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Illinois Height Modernization Program by Sheena K. Beaverson

The Illinois Height Modernization Program aims to acquire and preserve geodetic data using LiDAR technology. It supports bench mark preservation and data sharing, managed by state agencies and experts. Through geodetic leveling, monuments are protected and reported for public use and preservation efforts. Recovery reporting and survey monument preservation initiatives promote awareness and maintenance of bench marks across Illinois. Stakeholders collaborate for successful completion of the program, ensuring a robust and up-to-date statewide network of survey bench marks.

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Illinois Height Modernization Program by Sheena K. Beaverson

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  1. Illinois Height ModernizationProgramSheena K. BeaversonIllinois State Geological Survey

  2. Illinois Height Modernization Goals • Airborne Light Detection and Ranging (LiDAR) • Provide stewardship for existing data. • Acquire new data. • Illinois Geodetic Control • Establish statewide network of survey bench marks. • Promote bench mark preservation efforts.

  3. Project Lead Agencies • Illinois Department of Transportation • Amy Eller, Co-Principal Investigator • Jeff Emrick, Surveys and Photographic Services • Illinois State Geological Survey • Sheena Beaverson, Co-Principal Investigator • Michael Blumhoff, PLS, Leveling Manager • Janet Holden, LiDAR Data Manager

  4. Steering Committee • Illinois Department of Natural Resources • Illinois Natural History Survey • Illinois State Archaeological Survey • Illinois State Water Survey • United States Geological Survey • USDA Natural Resources Conservation Service • Federal Emergency Management Administration

  5. Airborne Light Detection and Ranging Data High Resolution Elevation Data

  6. ILHMP: Project Goals • Maintain partnerships for acquiring new LiDAR. • Establish data sharing agreements for existing LiDAR. • QA/QC newly acquired data • Resolve outstanding issues before contracts closed. • Share standards and specifications. • Set uniform requirements for deliverables. • Manage and provide access to data.

  7. USGS 30 meter DEMPecatonica River, Winnebago County Illinois

  8. LiDAR Bare Earth DEMPecatonica River, Winnebago County Illinois

  9. ILHMP: LiDAR Status • Green, brown counties and rivers available • Tan, Gray counties acquired, in QA/QC or processing. • Illinois Lidar • 87 of 102 counties available by end of 2015.

  10. LiDAR Derivatives, St. Clair Co. Digital Surface Models Digital Terrain Models • County data sets via Illinois Natural Resources Geospatial Data Clearinghouse

  11. Survey Monument Preservation “The value of control information or boundary marking is jeopardized by any disturbance to a monument, so protection is key.” -Wisconsin State Cartographer’s Office

  12. Geodetic Leveling • Research existing monuments and scout their condition. • Select route to pass through, or install new, monuments. • Install new monuments and take precise measurements. • Verify data, submit to national database. • National Spatial Reference System (NSRS). • Large amount of funding, and a lot of time to complete. • Select vendor, contract, field work, data processing, data submission, and publication by NGS.

  13. Illinois Geodetic Leveling • Green: fieldwork complete. • Data published by NGS. • Orange: fieldwork in progress. • Note short spur lines. • Purple: planned for Fall 2015. • Total by Summer, 2015 • 3,500 up-to-date bench marks • 282 horizontal marks elevated

  14. Recovery Reporting • Condition of marks in NSRS can be reported by any person to NGS via On-line Form or DS World (free software).

  15. Recovery Reporting • Download datasheet, note location and description. • Travel to location, take observation notes and photos. • A pointless exercise unless you report your findings! • Even with a robust statewide network of monuments, it’s current condition is largely unknown due to lack of recoveries or failure to report recoveries.

  16. Illinois Recovery Reporting • Bench mark LC0397 set in 1959 • Reported Good Condition 1986 by NGS • Bench mark KB0541 set in 1969 • Reported Good Condition 1989 by Power Squadron • What is the condition of these bench marks?

  17. Illinois Recovery Reporting • Bench mark reporting and preservation. • LC0397

  18. Illinois Recovery Reporting • Bench mark reporting and preservation. • LC0397: reported Mark Not Found 2013

  19. Illinois Recovery Reporting • Bench mark reporting and preservation. • KB0541

  20. Illinois Recovery Reporting • Bench mark reporting and preservation. • KB0541: reported Good Condition 2013

  21. Recovery Reporting • Recovery reports are useful, even if the bench mark condition is still as previously reported. • Carry knowledge forward over years or decades. • Revise location description if buildings, trees, roadways, or railroad tracks have been removed or altered. • Upload photos of condition and surroundings to verify. • Identify as a candidate for statewide or regional efforts • Replace destroyed witness posts • Rehab deteriorating bench marks • Campaigns for GPS Occupations or Geodetic Leveling • Inspire preservation by communicating “I’m still here!”

  22. Survey Monument Preservation • “The mark you save could be your own.” • - Sheena Beaverson, Illinois Height Modernization

  23. Keywords “Illinois” and “Height”

  24. Sheena K. BeaversonIllinois State Geological Surveysbeavers@illinois.edu217-244-9306Illinois Natural Resources Geospatial Data Clearinghouse

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