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Spring 2026 Engineer Intern/Co-op - Underground Construction & Tunneling
Traylor Bros., Inc.
Highly adaptable heavy-civil contractor specializing in bridges, tunnels, marine, underground and mining projects.
Onsite internship for Civil Engineering students in Underground Construction & Tunneling, gaining hands-on experience in various technical and administrative duties.
19d ago
Entry-level
Internship
Ellicott City, MD
Field
Company Size
397 Employees
Service Specialisms
Construction services
Project Management
Engineering
Design
Technical Services
General Contractor
Turnkey
Sector Specialisms
Heavy Civil Construction
Bridge Structures
Marine Infrastructure
Underground Construction
Mechanical Construction
Boilermaker Construction
Piping Systems
Mechanical Equipment Installation
Role
What you would be doing
site audits
material testing
quality assurance
drawing estimating
safety plans
field tests
Conduct site audits and material testing and analysis
Support with procurement and quality assurance reviews
Assist with drawings (method/field) estimating, scheduling, and surveying
Maintaining files and records, copying, and scanning
Perform inventory checks, daily field engineering tests, and cost analyses
Process charts/graphs, designs, and proposals
Complete change order preparations and production tracking
While performing the duties of this job, the employee occasionally works near moving mechanical parts and construction equipment; in high, precarious places; and in outside weather conditions and is occasionally exposed to fumes or airborne particles, toxic or caustic chemicals, and risk of electrical shock where employee must utilize the proper personal protective equipment and/or other safeguards for their protection. The noise level in the work environment is usually moderate to high.
Assist in development and implementation of safety plans
What you bring
autocad
management thinking
leadership potential
problem solving
civil engineering
construction management
AutoCAD experience preferred
Apply critical engineering and management thinking
Candidates should possess leadership potential, be problem-solvers, and be able to make decisions in a fast-paced environment
While performing the duties of this job, the employee is regularly required to use their hands and fingers to handle, feel objects, tools, or manipulate controls; reach with hands and arms; and talk or hear. The employee frequently is required to stand, walk, and sit. The employee is occasionally required to climb or balance and stoop, kneel, crouch, or crawl. The employee must occasionally lift and/or move up to 25 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and the ability to adjust focus.
Candidate must be currently enrolled in Civil Engineering, Construction Engineering & Management, or other related program at the time of their internship, as well as having completed their sophomore year
Benefits
Information not given or found
Training + Development
Information not given or found
Interview process
Information not given or found
Visa Sponsorship
Information not given or found
Security clearance
safety, quality, and productivity commitment checks
The National Heavy Civil division has completed over $4 billion in transportation projects within the past five years.
135 bridges
Major Bridges Completed
The company has successfully completed construction on more than 135 major bridges across various projects.
115 miles
Tunnels Constructed
The Underground division has completed the design and construction of over 115 miles of tunnels.
1946
Year of Founding
The company was established in 1946 in Indiana by civil engineer William F. Traylor.
Now led by the third generation of Traylors, it thrives as a family-run heavy‑civil specialist.
The Underground division tackles complex tunneling—including soft ground, hard rock, EPB and drill‑and‑blast methods.
The Mining division manages shaft, decline and underground development from design through completion.
Owning four permanent equipment yards across the U.S., it operates a vast crane‑heavy fleet maintained by in‑house crews.
Standout feats include mobilizing a super‑crane via the Panama Canal for the Tappan Zee Bridge and post‑Katrina levee work in Louisiana.
Equipped for marine and water projects, it has constructed dams, pump stations, pipelines, sewer and harbor structures.
Known for taking on projects others avoid, it has completed more than 135 major bridges and 115 miles of tunnels.
Culture + Values
Safety
People
Innovation
Ethics
Communication
Community
Mission: excel at constructing complex infrastructure safer, better, and faster by engaging the entrepreneurial and innovative spirit of our team members
Provide limitless opportunity for personal and professional growth in a close‑knit and collaborative organization
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