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