Woolpert 20201209 Raster digital data Product: 2.5-foot bare-earth digital elevation models (DEMs) in ERDAS IMG format. Geographic Extent: Approximately 18,069 square miles across the following counties in western Indiana: Benton, Boone, Carroll, Clay, Clinton, Crawford, Daviess, Dubois, Fountain, Gibson, Greene, Hendricks, Jasper, Knox, Lake, LaPorte, Lawrence, Martin, Monroe, Montgomery, Morgan, Newton, Orange, Owen, Parke, Perry, Pike, Porter, Posey, Pulaski, Putnam, Spencer, Starke, Sullivan, Tippecanoe, Vanderburgh, Vermillion, Vigo, Warren, Warrick, White. Dataset Description: The Indiana Statewide Lidar 2017 B17 West task called for the planning, acquisition, processing, and production of derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.7 meters. Project specifications were based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.2. The data was developed based on a horizontal datum/projection of NAD83 (HARN) State Plane Indiana West Zone (FIPS 1302), US Survey Feet, and a vertical datum of NAVD88 (GEOID12B), US Survey Feet. DEM data was delivered as ERDAS IMG files formatted to 20,074 individual 5,000-foot x 5,000-foot tiles. Tiles were named according to the Indiana Statewide Ortho-Lidar tile index. Ground Conditions: Lidar was collected from March 9, 2017 through April 11, 2020 while no snow was on the ground and rivers were at or below normal levels. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Woolpert established 234 ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. An additional 724 independent accuracy checkpoints (417 NVA points and 307 VVA points), were collected and used to assess the vertical accuracy of the data. These checkpoints were not used to calibrate or post process the data. This project will support the state of Indiana and the Natural Resources Conservation Service (NRCS) in Indiana. USGS Contract No. G16PC00022 Task Order No. G17PD00269 CONTRACTOR: Woolpert. Raster File Type = IMG Bit Depth/Pixel Type = 32-bit float Raster Cell Size = 2.5-Feet Interpolation or Re-sampling Technique = Triangulated Irregular Network Required Vertical Accuracy = 19.6 cm NVA 20170309 20200411 ground condition Complete None planned -88.174722 -86.195351 41.768459 37.755827 2655000 3195000 2375000 915000 None Model Raster DEM Remote Sensing Elevation Data Lidar None Indiana Benton County Boone County Carroll County Clay County Clinton County Crawford County Daviess County Dubois County Fountain County Gibson County Greene County Hendricks County Jasper County Knox County Lake County LaPorte County Lawrence County Martin County Monroe County Montgomery County Morgan County Newton County Orange County Owen County Parke County Perry County Pike County Porter County Posey County Pulaski County Putnam County Spencer County Starke County Sullivan County Tippecanoe County Vanderburgh County Vermillion County Vigo County Warren County Warrick County White County No restrictions apply to this dataset. None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data. Woolpert prepared the original data as set forth in the Scope of Services, in accordance with reasonable care and due diligence as set forth in this Agreement, however, due to the easily alterable nature of electronic media, files, documents, and other deliverables, Woolpert makes no warranties, either expressed or implied, with respect to the accuracy, completeness, merchantability, or fitness for any particular purpose, including, but not limited to, use of any/all data as described within this metadata file, by any user of this data. Any use will be at the end-user's sole risk. Microsoft Windows 10 Version 1803 (Build 17134.1304); ArcMap 10.7; ArcCatalog 10.7; TerraScan ver. 20; TerraModeler ver. 20; LP360 v2019.1.30.4. Data covers the entire area specified for this project. This dataset was validated using a combination of commercial lidar processing software, GIS software, and proprietary programs to ensure proper formatting and loading prior to delivery. The lidar data is visually inspected for completeness to ensure that are no void areas or missing data. This data set was produced to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10-cm RMSEz Vertical Accuracy Class. Woolpert 20201209 Lidar point cloud Dayton, OH Woolpert Digital data 20170305 20180421 ground condition Indiana Statewide Lidar 2017 B17 West - Lidar Point Cloud Data This dataset includes airborne lidar data point cloud data acquired as part of this task order. This data was used to create the required derivative lidar products. Woolpert 20201209 Vector digital data and tabular digital data Dayton, OH Woolpert Digital data 20170331 20170602 ground condition Indiana Statewide Lidar 2017 B17 West - Surveyed Control Points This dataset includes ground control and QA/QC checkpoints collected as part of this task order. These points were used in the calibration and accuracy testing of the lidar point cloud and DEM data. Woolpert 20201209 Vector digital data Dayton, OH Woolpert Digital data 20201209 ground condition Indiana Statewide Lidar 2017 B17 West - Breaklines This dataset includes hydro breaklines collected as part of this task order. Woolpert 20201209 Vector digital data Dayton, OH Woolpert Digital data 20201209 ground condition Indiana Statewide Lidar 2017 B17 West - Data Extent The data extent was created in shapefile format. Woolpert 20201209 Vector digital data Dayton, OH Woolpert Digital data 20201209 ground condition Indiana Statewide Lidar 2017 B17 West - Tile Index The tile index created in shapefile format. The tiles have a size of 5,000-feet x 5,000-feet. Tile names were derived from Indiana Statewide Ortho Lidar grid. This index was used to create the tiled deliverables for this project. Hydro-Flattened Digital Elevation Models (DEMs): Class 2 (ground) lidar points in conjunction with the hydro breaklines as well bridge breaklines were used to create a 2.5-foot, 32-bit floating point hydro-flattened bare-earth raster DEM. Using automated scripting routines within ArcMap, an ERDAS .IMG file was created for each tile. Each surface is reviewed using Global Mapper to check for any surface anomalies or incorrect elevations found within the surface. Indiana Statewide Lidar 2017 B17 West - Lidar Point Cloud Data Indiana Statewide Lidar 2017 B17 West - Surveyed Control Points Indiana Statewide Lidar 2017 B17 West - Breaklines Indiana Statewide Lidar 2017 B17 West - Data Extent Indiana Statewide Lidar 2017 B17 West - Tile Index 20201209 Raster Pixel 2000 2000 State Plane Coordinate System 1983 1302 0.99996667 -87.08333333 37.5 2952750.00000000 820208.33333333 row and column 2.5 2.5 survey feet North American Datum of 1983 (HARN) Geodetic Reference System 80 6378137.0 298.257222101 North American Vertical Datum of 1988 0.01 feet Explicit elevation coordinate included with horizontal coordinates 20201209 Woolpert mailing and physical

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