Herman Weissker
John Colgrove is an experienced Traffic Control Designer currently employed at Herman Weissker, Inc. since January 2013, specializing in the development of traffic control plans for major utilities and collaboration with agency representatives to ensure compliance with industry standards. Colgrove has a background in CAD design and archaeology, with previous positions at Wilson & Company, Inc. and the US Forest Service, where skills in GIS and data management were also utilized. Colgrove holds a Master of Arts in Museum Studies from The Johns Hopkins University and a Bachelor of Arts in Anthropology from California State University-San Bernardino, alongside degrees in Liberal Arts and Computer Aided Drafting Technology.
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Herman Weissker
Over the past 50+ years, Weissker continues to represent safety, quality, and integrity. Our customers have come to trust in the partnerships that only decades of successful experience can provide.