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Lehigh Hanson Assistant Plant Manager in Thornton, Illinois

AutoReqId: 11613BR

Line Of Business: Aggregates

Department: Operations

Primary Location: Thornton-IL

Pay Class: Salaried Exempt

Job Posting:


We’re Lehigh Hanson. Our products build cities and towns, including stadiums that hold thousands of fans, and bridges that support millions of vehicles. We have thousands of employees across hundreds of locations in the U.S. and Canada, making us North America’s leading supplier of cement, aggregates, ready mixed concrete, asphalt and related construction materials.

We might be a big company, but we appreciate and encourage our people to share their ideas and help shape our future. We want every one of our people to play an active role in growing our business. With our diverse product lines and locations across North America, there are opportunities to explore different roles and work on a variety of exciting and interesting projects.

We’re a tight knit team. While we strive to be the best, we do it with an attitude that is humble, accessible and down-to-earth. We don’t ask you to “fit in” to our culture. We invite you to add to it.


Have you always wanted the keys to the car? Now you can have the keys to the kingdom as an Assistant Plant Manager for our large quarry. This position will be responsible for daily and efficient operation of the Thornton, IL quarry.

  • Assist in the planning and directing the daily operations of the quarry.

  • Assist in production planning, staffing, and day-to-day manufacturing operations in a cost-effective manner

  • Prepare operational schedule and coordinate production activities to ensure production and quality of products meet specifications

  • Troubleshoot and resolve operational, manufacturing, and maintenance problems to ensure minimum costs and prevent operational delays

  • Establish key inventoried items needed for all MRO (maintenance, repair and operation) items for the plant, and effectively interact with governmental and regulatory agencies, customers, vendors, Lehigh Hanson management, and neighbors as required.

  • Assist in quarry development and mine planning and reporting.

  • Manages product inventory.

  • Coordinates and attends safety and departmental meetings.

  • Ensures plant and mobile equipment is kept in good and safe working condition to maximize asset throughput.

  • Works closely with plant maintenance personnel to determine optimal times for production equipment repairs.

  • The incumbent must understand and comply with Company compliance policies, including the Code of Business Conduct (including NAM supplements), the anti-corruption policy and the Antitrust Compliance Policy, and is required to participate in compliance training in such policies and provide disclosures and compliance certifications from time to time. As a manager, the incumbent is expected to require compliance with such policies by subordinates, monitor their activities for compliance and disclose incidents of non-compliance as provided by such policies.

  • Must complete all assigned work in compliance with all federal, state and local regulatory requirements (i.e., MSHA, OHSA, DOT, DOL, etc.), including safety programs administered at a State or Local level where allowed by the Department of Labor. Must maintain awareness of surroundings at all times and perform their work in a safe and productive manner. In the event of a workplace incident, immediate notification to a supervisor and/or manager is required.

This position will be based at Thornton, IL


  • Bachelor's degree with mining related discipline or the equivalent in relevant work experience

  • Prior supervisory experience preferred

  • At least 4 years of quarry experience and understanding crushing and process equipment desired

  • Excellent verbal and written communication skills

  • Excellent organization and time management skills

  • Proficient working knowledge of Microsoft Office products

  • Solid understanding of government regulations and demonstrated ability to impact safe working practices

  • Ability to define problems, collect data, establish facts, and draw valid conclusions

  • Ability to communicate clear and concise instructions in a professional manner


At Lehigh Hanson, we care a great deal about your health which is why there is no waiting period to participate in highly competitive medical, dental, vision, and life insurance programs. In addition, we offer a 401(k) retirement savings plan with an automatic company contribution as well as matching contributions.

External candidates must be able to work in the USA without sponsorship.

No search firms please

Lehigh Hanson is a Drug Free Workplace



Employer Statement: Equal Opportunity Employer - Minority / Female / Veteran / Disabled