July 2015


Ronald (Ron) J. Ebelhar, PE, D.GE, F.ASCE, F.ASTM, is currently a senior principal with Terracon in Cincinnati, OH. After earning his bachelor’s and master’s degrees in civil engineering from the University of Kentucky in Lexington, Ebelhar joined McClelland Engineers in Houston, TX, as a staff engineer in 1977, working in various roles in the geotechnical laboratory, information technology, and marine geosciences groups. From 1987 to 1996, he served as division manager and vice president for Rust Environment & Infrastructure (and its predecessors, S&ME, Westinghouse, and SEC Donohue) in Cincinnati, OH, before taking the position of vice president with H.C. Nutting in 1996. He assumed his current role when Terracon purchased H.C. Nutting in 2007.

As a project manager for geotechnical and environmental engineering projects worldwide, Ebelhar has provided design, consulting, and forensic engineering services for commercial, industrial, transportation, waste disposal, and public utility projects; geotechnical engineering design and construction, including site soil response under seismic, cyclic, and dynamic loading; and marine geosciences and engineering field explorations. He is a registered professional engineer in eight states.

Ebelhar is a fellow for ASTM International, one of the largest voluntary standards developing organizations in the world. He is currently serving as the 2015 chairman of the board. In the past, he has served as chairman of the ASTM Committee D18 on Soil and Rock and several D18 subcommittees, and he is also the 2003 Award of Merit recipient. Ebelhar is also a fellow and member of the American Society of Civil Engineers and a Diplomate, Geotechnical Engineering, in the Academy of Geo-Professionals.