Illinois Height Modernization Program (ILHMP)

LIDAR data existing or in development for Illinois. Additional Illinois LIDAR Acquisition Projects are proposed for counties along the Illinois and Mississippi Rivers. Contact Shelley Silch at USGS.

Height Modernization efforts are promoted by the National Geodetic Survey (NGS); such work is designed to support the establishment of accurate and reliable heights using Global Positioning System (GPS) technology in conjunction with traditional leveling, gravity, and modern remote sensing information.

Illinois Height Modernization Program Details

Benchmarks, Datums, and Leveling Efforts

Monuments, CORS, and RTK Networks

 

Illinois Digital Elevation Data

 

Great Lakes Region Height Modernization Consortium

Real Time Network (RTN) Workshop

November 10, 2009 in Rockford, Illinois

 

RTN Workshop Flyer

RTN Workshop Agenda

B. Herzog, ISGS: Welcome, ILHMP Introduction

R. Shields, NGS: National Height Modernization Update

C. Pearson, NGS: Introduction to NGS CORS and OPUS

B. Henning, NGS: Background on Real Time Positioning

B. Henning, NGS: NGS and Real Time Positioning

Project Steering Committee and Affiliated Agencies

Project participants included: Illinois State Geological Survey, Illinois Department of Transportation, Illinois Department of Natural Resources, Office of Water Resources, Illinois Professional Land Surveyors Association, Illinois State Water Survey, and the US Geological Survey.

Project Funding

The ISGS received nearly $300,000 to fund Year 1 project activities with assistance from Congressman Timothy Johnson through the NGS Height Modernization Program.

The ISGS has received nearly $725,000 to fund Year 2 project activities through the NGS Height Modernization Program, championed by Congressman Timothy Johnson and Raymond LaHood/ Congressman Aaron Schock.