Height Modernization

Height Modernization Program Active Network

July 26, 2017

The WisDOT Geodetic Survey Unit has developed a Wisconsin Continuously Operating Reference Stations (WISCORS) Network consisting of permanent GPS sites, which provide real-time correctors to mobile users. Mobile users properly equipped to take advantage of these correctors can survey in the field to the 2-cm accuracy level in real-time.

Height Modernization Program Passive Network

The Wisconsin Height Modernization Program (HMP) is designed to improve the density of geodetic control stations listed in the National Spatial Reference System (NSRS) with accurate orthometric heights (elevations). The Wisconsin Dept. of Transportation (WisDOT), in cooperation with the National Geodetic Survey (NGS), initiated a program in 1998 to improve the height data throughout the State.

Great Lakes Regional Height Modernization Forum coming to Madison

August 12, 2008

The Wisconsin DOT in cooperation with the National Geodetic Survey is hosting a gathering of experts to discuss regional height modernization issues on September 24-25.

Wisconsin’s Height Modernization Program moving ahead in high gear

July 26, 2005

WisDOT/NGS cooperative program could complete improved height data by 2008.