J. Hartzheim, PE, is a DOT program manager – geodesist at the Wisconsin
Department of Transportation (WisDOT). He is program manager for the state’s
CORS and height modernization programs. Hartzheim conducted his first GPS
survey in 1984.
For the past several years, surveyors in Wisconsin have kept pace with the national trend toward increased use of GNSS for survey positioning. Wisconsin surveyors started adopting GPS technology in the mid-1980s, and the practice has been growing ever since.
In the April 2017 issue of POB, find out how 3D tools played a role in the renovation of the Institute of Civil Engineers headquarters in London. Also, POB releases the results of its 2017 3D Surveying Trends Study.