Ready-Mix Plant Supervisor

Idaho-Materials-; Mountain Home (ID); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Competitive pay

Medical & dental benefits

Retirement savings plan

Wellness programs

Growth opportunities

Job summary

Idaho Materials & Construction is seeking a Ready-Mix Plant Supervisor to oversee concrete plant operations, maintain equipment, and ensure timely product delivery to clients. The role emphasizes safety, data accuracy, and collaboration with the Plant Manager.

The ideal candidate will have 3+ years in ready-mix concrete, a high school diploma or GED, and the ability to lead and coach plant staff while complying with DOT/OSHA/EPA standards. The position is full-time and on-site at the Idaho plant.

Qualifications

• Minimum 3 years of experience with ready-mix concrete and related products.
• Ability to direct, motivate, and coach plant staff.
• Understanding of safety practices and regulatory requirements.

Responsibilities

• Oversee weekly and monthly safety meetings and promote safe behavior.
• Coordinate production schedules with Plant Manager and ensure on-time delivery.
• Ensure batching, scale, and gate accuracy and monitor material quality.
• Supervise plant personnel and assist with hiring and performance reviews.
• Maintain payroll hours data and audit time entry daily.
• Perform preventive maintenance and monitor equipment condition.

Skills

Ready-mix concrete experience

Supervisory experience

Safety leadership

Operations coordination

Education

High school diploma or GED

Job description

Career Opportunities: Ready-Mix Plant Supervisor (529496)

Requisition ID529496-Posted10/01/2026-AMAT-Idaho Materials & Construction-Full Time-Operations, Field and Plant Mgmt-United States-Idaho

Idaho Materials & Construction, is a CRH Company. Our purpose, commitment to the future, and formula for growth is to champion the safety, empowerment, and development of our employees. We strive to be The Preferred Source of quality sand, rock, landscape products, ready-mixed concrete, asphalt, paving and construction services. We succeed as a team by embracing integrity, mutual respect, innovation, service, sustainability, and financial strength.

Position Overview

Supervises ready mix concrete plant operations. Maintains equipment and material to produce concrete and ensures delivery of requested products to the client and their subcontractors. Responsible for the safety of plant personnel and assuring that our customer adheres to our safety practices. Also provides the Plant Manager with timely and accurate reports and briefings as required. Coordinates daily production and delivery activities with Plant Manager. Required work schedule varies to ensure timely distribution of concrete while maintaining client satisfaction. Reports to the Plant Manager.

Key Responsibilities (Essential Duties and Functions)

• Conducts/oversees weekly and monthly safety meetings, maintaining a consistent focus on safe behavior.
• Enforces the wearing of appropriate safety equipment at the plant.
• Coordinates operations schedules and plans with the Plant Manager.
• Responsible for consistent batching sequence and monitoring scale and gate accuracy.
• Assesses the quality of materials delivered and monitors changes in aggregate moisture.
• Supervise employees at the plant in daily activities.
• Assists Plant Manager with hiring, evaluation, progressive discipline, etc.
• Accountable for plant personnel data regarding payroll hours. Time entry should be audited daily for accuracy.
• Monitors loading and tempering time, work with ready-mix drivers to arrive on jobsites in a timely fashion.
• Reviews daily, a pre-shift inspection checklist to ensure equipment is functioning properly.
• Responsible for performing preventive maintenance procedures.
• Periodic inspections are performed to inspect bin integrity, dust collection system, admixture dispensers, gate and rams, and aerator functionality.
• Ensures the plant always performs at targeted capacity.
• Responsible for overall housekeeping including the plant, and office(s).

Qualifications

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.

Preferred Education and Experience

• High school diploma or GED required.
• Minimum of 3 years of experience with ready-mix concrete and related products

1 year or more of m aintenance experience and prior supervisory experience preferred.

• Valid driver’s license required; CDL preferred.
• Working knowledge of DOT, OSHA, EPA, and other applicable regulatory requirements.
• Self-starter with desire to promote values and business principles.
• Ability to direct, teach, motivate, and coach.
• Ability to formulate decisions, make and support recommendations, prioritize work, communicate with multiple parties and handle multiple tasks.
• Excellent interpersonal skills to facilitate positive working relationships with all levels of management and staff.
• Exercise independent decision-making, prioritize conflicting demands, and communicate with multiple associates.
• Must be able to read and write in the English language.

Physical Requirements

The physical demands described here represent those necessary to successfully perform the essential functions of this role. The employee is frequently required to sit, climb, and use hands for signaling and equipment handling.

• Must be able to sit for extended periods of time (up to 8 hrs.), stand, stoop and bend.
• Must have manual dexterity to use hand tools, and be able to see and hear.
• Ability to lift 50 lbs. from ground to waist is required.

The work environment characteristics described here represent those encountered while performing essential job duties. Reasonable accommodations may be made for individuals with disabilities. Employees may occasionally be exposed to wet or humid conditions, moving mechanical parts, outdoor weather, and extreme temperatures. Noise levels range from moderate to loud.

Most time is spent in an outside setting that may require various periods of work in all weather conditions-heat, cold, wet or dry. On occasions, time will be spent in an office environment. May have exposure to dust, sand, gravel, diesel exhaust, etc. Must be able to work early mornings and/or evenings and occasionally, nights. Must be available Monday thru Friday and occasionally, Saturday and Sunday.

The statements included in this job description are not intended to be all-inclusive. They represent typical elements and criteria necessary to successfully perform the job. Other duties may be assigned as required. Requirements for this job are subject to modification by the Company and its designees, and reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

What CRH Offers You

• Highly competitive base pay
• Comprehensive medical, dental and disability benefits programs
• Group retirement savings program
• Health and wellness programs
• Aninclusive culture that values opportunity for growth, development, and internal promotion

About CRH

CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.

Idaho Materials & Construction, a CRH Company, is an Affirative Action and Equal Opportunity Employer.

EOE/Vet/Disability

CRH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.

AI tools may be used in certain stages of the employment lifecycle, such as candidate review; however, all final employment decisions will be made by a person.