About Geospatial Technologies and information

U.S. MapGeospatial technologies and information at Iowa DOT encompasses many disciplines, from linear referencing to remote sensing. Iowa DOT uses Oracle Spatial to store most geospatial data. Using database central software neutral approach Iowa DOT has the flexibility in development of geospatial systems. Iowa DOT leverages other software vendor’s technologies; Intergraph GeoMedia, ArcGIS Server, Quick Terrain Modeler, Geocortex Essentials to name a few. 
Iowa is one of the few states with a full Linear referencing System (LRS) on all public roads and statewide LiDAR. Iowa’s LRS gives the ability to locate with many methods, like mile point, and translate from one method to another. The LRS also stores accurate traveled way centerlines of over 114,000 miles of public road. 


Eric Abrams

Spatial and GIS team leader
Phone: 515-239-1949
E-mail: eric.abrams@dot.iowa.gov
  • Project management
  • GIS consultant coordination
  • Oracle/Oracle spatial development
  • Customer relations
  • GIS and spatial technologies
  • Iowa linear referencing system
  • Web Development

Tom Samson

Information Technology Specialist
Phone: 515-239-1920
E-mail: Thomas.Samson@dot.iowa.gov
  • Imagery
  • TerraShare image system
  • GIS software support
  • GIS software expert
  • Training
  • ArcGIS Server Administrator