Barr Engineering and Environmental Science Canada Ltd. opened in Calgary, AB, in 2010
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John Gefferth, Joelyn Kozar, and Justin Harms join Barr

October 31, 2018

Barr adds a senior mining environmental consultant in Salt Lake City, an ecologist in Calgary, and a senior structural engineer in Hibbing.

Senior mining environmental consultant John Gefferth brings to Barr four decades of experience working at surface and underground coal mines. His background also includes mine engineering, operations, and closure.

Ecologist Joelyn Kozar joins Barr with 6 years of experience involving wetland assessment, delineation, and classification. Joelyn’s project work entails leading wetland, weed, and vegetation-community surveys and assisting with nest sweeps and rare plant surveys. She is also skilled at aerial imagery interpretation, geographic information system (GIS) digitizing, and environmental desktop reviews. 

Justin Harms, PE, a senior structural engineer, joins Barr with more than 12 years of experience in civil/structural design, project and construction management, and field engineering support for power generation and industrial projects. Justin has also provided forensic investigation and analysis, estimating, scheduling, forecasting, cost control, and market research services.