MIXER DRIVER
Knife River Corporation
Deliver ready‑mix concrete to job sites, operate mixer truck, and ensure safety.
24 days ago ago
Junior (1-3 years)
Full Time
Sioux City, IA
Field
Company Size
5,700 Employees
Service Specialisms
Aggregate production
Ready‑mix concrete
Asphalt production
Construction services
Cement production
Integrated construction services
Sector Specialisms
Aggregates
Asphalt
Ready-Mix Concrete
Liquid Asphalt
Construction Services
Energy Services
Role
What you would be doing
truck positioning
moisture adjust
drum control
concrete delivery
recordkeeping
regulatory compliance
- Positions truck for unloading and attaches chutes safely.
- Adjusts moisture to contractor’s requirements.
- Adjusts drum revolutions to improve concrete quality.
- Perform daily truck inspections and report needed repairs or safety concerns.
- Drives truck safely into position to receive load and adjusts ready mix to proper slump.
- Communicates with customer to understand requirements of job and deal with safety concerns. Clear communication is a must.
- Ensure OSHA, DOT, EPA, DNR, MSHA, Federal, State, and Local safety and environmental regulation compliance including attending training.
- Cleans truck safely after delivery to prevent concrete from hardening in mixer and on truck, using water hose and hoe. This may require climbing up ladder using 3 points of contact onto platform.
- Drives truck equipped with auxiliary concrete mixer to deliver concrete mix to job sites.
- Complete recordkeeping tasks, including note changes made to the product and any weather and environmental conditions on the load ticket for quality assurance; daily timekeeping and time off requests; inspection reports.
- Perform daily housekeeping in truck cab and maintenance of equipment, including fluid levels and tire pressure.
What you bring
dot medical
class b
air brakes
driving record
ready mix
high school
- DOT Medical card or must be able to obtain one.
- Class B CDL license with air brakes.
- Recognizes surroundings and practice traffic awareness to maintain a safe environment.
- Must maintain medical card and acceptable driving record.
- One to three months experience and/or training related to ready mix delivery.
- High school diploma or GED.
Information not given or found
Training + DevelopmentInformation not given or found
Interview process
Information not given or found
Visa SponsorshipInformation not given or found
Security clearanceInformation not given or found
Company
Overview
Founded 1992
Year Established
The company was established in 1992, marking its beginning in the construction materials industry.
- Provides aggregates, asphalt, ready-mix concrete, and other materials for infrastructure projects.
- Serves customers in both public and private sectors across the United States.
- Typical projects include road construction, bridge building, and commercial and residential developments.
- Committed to quality and timely project completion, acting as a trusted partner in infrastructure development.
- Strength lies in an extensive network of production facilities, enabling the support of a wide range of construction needs.
- People: Success Depends on Each Other
- Safety: Top Priority on Every Task, Every Time
- Quality: Setting Ourselves Apart
- Environment: Keeping Our Communities Beautiful
- Putting people first: taking care of employees, customers and communities by operating with integrity and always striving for excellence
33%
Renewable Diesel Usage
In 2024, renewable diesel accounted for 33% of total diesel fuel consumption, contributing to reduced emissions since initial use in 2021.
Several thousand
Rail Transport Reduction
Rail transport has reduced over-the-road truck deliveries by thousands annually, significantly cutting emissions and traffic.
2022-23
Emission Tracking Baseline
Established a baseline for emissions in 2022 with continued tracking in 2023, including a third-party audit for data accuracy.
2023
Sustainability Committee
A sustainability committee was formed in 2023, overseeing environmental initiatives with executive support.
- Warm-mix asphalt used where allowed to reduce fuel usage and emissions during production
- Recycling/reusing materials: asphalt pavement, refined fuel oil, demolition concrete, returned concrete, fly ash, slag, silica fume, stone reject material
- Captured and reused wash and storm water in aggregates/concrete operations
- Environment Award recognizing employee sustainability projects
- Establishing carbon emission intensity goals, evaluating opportunities to improve emissions intensity
- Investments in emission-capturing equipment and carbon-sequestering synthetic aggregates (via Blue Planet partnership)
- Participating in EPD creation for ready-mix and asphalt aligned with Federal Buy Clean initiative
- CSC certification and Environmental Product Declarations in prestress division via Climate Earth
- Goal: net-zero or net-negative carbon footprint for synthetic limestone products (Blue Planet)
- Outreach goal: increase number of available minority, female, veteran, and disabled candidates via targeted partnerships
- Training programs include Unconscious Bias, Diversity and Discrimination, Anti‑Harassment, Anti‑Bullying, Workplace Respect, Sexual Harassment, DEI 101 and Unpacking DEI
- Life at Knife: 'One Team: Stronger Together'—treat each other fairly and with respect; operate with integrity; keep learning
- Human Rights, EEO/AAP policies in place; EEO‑1 report published online
- EEO Employer Report includes gender breakdown (available via EEO‑1)
- Building Strong Communities program with focus areas including minority and female recruitment
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