Civil Transportation
SR-455 Ashland City By-pass - Ashland City, Tennessee

TRC provides plans and documents necessary for constructing roadways for both government agencies and private developers.

It has highly skilled and experienced Transportation Engineering teams, which use the latest technology to provide Roadway Design, Traffic Engineering, Planning, Bridges and Non-Traditional engineering solutions.

TRC has the capability and the experience to design all aspects of roadways. It collects raw survey data and develops alignments and grades, cross-sections, right-of-way, driveway entrances, intersections, signalization and signing and marking plans.

Traffic Engineering
TRC provides several traffic engineering services such as turning movement counts, analysis of accident data and determination of signal warranting. In the services field, intersection and signal layout and design. TRC also identifies and analyzes traffic operational issues such as high accident rates or congested intersections. It makes scientific recommendations to assist private developers and governmental agencies to improve traffic operations.

Bridge Design
TRC provides specialized Bridge Design Services to various public and private customers including the Tennessee Department of Transportation. TRC designs and analyzes both existing and new bridge structures made of diverse material, steel, concrete and timber. It is well versed with the federal, state and local requirements for bridge design and rehabilitation.

Non-traditional Engineering Services
TRC also provides a wide variety of non-traditional engineering services to federal, state, municipal, and county agencies. These include roadway inventory data collection, overhead sign structure inspections, and bridge inspections consistent with governmental requirements. Additionally, it provides the collection and analysis of reflectivity readings for both highway signing and pavement markings.

TRC designs ensure complete compliance to regulatory guidelines and harmonize project objectives with environmental and public interest.

Trasnportation Brochure (pdf)


Brady Griggs, P.E., CPESC - Transportation Group Manager

Winford A PetroneMr. Griggs has over fourteen years of experience in Civil Transportation and Environmental Engineering and has worked on projects in several states, including Tennessee, Alabama, and Indiana. He has extensive knowledge of Traffic engineering and is familiar with all stages of roadway improvement projects, from planning through construction. Mr. Griggs has completed coursework in context sensitive design and is a Certified Professional in Erosion and Sediment Control. He has managed a variety of non-traditional engineering services for the Tennessee Department of Transportation, including roadway inventory and infrastructure inspection projects. As Civil Engineering Manager, Mr. Griggs is responsible for all aspects of land development, roadway design, and civil technical reports and presentations at TRC Worldwide Engineering.


Years Experience
Total Years Experience: 14

Master of Science Degree in Civil Engineering
Tennessee Technological University, 1998



  • American Society of Highway Engineers
  • Tau Beta Pi
  • Chi Epsilon
  • Project Experience

    • Hardin County SR 128 - Planning and Design
    • APR State Route 66 in Morristown – Hamblen County
    • APR Interchange Improvements at I75 and I640 in Knoxville – Knox County
    • On-call Traffic Studies for TDOT Maintenance Department
    • Safety Projects for TDOT Maintenance Department

    Contact Details:
    PH: (615) 661-7979

    Civil / Transportation Engineering services include:

    Also please visit our PORTFOLIO to view some of our projects.

    TRC is referenced on Wikipedia regarding the Duke Energy Center. | Building of America Announces Ft. Lauderdale Project Chosen for Gold Medal Feature. | WK Pierremont - Medical Arts Building Award. | Two TRC Projects Win McGraw Hill/Southeast Construction Magazine Best of 2009 Awards.