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Martin Marietta

Supplies aggregates and heavy building materials

Wash Plant/Utility

Machine & Process OperationUpdated on Nov 12
Full-timeIdaho Springs, CO, USA$26 - $35 /hrIn-person

About the Job

Requirements

  • A high school diploma, GED, or equivalent work experience is required.
  • No prior experience is required.
  • Mechanical aptitude and technical aptitude are required.
  • Knowledge of plant components is required.
  • Critical-thinking and time-management skills are required.
  • Knowledge of Mine Safety and Health Administration (MSHA) compliance and regulations is required.
  • Effective written and spoken communication is required.
  • Must be able to lift and carry up to 50 pounds for plant maintenance and equipment servicing.
  • Must be able to bend, stoop, climb, and reach, and maintain three points of contact when climbing on or off machinery or ladders.
  • Must have hand-eye-foot coordination to operate controls and depth perception, with or without visual aid, for distances up to 150 feet.
  • Must be able to work outdoors in all weather conditions, including cold, wet, dry, and dusty conditions, and in noise levels up to 85 decibels.

Responsibilities

  • Safely and efficiently operate, monitor, and maintain plant processing equipment, observing visual and auditory signals during operation.
  • Start, monitor, and regulate crushers, screens, conveyors, feeders, and pumps in compliance with safety standards.
  • Adjust process settings to ensure optimal material flow and quality in line with job specifications.
  • Operate skid steers and front-end loaders during load-out or cleanup tasks.
  • Conduct pre-shift and ongoing inspections of plant and mobile equipment, and document daily reports accurately.
  • Perform preventive maintenance, including greasing, cleaning, screen changes, belt splicing, and bearing or pulley replacements.
  • Identify malfunctions or blockages, safely shut down equipment during emergencies, and initiate repair requests.
  • Maintain a tidy work area by clearing spillage, dust, and debris around equipment and haul roads.
  • Follow MSHA and company safety policies, including proper personal protective equipment use.
  • Communicate with supervisors and teammates to support efficient workflow and safety compliance.
  • Assist in training new or temporary staff on equipment operation and safety procedures.
  • Perform additional assigned duties such as cleaning, quality control, and rail loading.
  • Maintain daily production reports recording activity levels, downtime, and material inventory.
  • Ensure compliance with environmental regulations regarding batch plant operations and dust control.

Desired Qualifications

  • Six months to one year of experience in aggregate plant operations or a similar heavy building materials industry is preferred.

About the Company

Martin Marietta

Supplies aggregates and heavy building materials

Martin Marietta is a leading supplier of aggregates and heavy building materials, serving communities through a network of operations in 29 states, Canada, and the Bahamas. It also runs a Specialties business that provides high-purity magnesia and dolomitic lime for environmental, industrial, agricultural, and specialty uses. The company’s products are used as foundational resources in construction and industrial applications, with materials sourced, processed, and delivered through an integrated network to customers. What sets Martin Marietta apart is its scale, geographic reach, and commitment to safety, integrity, excellence, community, and stewardship, along with a focus on customer service and being a good neighbor in hundreds of communities. Its goal is to build a world-class organization that supports the long-term success of employees, communities, and shareholders, creating lasting impact beyond tomorrow.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Raleigh, NC
Founded
1961

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