State Projects

City of Franklin, TN Digital Orthos, LiDAR, & GIS Services

This project entailed four phases: (1)aerial imagery and digital orthophotography, (2)LiDAR acquisition, digital elevation model (DEM) generation, and 2-foot contour creation, (3)stereocompilation / feature extraction, and (4)additional services (GIS and geodatabase design and development). 3001 provided the City of Franklin with a comprehensive aerial survey, GPS ground control survey, aerotriangulation, 3-inch and 6-inch digital color orthophotography, and a DEM of the City, the designated Urban Growth Boundary (UGB), and expansion areas. We integrated the resulting imagery and geospatial data developed into the City’s GIS. 3001 collected LiDAR data to support elevation modeling, stereo models for 3D analysis, feature extraction, and geodatabase design, development, and implementation. 3001 performed feature classification, including land use/land cover classification and analysis. All geospatial data were furnished in the Tennessee State Plane Coordinate System (FIPSZone 4100), NAD83 (90 Epoch), and NAVD88 in U.S. survey feet. • LiDAR data acquisition, FEMA quality DEMs, and 2-foot contours • GPS ground control survey and aerotriangulation • Digital orthophotography at 3-inch and 6-inch GSD • Photogrammetric mapping (building footprints, roadway centerlines, pavement edges, driveways, sidewalks, parking lots, tree lines, fences, canals, water boundaries, manholes, tunnels, and bridges) • Digital imagery & LiDAR fusion, feature classification, and geoDB development

This project demonstrated 3001's ability to deploy new technology to develop GIS data to meet NMAS and NSSDA standards. We provided the customer with an affordable product in a timely manner, LIDAR and Z/I DMC over a large project area at multiple scales, and validation of the DMC as a superior approach to film.

St. Johns River Water Management District Digital Orthophotography

3001 has worked with St. Johns River Water Management District (SJRWMD) on four projects over the past two years, providing orthophotography and geographic information system (GIS) services to support digital ortho quarter quad (DOQQ) updates, emergency response and flood mitigation, and impervious surface classification.

In 2003, 3001 collected 2.5-foot pixel imagery using our Leica ADS40 over an area of 660 square miles around the Indian River Lagoon area of SJRWMD.

In early 2004, 3001 provided 1-meter pixel digital color and color-infrared imagery in both 8- and 16-bit color formats over 12,400 square miles within SJRWMD. The imagery was used to update the District's DOQQ database, which serves as a base map for their GIS. We orthorectified the digital imagery and created 856 DOQQs. Deliverables included 8-bit natural color orthophotos and 16-bit color infrared 4-band stacks (near-infrared, red, green, and blue) in GeoTIFF format. All DOQQs met or exceeded National Map Accuracy Standards for 1:12,000 maps and were delivered with FGDC-compliant metadata. 3001 also delivered Level-0 12-bit panchromatic nadir, forward, and backward imagery, along with aircraft orientation data, of the entire area. This data was processed to Level-1 by 3001 for stereo-viewing by SJRWMD. All products were delivered 3 months ahead of schedule and were approved by the District before the original scheduled delivery date.

Our third project with SJRWMD involved providing 2-foot pixel digital imagery of flooding in the Middle and Upper St. Johns River Basins after the 2004 hurricane season. The imagery was used by the District to provide flood protection, assist with management decisions, aid municipalities, respond to flooding complaints, provide validation data for multiple modeling efforts, and assess environmental impacts. 3001 flew 2,900 square miles of the District using the ADS40 to provide 8-bit natural color and color-infrared digital orthophotography. The imagery met National Map Accuracy Standards for a 1:4,800 map scale.

3001's 2005 project with the SJRWMD was to assess the feasibility of automated classification to create surfaces from 16-bit ADS40 data, and to test the success of the process on a defined project area. Using the 16-bit 4-band stack provided to the District one of our 2004 projects, we derived a surface water layer and an impervious surface layer. The project area specified comprised 55 3.75-minute quarter quad image tiles along the coast of Brevard, Indian River, and St. Lucie counties. Surface water features in the project area include Atlantic Ocean, Indian River Lagoon, canals, ponds, marshes, and drainage ditches. Impervious surface features include paved areas and building roofs. The results of this study were very positive with 90% of paved surfaces being labeled as impervious and 80% of building roofs being labeled impervious. Problems arose with sandy areas being labeled as impervious, however this would be mitigated by masking out identified areas of sand by overlaying a classified image.

Flight lines used were identical to those used to support National Aerial Photography Program (NAPP) imagery and were flown at 20,000 feet AGL for 1-meter imagery and 15,800 feet AGL for 2-foot imagery . Prior to flights, 3001 performed a review of existing DOQQs to determine the applicability of photo-identifying control points after the flights in lieu of expensive and time consuming panel placement. We chose to acquire 30% more control than was absolutely necessary to augment the customer's ability to QA/QC data deliverables, also saving time and effort. Data captured were well within the USGS specification (an average of 2-3 pixels of displacement) for DOQQs.

NYSDOT Digital Orthophotography

The New York State Department of Transportation (NYSDOT) contracted with VARGIS, LLC and 3001, Inc. to provide digital orthophotography and related services, including ground control survey, imagery acquisition, airborne global positioning systems (ABGPS), aerotriangulation, digital elevation model (DEM) production, and digital orthophoto production. The project area consists of select regions within New York State, such as Niagara Falls and the I-590 corridor in Rochester, NY. For Niagara Falls, we acquired imagery at 0.9-foot pixel resolution to generate a 1-foot pixel product. For Rochester, NY, we acquired imagery at 0.15-foot (1.8-inch) pixel resolution to generate a 0.25-foot (3-inch) pixel product.

Services and Deliverables:

  • Flight Mission Planning
  • Ground Control Survey
  • Airborne GPS
  • Digital Aerial Imagery Acquisition - panchromatic, pan-sharpened color, and color-infrared (CIR)
  • Digital Elevation/Terrain Model (DEM/DTM) Data Collection
  • LiDAR Acquisition & Processing
  • Digital Orthophotography Production
  • Planimetric/Topographic Mapping
  • Quality Assurance/Quality Control (QA/QC)

The image on the top is 0.25-foot (3-inch) pixel resolution, whereas, the resampled image on the bottom is 1-foot pixel resolution. These images were captured in Rochester, NY along the I-590 corridor.

The image on the top is 1-foot pixel resolution, whereas, the resampled image on the bottom right is 2-foot pixel resolution. These images were captured over Niagara Falls.

Mid-Region Council of Governments (MRCOG) Middle Rio Grande River

3001 teamed with Bohannan Huston, Inc. (BHI) to provide LiDAR, digital orthophotography, and digital terrain models (DTMs) for the Mid-Region Council of Governments (MRCOG) Middle Rio Grand River. 3001 provided photo ground control, aerial survey, and aerotriangulation (AT) services for the production of high-resolution (1-foot pixel), true-color, digital orthoimagery, the production of DTMs, and planimetric mapping for selected areas for use in a Geographic Information System (GIS). 3001 generated the data using LiDAR and photogrammetry and conformed to FEMA's Flood Hazard Mapping Program: Guidelines and Specifications for Flood Hazard Mapping Partners. Additionally, all products provided by 3001 met or exceeded the American Society of Photogrammetry and Remote Sensing (ASPRS) Standards for the production of maps at the appropriate scale. 3001 collected LiDAR data using the Leica ALS50 scanner and digital imagery using the Z/I DMC sensor to generate digital color imagery for MRCOG. 3001 captured 1-foot color imagery, with a pixel resolution of 0.9-feet at an NMAS map scale of 1" = 1,900'. The project area comprised approximately 1,500 square miles.

Services and Deliverables:

  • Ground Control Survey
  • Digital Aerial Imaging Collection
  • DTM Data Collection
  • LiDAR Acquisition & Processing
  • Planimetric Mapping
  • QA/QC

To remain within budget/schedule and provide all three image formats, 3001 used the Z/I Digital Mapping Camera (DMC) turnkey digital camera system that delivers large-scale images with high geometric resolution. BHI received post-processed datasets (natural color, near-infrared, and black and white) generated from the DMC software, just days after flight completion. The data were seamlessly downloaded into BHI's ImageStation softcopy photogrammetry system for immediate processing. The customer received three datasets for the price of one.