This eight-hour engineering course addresses the maintenance and design of gravel roads. Unpaved surfaces make up a sizable percentage of both domestic roads, as well as roads abroad; therefore, the administration and maintenance of these road systems can be an enormous task. Most of the maintenance duties of these road systems fall on local authorities, although much of the remaining responsibilities lie with state highway agencies.

This course provides an overview of the administration, maintenance and design, reshaping and rehabilitation, and construction considerations of gravel roadway systems. Special topics include drainage, erosion and control, windrows, superelevation, as well as other special areas of concern.

• Learn the make-up of fly ash concrete 
• Discuss the pros and cons of its use.