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Martin Marietta

Intern, Mine Planning (Summer 2026)

Company logo
Martin Marietta
Produces construction materials for infrastructure projects, including aggregates, cement, and asphalt.
Assist mining team in planning, data analysis, field work, and cross‑functional projects.
4d ago
Entry-level
Internship
Raleigh, NC
Hybrid
Company Size
9,000 Employees
Service Specialisms
Aggregates supply
Construction materials
Heavy building materials
Concrete products
Asphalt products
Magnesia specialties
Ready‑mixed concrete
Mining engineering
Sector Specialisms
Construction Aggregates
Heavy Building Materials
Cement
Ready Mixed Concrete
Asphalt
Magnesia Specialties
Dolomitic Lime Products
Stone Mining
Role
What you would be doing
drilling operations
geologic logging
mine planning
data analysis
progress monitoring
stakeholder management
  • Assist with drilling and exploration operations; locate project exploration holes and assist with geologic logging and quality sampling
  • Monitor and track mining progress, identifying and addressing deviations and recommending reconciliation plans
  • Work with operations management and mining engineers to develop short, mid-range, and life-of-mine plans for mining sites
  • Perform all activities in accordance with the Company’s Mission, Vision and Values, and in compliance with the Company’s policies, procedures and Code of Ethical Business Conduct
  • Build and maintain strong relationships across the organization, including internal customers and peers
  • Digitize and analyze geological data to help develop geologic models and maps
  • Collaborate with project and cross-functional teams to solve complex business problems, learning and applying continuous improvement methodologies to deliver desired business results
  • Through strategic thinking, manage and create easy to follow plans to guide both mining team and site for planning and development
  • Transform data into information, information into insights, and insights into value creation
What you bring
autocad
gis
microsoft office
bachelor's
time management
communication
  • Superb time management and judgement skills; ability to prioritize and manage multiple tasks
  • Regular travel to operations required to assist the operations teams in achieving established goals. Some out-of-town travel may be required.
  • Knowledge in AutoCAD, GIS applications, and Microsoft Office computer skills
  • Pursing a bachelor’s degree in mining engineering, civil engineering, or geology
  • Excellent oral and written communication skills, including report writing
  • Strong interpersonal skills; self-motivated with the ability to work productively in both individual and group settings
Benefits
  • Employee Assistance Plan
  • Paid Holidays and Vacation
  • Business Travel Accident Insurance
  • College Scholarship Program – for dependent children
  • New Auto Purchase Discount Plans
  • Direct Deposit Payroll
  • Health Care Reimbursement Account
  • Prescription Drug
  • Wellness Programs
  • Matching Gift Program
  • Employee Life Insurance
  • Long-Term Disability Options
  • Dependent Care Reimbursement Account
  • Educational/Tuition Assistance Plan
  • 401(k) with Company matching
  • Spouse & Dependent Life Insurance
  • Salary Continuation – Short-Term Disability
Training + Development
Information not given or found
Company
Overview
Founded 1993
Year Established
The company has grown to become a leading producer of construction materials in the U.S.
  • Specializes in aggregates, cement, ready-mixed concrete, and asphalt, which are used in major infrastructure projects.
  • Supplies materials for projects ranging from highways to residential communities across North America.
  • Financially robust and publicly traded, with consistent growth, making it a major player in the building materials industry.
  • Renowned for dedication to sustainable practices in producing essential materials for construction and infrastructure.
  • Involved in projects spanning critical transportation networks, utilities, and public infrastructure.
  • Offers services in quarry operations and environmental management in addition to core business.
Culture + Values
  • Committed to unwavering safety and health for its people and community.
  • Dedicated to ethical business practices that respect, include, and value everyone.
  • Committed to leading through responsible innovation, continuous improvement, and diverse leadership.
  • Strength and success come from people and respectful relationships in diverse communities.
  • Committed to making the world better today and for future generations, with a lasting impact.
Environment + Sustainability
Net Zero by 2050
Entire Value Chain Commitment
Aims to achieve Net Zero across the full value chain by 2050 with specific targets for Scope 1 and Scope 2 emissions.
Carbon Intensity 0.725
Cement Operations Performance
Carbon intensity of 0.725 ton CO₂e per ton of cement in 2022, reflecting a 13% reduction from 2010 baseline.
10,000 Metric Ton Reduction
Wind Turbines Impact
Annual CO₂ reduction achieved through the installation of wind turbines at Woodville, OH.
20% Fuel Efficiency Gain
Hybrid Wheel Loaders
Purchased seven hybrid wheel loaders, improving fuel efficiency by 20% compared to conventional diesel units.
  • Purchased seven hybrid wheel loaders (~20% more fuel‑efficient than conventional diesel units).
  • Total Injury Incident Rate of 0.78 in 2022 and 99.8% employees with zero lost‑time incidents; no significant environmental violations and < $19,000 in total penalties.
  • Board‑level Ethics, Environment, Safety & Health committee oversees environmental strategy; management Compensation Committee ties incentive pay to sustainability targets.
Inclusion & Diversity
  • Published EEO‑1 data; launched dedicated Inclusion, Engagement & Diversity website section; elevated Head of Inclusion & Engagement to VP level.
  • Joined CEO Pledge for Diversity & Inclusion to support a trusting environment where employees are empowered to discuss diversity and inclusion.
  • No DEI numeric stats on gender in public proxy/website; however EEO‑1 reporting implies internal tracking of workforce demographics.
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