Spicer Group Inc2018Raster digital dataGeographic Extent: Saginaw County, MI, covering approximately 815 square miles. Dataset Description: Saginaw County, MI 2016 LiDAR project called for the Planning, Acquisition, processing and derivative products of LIDAR data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LIDAR Specification, Version 1.0. The data was developed based on a horizontal projection/datum of Michigan State Plane South, NAD83, international feet and vertical datum of NAVD1988 (GEOID12A), international feet. LiDAR data was delivered in RAW flight line swath format, then processed to create Classified LAS 1.2 Files formatted to 991 individual 5000 foot X 5000 foot tiles. Corresponding Intensity Images and Bare Earth DEMs tiles were created with the same 5000 foot X 5000 foot tile schema. Breaklines were produced in Esri geodatabase format. Ground Conditions: LiDAR was collected in spring of 2015, 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, Spicer Group Inc established a total of 120 Land Cover control points (52 QC checkpoints, 68 calibration control points) which were used to calibrate the LIDAR to known ground locations established throughout the Saginaw County, MI project area. 28 additional check points were surveyed by Kucera for the accuracy check of the initial acquisition. these 28 points have been added to the NVA LiDAR and DEM accuracy reports.The purpose of these lidar data was to produce high accuracy 3D hydro-flattened Digital Elevation Model (DEM) with a 2 foot cell size. The purpose of these lidar data was to produce high accuracy 3D hydro-flattened Digital Elevation Model (DEM) with a 2 foot cell size. The bare earth LiDAR point cloud data and breaklines were used to create hydro-flattened DEMs as necessary.CONTRACTOR: Spicer Group Inc Lidar data were acquired by Kucera International Inc. All follow-on processing was completed by the prime contractor.2015032420150417ground conditionCompleteNone planned-84.3995620600000-83.667611750000043.571665060000043.116841880000013114641.52113310000.000755000.000590000.000NoneElevation dataLidarRaster DEMNoneMichiganMISaginaw CountyNo restrictions apply to this data.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.Spicer Group ImcNathan Shepherdmailing and physical

6600 Peachtree Dunwoody Road, Building 400, Suite 108

AtlantaGA30328USA678-585-6501 ex304678-585-6501nathans@spicergroup.comMonday through Friday 8:00 AM to 5:00 PM (Eastern Time)If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours.MicroStation Version 8; TerraScan Version 16; TerraModeler Version 16; GeoCue Version 2014.1.21.1; ESRI ArcGIS 10.3; Windows 7 Operating System;Global Mapper V.17.1 \\Proj2015\122278SG2015 - Saginaw County LiDAR 1.66 TBData cover the entire area specified for this project.These raster DEM's files include bare earth points and breakline data. A visual qualitative assessment was performed to ensure data completeness. TIF files with 2 foot pixel resolution were exported using Terra Model software. The output DEM files remained in the original 5,000 foot x 5,000 foot tiles with 2 foot pixel resolution The DEM NVA was tested using 68 independent surveys located in open terrain. The survey check points were distributed throughout the project area. The 68 independent check points (40 Spicer Group & 28 Kuchera) were surveyed using the closed level loop technique. Elevations from the classified lidar surface were measured for the x,y location of each check point. Elevations interpolated from the lidar surface were then compared to the elevation values of the surveyed control. The NVA RMSE was computed to be 0.178 international feet (5.43 cm). AccuracyZ has been tested to meet 19.6 cm Nonvegetated Vertical Accuracy at 95 percent confidence level using (RMSEz * 1.9600) as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASPRS Guidelines. The DEM NVA RMSE @ 95% confidence level was computed to be 0.349 international feet (10.64 cm). The DEM VVA was tested using 44 independent surveys located in vegetated areas. The survey check points were distributed throughout the project area. The 44 independent check points were surveyed using the closed level loop technique. Elevations from the classified lidar surface were measured for the x,y location of each check point. Elevations interpolated from the lidar surface were then compared to the elevation values of the surveyed control. The VVA RMSE was computed to be 0.242 international feet (7.38 cm). AccuracyZ has been tested to meet 29.4 cm Vegetated Vertical Accuracy at the 95th percentile as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASPRS Guidelines. The DEM VVA RMSE @ the 95th percentile was computed to be 0.399 international feet (12.16 cm). 0.1064 The DEM NVA was tested using 68 independent surveys located in open terrain. The survey check points were distributed throughout the project area. The 68 independent check points (40 Spicer Group & 28 Kuchera) were surveyed using the closed level loop technique. Elevations from the classified lidar surface were measured for the x,y location of each check point. Elevations interpolated from the lidar surface were then compared to the elevation values of the surveyed control. The NVA RMSE was computed to be 0.178 international feet (5.43 cm). AccuracyZ has been tested to meet 19.6 cm Nonvegetated Vertical Accuracy at 95 percent confidence level using (RMSEz * 1.9600) as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASPRS Guidelines. The DEM NVA RMSE @ 95% confidence level was computed to be 0.349 international feet (10.64 cm). 0.1216 The DEM VVA was tested using 44 independent surveys located in vegetated areas. The survey check points were distributed throughout the project area. The 44 independent check points were surveyed using the closed level loop technique. Elevations from the classified lidar surface were measured for the x,y location of each check point. Elevations interpolated from the lidar surface were then compared to the elevation values of the surveyed control. The VVA RMSE was computed to be 0.242 international feet (7.38 cm). AccuracyZ has been tested to meet 29.4 cm Vegetated Vertical Accuracy at the 95th percentile as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASPRS Guidelines. The DEM VVA RMSE @ the 95th percentile was computed to be 0.399 international feet (12.16 cm). Spicer Group Inc2018RasterSpicer Group Inc2018External HDD2015032420150417ground conditionMI_SaginawCo_2015_LiDAR_DEMThis data source was used for accurate surface in raster DEM format.Spicer Group Inc2018Raster DEMSSaginaw, MISpicer Group Inc.external harddrive2015032420150417ground conditionMI_SaginawCo_2015_LiDAR_DEMThis data source was used for accurate surface in raster DEM format.Hydro Flattened Raster DEM Process: Class 2 LiDAR in conjunction with the hydro breaklines were used to create a 2 foot Raster DEM. Using automated scripting routines within ArcMap, an ERDAS Imagine IMG file was created for each tile. Each surface is reviewed using ESRI ArcMAP to check for any surface anomalies or incorrect elevations found within the surface.MI_SaginawCo_2015_LiDAR_DEMMI_SaginawCo_2015_LiDAR_DEM2018Hydro Flattened Raster DEMsSpicer Group IncNathan Shepherdmailing and physical

6600 Peachtree Dunwoody Road, building 400, Suite 108

AtlantaGA30328USA678-585-6501 ex304678-585-6501nathans@spicergroup.comMonday through Friday 8:00 AM to 5:00 PM (Eastern Time)If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours.Rasterpixel25002500State Plane Coordinate System 1983211342.143.66666666666666-84.3666666666666641.513123359.580052490.0coordinate pair22international feetNorth American Datum of 1983Geodetic Reference System 806378137298.257222101North American Vertical Datum of 19880.01international feetExplicit elevation coordinate included with horizontal coordinates20181223Spicer Group ImcNathan Shepherdmailing and physical

6600 Peachtree Dunwoody Road, Building 400, Suite 108

AtlantaGA30328USA678-585-6501 ex304678-585-6501nathans@spicergroup.comMonday through Friday 8:00 AM to 5:00 PM (Eastern Time)If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours.FGDC Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998None.None.None.UnclassifiedNONE