilled workforce. This is a full-time position where your decisions directly impact production output, customer satisfaction, and workplace safety. What You'll Do Direct daily plant operations, including batch scheduling, mixing, and delivery coordination Supervise and mentor plant staff, ensuring adherence to safety protocols and performance standards Monitor equipment maintenance and coordinate repairs to minimize downtime Maintain quality standards for concrete products and manage customer specifications Track production metrics, costs, and inventory to optimize plant efficiency Ensure compliance with environmental regulations and industry safety requirements Respond to operational challenges and implement solutions in real time What We're Looking For Proven experience managing ready mix concrete plant operations or similar heavy manufacturing facilities Strong leadership skills and ability to manage a team in a fast-paced environment Knowledge of concrete production processes, batch control systems, and quality assurance Familiarity with equipment operation and basic troubleshooting Understanding of OSHA regulations and commitment to workplace safety Excellent organizational and communication skills Problem-solving mindset and willingness to work hands-on when needed About CalPortland CalPortland is a leader in construction materials serving the Pacific Northwest. We're committed to delivering reliable products and supporting the infrastructure projects that build our communities. Our team values safety, quality, and operational excellence. How to Apply Ready to apply for this Ready Mix Plant Manager position in Napavine? Submit your application through the listing to be considered.
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