June 30, 2021


7:45am - 4:00pm EST

Contact Hours


Location Online - Course

This hybrid online class will combine both live instruction and independent online work that you will complete during the day.  Independent work will include quizzes, readings, videos and short assignments.  Access to a computer with a webcam (either a camera that is built into your laptop or one that connects via USB), a reliable internet connection and a workspace that is free from distraction and noise will set you up for success.


Maintaining a gravel road properly requires a clear understand of the need for three basic elements; a crowned driving surface; a shoulder area that slopes directly away from the edge of the driving surface; and a ditch to carry the drainage away from the roadway.  Operators and managers should possess knowledge about good base gravel and gravel driving surface material.  The learner will develop a better understanding of the materials, techniques, and equipment needed for maintaining gravel roads. Participants will learn gravel road design fundamentals starting with construction to reshaping as well as recognizing the necessity of proper drainage.

Join instructor, Walt Catlett for this lively online class and discussion forum that will change the way you think about gravel road maintenance and construction.  You will have the chance to learn about the best practices for not only maintaining gravel roads but learn the key elements in constructing a gravel road.  You will learn organizational tips for selecting the best aggregates for your gravel roads and selecting the best approaches for addressing drainage.  By the end of the training, you will have sharpened your skills about gravel road maintenance and construction.


Module 1: Construction

  1. Gravel Road Cross Section
    1. Crown
    2. Shoulder
    3. Ditch
  2. Design
    1. Green Book
    2. ROW
    3. Utility
    4. Bridges/Culverts
    5. Erosion and Sediment Control
  3. Construction
    1. Work Zone Traffic Control
    2. Roadway Preparation
    3. Base Aggregate
    4. Compact Base
    5. Driving Surface
    6. Placement of Materials
    7. Match Existing Conditions

Module 2: Maintenance

  1. Preventive Maintenance
    1. Shaping Principles
    2. Speed
    3. Moldboard Angle/Pitch
    4. Motor Grader Stability
    5. Windrows
    6. Recovering and Spreading on Roadway
    7. Pulling Shoulders
    8. Mowing
  2. Corrective Maintenance
    1. Rehabilitation
    2. Reshaping Surface
    3. Reshaping Shoulder
    4. Reshaping Cross Section

Module 3: Gravel

  1. Gradation
    1. Surface Gravel
    2. Base Materials
  2. Crushing
  3. Recycled Asphalt
  4. Testing Aggregates
    1. Plasticity
    2. Gradation
    3. Hardness
    4. Soundness
  5. Sampling
    1. ASTM/AASHTO Standards
    2. Experienced Sampler
    3. Poor Sampling Techniques
  6. Process for Obtaining Good Gravel
    1. Establish Specifications
    2. Communicate with Suppliers
    3. Handling Gravel
    4. Pit/Quarry Operations
    5. Loading from Stockpiles

Module 4: Drainage

  1. Basic Cross Section
    1. Crown
    2. Shoulder
    3. Ditch
  2. Roadway Drainage
    1. Roadside
    2. Pumping of Fines
    3. Differential Heaving
    4. Frost Heave
    5. Potholes
  3. Surface Drainage
    1. Dewatering
    2. Drainage
    3. Cross Slopes
    4. Grading of Subgrade
    5. Daylighting vs Bathtub construction
    6. Ditches
    7. Culverts
  4. Subsurface Drainage
    1. Subdrain
    2. Underdrain


Walter C. Catlett

Walter C. Catlett possesses approximately 30 years of safety experience from the concrete pipe industry, military, and consulting engineering.  These experiences shaped his safety mindset, teaching him the importance of clear communication and the necessity to establish a safety culture. He is an effective trainer and educator responsible for the training of public works professionals through industry training events and professional association events for the last 20 years.  He serves on Virginia’s Local Transportation Assistance Program (LTAP) Advisory Board. He also serves on the Arkansas Department of Transportation’s Research Advisory Council. He has a B.S. in Civil Engineering from Texas A&M University in College Station, TX and a Master of Strategic Studies from the U.S. Army War College in Carlisle Barracks, PA.  Mr. Catlett served in the United States Marine Corps and United States Army Reserves for a combined 30 years.

Who Should Attend

Any supervisor or operator who maintains or constructs gravel roads should take this class.

Registration and Payment

The following registration fees cover the session, all course materials and meals:

Local Government: $50.00
State/Federal: $85.00
Private Industry: $200.00

Click here for UVA TTA's general registration information, cancellation policy, and refund policy. UVA TTA accepts the following credit cards: American Express, VISA, MasterCard, and Discover. Credit card information cannot be taken over the phone. Alternatively, after registering you can print out a voucher to send in with your payment. After you have completed the transaction you will receive an automatically generated email confirming registration and payment if applicable. Final confirmation and instructions will be sent out during the week prior to the class date.

Don't have access to a computer?
to get a paper registration form (PDF). Print it out, complete it, and email, mail or FAX it to our office following the instructions on the form. Include your check or government purchase order with your registration form. Please note that emailed or faxed-in registration forms will be considered as a "provisional booking" until payment is received. For more information, call our office at (434) 982-2897, fax at (434) 982-2856 or email uva-tta@virginia.edu