Talbot County, MD
Countywide Digital Mapping Project
– Primary objectives were to provide the County with several Geospatial Data Deliverables which will be used in their GIS to manage and enhance their Emergency Management Center and Planning and Zoning Department. This project involved flying Talbot, Dorchester and Wicomico Counties (approximately 1,500 sq.mi.) with 6” Pixel ADS40 Imagery for seamless color digital orthoimagery in both True Color and Color Infrared. ADS40 L1 stereo imagery was also produced to update Talbot’s planimetric data as well as supplement existing 2003 LiDAR data with breaklines in order to produce countywide 2’ Contours. The incorporated towns and other communities were flown with AGPS aerial film to produce .25’ pixel imagery conducive to 50-scale mapping applications. Approximately 80 different angles of low-altitude Color Oblique Imagery was also flown for all towns and delivered in TIFF format. AXIS was contracted to update the County’s existing planimetric data, street/road centerline data, address point data, parcel data and emergency response map books.
In addition, AXIS was contracted to develop a nautical navigation layer, develop an ArcIMS website, implement ArcSDE and maintain their parcel and address data for a period of 5 years.

The following is a general list of Scope of Work for
Talbot County, MD:

  • 2006 – 2011 / 60% Complete
  • ADS40 Multispectral Aerial Imagery
  • Color AGPS Aerial Photography
  • Color Digital Oblique Aerial Imagery
  • Ground Control & NGS Monumentation
  • High Resolution Film Scanning
  • Softcopy Aerotriangulation
  • 6” Pixel Seamless True-Color & CIR Digital Orthophotography in TIFF/TFW and MrSID
  • Softcopy Stereo Update of 100 scale planimetrics
  • Softcopy Stereo Collection of Breaklines for LiDAR DTMs
  • Generate Countywide 2’ Contours from Enhanced LiDAR DTMs
  • Update Parcel Geodatabase through COGO Methods from Plats & Deeds
  • Update Address Point Geodatabase Reconciled to Verizon’s ESL Database
  • Update Address Ranging and Street Names of All Public Roads in
  • Geodatabase Reconciled to the County’s MSAG
  • Update and Print 150 County Map Books and Wall Map
  • Create a Nautical Navigation Geodatabase for County’s GIS
  • Develop and Install a County ArcIMS Website
  • Install ArcSDE
  • Update and Maintain County’s Street Centerline, Address Points and Parcel data for a period of 5 Years.
  • Installation and training