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CreateMosaicDataset \\gisfile\GISstaff\ga2cogis2gissql01.sde Lidar2021_HEDEM PROJCS["NAD_1983_2011_StatePlane_Illinois_East_FIPS_1201_Ft_US",GEOGCS["GCS_NAD_1983_2011",DATUM["D_NAD_1983_2011",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",984250.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-88.33333333333333],PARAMETER["Scale_Factor",0.999975],PARAMETER["Latitude_Of_Origin",36.66666666666666],UNIT["Foot_US",0.3048006096012192]] # # None #
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DBO.Lidar2021_HEDEM
Server=gissql01; Service=sde:sqlserver:gissql01; Database=cogis; User=gisadmin; Version=dbo.DEFAULT
ArcSDE Connection
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1207214.437994
1650350.425327
1845266.425327
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Projected
GCS_NAD_1983_2011
Linear Unit: Foot_US (0.304801)
NAD_1983_2011_StatePlane_Illinois_East_FIPS_1201_Ft_US
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C:\Users\gjohnson\AppData\Local\ESRI\rasterproxies\DBO.Lidar2021_HEDEM
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20221214
14054900
20221214
14054900
Greg Johnson
Will County
Sr. GIS Analyst
815.740.4701
302 N Chicago Street
Joliet
IL
60432
U.S.
gjohnson@willcountyillinois.com
20221214
ArcGIS Metadata
1.0
Greg Johnson
Will County
Sr. GIS Analyst
815.740.4701
302 N Chicago Street
Joliet
IL
60432
U.S.
gjohnson@willcountyillinois.com
Contact Spatial Will County
Contact Will County
TIFF
Contact Will County
Contact Will County
Will County, IL - Bare Earth DEM (2022)
Lidar2021_HEDEM
2022-01-01
1.0
Will County, IL
Will County
Joliet, IL
raster digital data
Will County - Hydro-Enforced DEM
2022
This image layer represents the original hydro enforced, Digital Elevation Model developed by Kucera in fall 2021.
Will County, Illinois; Hydro Enforced DEM
Greg Johnson
Will County
Sr. GIS Analyst
815.740.4701
302 N Chicago Street
Joliet
IL
60432
U.S.
gjohnson@willcountyillinois.com
Will County
Illinois
2022
mapping
Unclassified points
hydro-flattening
Vegetation points
Digital Surface Model (DSM)
hydro-enforced
Building points
LAS
Grid
Bare Earth
Model keypoints
IMG
LiDAR
Digital Terrain Model (DTM)
Digital Elevation Model (DEM)
Intensity return
Contour
Ground points
point cloud
First Return
Reserved points
Lidar
Will County
DEM
Hydro Enforced
Will County provides the geographic data "as is". This organization makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. Also, this organization makes no warranty, either expressed or implied, regarding the condition of the product or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these files have been processed successfully on computers at this organization, no warranty is made by this organization regarding the use of these data on any other system, nor does the fact of distribution constitute or imply such a warranty.
Contact Will County
<span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>Please review the Terms of Open Geo-Spatial Data License posted on this website: </span><a href='https://www.willcountyillinois.com/County-Offices/Administration/GIS-Division/Data' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>https://www.willcountyillinois.com/County-Offices/Administration/GIS-Division/Data</a><span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>.</span>
Ground condition
2021-01-01
-88.266178
-87.520847
41.197951
41.732524
Data is projected in the State Plane Coordinate System Illinois East. Horizontal datum is NAD83. Vertical datum is NAVD88. Units of measure are the U.S. Foot. Vertical datum – North American Vertical Datum of 1988 Units – U.S. Foot.
Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388
1
-88.266711
-87.516493
41.732898
41.195128
Kucera International
The hydro-enforced DEM is created within the project area. The breaklines and DEM used were verified against LIDAR.
The DEM has been checked to ensure complete coverage within the project boundary.
Processing of mapped waterbodies so that lakes and reservoirs are level and so that streams and rivers flow downhill with elevations removed from the tops of selected drainage structures (bridges and culverts) so as to depict the terrain under those structures. Hydrobreaklines produced under the same "Lidar Byproduct" project were used to create this hydro-enforced DEM. Specifically, ponds over 1 acre in size and creeks/rivers wider than 8 feet are included in the generation of this product.
This data is derived from 2021 Will County DEM and supplement with hydro-enforced hydrobreaklines. The horizontal positional accuracy of the hydro-enforced DEM is dependent upon the original quality of the source DEM and hydro-enforced breaklines from which it was derived.
This data is derived from 2021 Will County DEM and supplement with hydro-enforced hydrobreaklines. The vertical positional accuracy of the hydro-enforced DEM is dependent upon the original quality of the source DEM and hydro-enforced breaklines from which it was derived.
The Existing hydro-flattened DEM is updated with hydro breaklines to generate a hydro-enforced DEM using Global Mapper software.
2022-01-01
DEM, BREAK2
DEM1
Elevation information is assigned to the new hydro breaklines collected.
2022-01-01
BREAK1
BREAK2
The resulting DEM is exported as 2500' x 2500' tiles in GeoTIFF format. These tile files are identifiable by the .tif file extension.
2022-01-01
DEM1 , TLDEF
DEM2
LiDAR data provided by Will County was used as the source data for the hydrobreakline collection.
2021-01-01
None
LIDAR
Starting with the existing 2021 hydro breaklines provided by Will County, additional hydrobreaklines are collected are collected through heads-up digitizing to fulfill the specification for streams/rivers greater than or equal to 8ft in width between bank bottoms & ponds/lakes greater than or equal to one acre.
2022-01-01
LIDAR, BREAK
BREAK1
Existing hydrographic breaklines were provided by Will County.
LiDAR Data
BREAK
1.0
Will County
None
None
vector digital data
Ground condition
2021-01-01
Existing bare earth DEM (hydro-flattened) derived from Spring 2021 aerial LiDAR provided by Will County.
LiDAR Data
DEM
1.0
Will County
None
None
raster digital data
Ground condition
2021-01-01
Hydro breaklines for the purpose of hydro enforcement are collected through heads-up digitizing using LiDAR.
Hydro breaklines
BREAK2
1.0
Kucera International, Inc.
vector digital data
Ground condition
2022-01-01
The tile definition defines discreet non-overlapping rectangular areas used as cut lines to break up the large classified LiDAR dataset into smaller, more manageable data tiles. Each tile is 2500' x 2500' in dimension and projected in State Plane Coordinate System Illinois East.
Tile Definition
TLDEF
1.0
Kucera International. Inc.
vector digital data
Ground condition
2022-01-01
EPSG
8.2.10(10.3.1)
2
1
0
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Band_1
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