View
223
Download
1
Category
Tags:
Preview:
Citation preview
Illinois Height Modernization
Sheena K. Beaverson
Program GoalsIllinois Geodetic Control
Establish comprehensive network of survey benchmarks.
Airborne Light Detection and Ranging (LiDAR)Provide stewardship for existing data.Acquire new data.
Steering CommitteeIllinois Department of TransportationIllinois State Geological Survey
Illinois Department of Natural ResourcesIllinois Natural History SurveyIllinois State Archaeological SurveyIllinois State Water Survey
United States Geological SurveyUSDA Natural Resources Conservation Service
ILHMP: Start of Year 1In Year 1, Illinois was in the bottom 10 states,
with respect to height information.LiDAR and derivative elevation data non-existent.
3 counties acquired, data access limited.Estimate 50% of all known benchmarks
destroyed. Closer to 60%, plus revision of 30% known elevations
Multiple vertical datums in use (40+). Adjustments to North American Vertical Datum
(NAVD88) complex.
ILHMP: Project Years 1-3• Years 1-3: funded by federal
appropriations. Supported by Congressman Johnson, Congressman
LaHood, Congressman Shock, Senator Durbin and also NGS.
Year 1: 2008-2009 funded $300,000 Year 2: 2009-2010 funded $725,000 Year 3: 2010-2011 funded $800,000
Total of $1.9M in funding directly to ISGS. IDOT a project partner.
ILHMP: Project Years 4-8Year 4: Federal Highway Administration,
State Planning and Research (SPR) funding.Year 4: 2011-2012 funded $3,500,000
Option to renew up to 4 times at same rate. Funding extends through June 30, 2016.
Total of $17.5M directly to IDOT.Intergovernmental Agreement from IDOT to
ISGS.
ILHMP: Project Years 6Year 6: $885,000 funds for airborne LiDAR
Illinois Department of Resources Office of Water Resources
Kankakee County, IllinoisWill County, Illinois
Intergovernmental Agreements with ISGS.Made possible because of new UIUC policy
offering flexibility in establishing vendor contracts.
ILHMP: Project Years 1-8Total of $20M in funding, plus:
LiDAR from IDOT, IDNR-OWR, FEMA, NRCS, USGS, USACE, Illinois Counties.
$50,000 pilot project from USGS for Boone and Winnebago County for LiDAR data stewardship.
IDOT in-kind services.
Project Milestones
ILHMP: Geodetic LevelingProgram Years 1-5
1,515 new benchmarks367 existing benchmarks1,705 miles of leveling
Program Year 6 (current)installation of 671 new138 existing benchmarks700 miles of geodetic
leveling
Illinois Geodetic Control
Project Milestones
Statewide LiDAR: What do we have?Available for:
green, brown counties
blue river corridorsAcquired for:
tan countyContracted Spring
2014:gray counties
Statewide LiDAR: How current is it?Acquired over 11 years.
Illinois LiDAR01/2008 – 04 counties01/2012 – 22 counties07/2013 – 70 counties10/2014 – 81 counties
Update map: 2014 acquisitions
Statewide LiDAR: How is data quality?3DEP Quality Level 3
Majority of data3DEP Quality Level 2
lowest parameters4 counties, 2 projects
3DEP Quality level 2 highest parameters1 county, 2 projects
Update map: 2014 acquisitions
Statewide LiDAR: Who acquired it?Acquired by 8 vendors.
AeroMetric Quantum Spatial
Continental MappingMerrick & CompanyPhoto ScienceSanbornSurdexWilson & CompanyWoolpert
Update map: 2014 acquisitions
Statewide LiDAR: What did it cost?Contracts funded by:
IDOTIDNR-OWRISGS (ILHMP)CountiesFEMANRCSUSACEUSGS
Update map: 2014 acquisitions
Advice to other States, Challenges
Statewide LiDAR: Who can contract?Attempting to acquire and process data with
monies tied to 1-year fiscal period is risky.IDOT, ISGS ,USGS contracting mechanisms in place.4-8 months to set up agency agreements, transfer
funds.8-10 months to establish contract for well-defined
project with selected vendor.All of the above tied to state or federal fiscal year,
paperwork deadlines, competitive advertisement rules. Inability to complete paperwork has caused loss of funding. Rainy or early spring can pre-empt a project.
Statewide LiDAR: Who can contract?ISGS LiDAR and Photogrammetry Retainers
2013-2014 ISGS ran competitive process to select up to 2 vendors to serve on retainer. Retainer contracts can be renewed for up to three 1-year periods. Surdex Quantum Spatial
Each retainer limited to: No more than $1M in projects in a single fiscal year. No more than $500,000 per project (formerly
$100,000).Best option for utilizing short-term monies.
ILHMP: Year 6Our ranking has improved dramatically.
Top 15 states for % of state covered by LiDAR. A rough estimate.
15th of 49 states for number of leveled heights. Publishing of Year 5 data along Mississippi River
will move us into top 10, by # of leveled heights within the state. 2012 NGS poster at the ESRI International User
Conference
Number of Leveled HeightsStates listed by:
NGS Funded Y/NAlphabetically
Could this information be published by NGS annually, ranked by # vertical marks?Want to illustrate
program impacts over time.
ILHMP: Progress MapsLiDAR Status map series currently in
development
Companion series for geodetic leveling, similar to Minnesota maps.Benchmarks by decadeLast reported, by decadeWho reported (state, local, county, private)Vertical, horizontal, 3D
2014 GPS on Bench MarksNGS bench mark priorities
… for Illinois
Could NGS show estimated Geoid accuracy 5 years ago? 2010? Comparison would be helpful.
Sheena K. BeaversonIllinois State Geological Survey
sbeavers@illinois.edu217-244-9306
Illinois Natural Resources Geospatial Data Clearinghouse
• Keywords “Illinois” and “Height”
USGS 30meter DEMPecatonica River, Winnebago County Illinois
LiDAR Bare Earth DEMPecatonica River, Winnebago County Illinois
Recommended