CATALOG OF AVAILABLE
DIGITAL SPATIAL DATA
The following describes the data available through the GIS Office for dissemination to the public:
A. 2005 Ortho-Topo
This is comprised of orthographically corrected aerial photographs and planimetric-topographic data for the entire county. It was produced by contract vendor from an over-flight in the spring of 2005. The orthophotos are divided into about 1700 individual tiles to cover Washington County in a TIFF and MrSID image format. The planimetric-topographic data is also tiled in the same manner and is available in GIS or CAD format. A digital file of the grid layout is available free of charge. A hardcopy map of the grid is available for $8.00. The following is a summary of the ortho-photo and planimetric-topographic data:
| Formats: | Orthophoto: |
TIFF or MrSID natural color |
Plan-Topo: |
DWG or ESRI Geodatabase | |
| Photo: | MrSID county-wide | |
| Composites: | MrSID county-wide highly compressed | |
| MrSID county-wide 3’ pixel | ||
| MrSID by planning region: Hancock, Clear Spring, Hagerstown, Smithsburg, Boonsboro, Gapland | ||
| Tile size: | 2500’ x 3500’ = 200 acres = 0.3 sq. mi. Total number of tiles covering the whole county: 1700+/- |
|
| Scale: | 1” = 100’ (1 : 1200) | |
| Projection: | Maryland State Plane | |
| Units: | Feet | |
| Datum: | NAD83, NAVD88 | |
| Pixel Size: | 6” | |
| Contour: | 2’ | |
| File size: | Orthophoto: |
102 MB +/- TIFF, 6 MB +/- MrSID |
Plan-topo: |
1 MB +/- DWG, 2-4 +/- GDB | |
| Topo Features: | contours, building footprint (>100 sq. ft.), edge of road, driveways, parking areas, railroads, forest, streams, ponds, swamp, ditches, fences, retaining walls, and bridges. | |
B. 2000 Ortho-Topo
This is comprised of orthographically corrected aerial photographs and planimetric-topographic data for the entire county, except for central Hagerstown. It was produced by contract vendor from an over-flight on March 18, 2000. The ortho-photos are divided into 470 individual tiles to cover Washington County in a TIF image format. The planimetric-topographic data is also tiled in the same manner and is in a CAD format. A digital file of the grid layout is available free of charge. A hardcopy map of the grid is available for $8.00. The following is a summary of the ortho-photo and planimetric-topographic data:
| Formats: | Orthophoto: |
TIFF v6.0 (.TIF) gray scale by tile |
Plan-Topo: |
AutoCAD (.DWG) by tile | |
| Tile size: | 4400’ x 6800’ = 687 acres = 1.07 sq. mi. Total number of tiles covering the whole county: 470 |
|
| Scale: | 1” = 200’ (1: 2400) | |
| Projection: | Maryland State Plane | |
| Units: | Feet | |
| Datum: | NAD83, NAVD88 | |
| Pixel Size: | 1’ | |
| Contour: | 4’ | |
| File size: | Orthophoto: |
30 MB +/- |
AutoCAD: |
1 MB +/- | |
| Topo Features: | contours, building footprint (>200 sq. ft.), edge of road, centerline of road, tree line, streams, and bridges | |
C. Other digital spatial data:
The GIS Office maintains other layers available for licensing. These are updated on a delayed basis; official changes in any of these areas are not immediately reflected in these GIS layers. They are available in GIS and CAD format. The GIS format is ESRI Geodatabase. The CAD format is AutoCAD DWG.
Zoning
Comprehensive Plan – Land Use Plan, includes: Urban and Town Growth Area
boundaries, Rural Villages, Special
Planning Areas
Priority Funding Areas
Enterprise Zones
Rural Legacy Easements and Boundaries
Agricultural Preservation Districts and Easements
Notes:
- License agreement must be signed for any sale
- Media may be CD, DVD or floppy disk, depending on size of order
- All prices as listed, no volume discounts
- Formats as listed, no custom conversions
- No discount on repurchase of previously purchased products
- No automatic notice of updates
- Available products are subject to change without notice
- No sales of partial tiles
- Data free to government agencies with signed license agreement
- Government contractors must have agency sign license to obtain free data
- Allow 2 weeks for processing
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