DISCLAIMER The Oregon Department of Transportation and the State of Oregon make no representations, express or implied, as to the accuracy of the information or data contained herein. This information or data is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user. For more information about our files please contact us: Original Files are maintained at: Oregon Department of Transportation Geographic Information Services Unit 555 13th St. NE, Suite 2 Salem, OR 97301 Fax: (503) 986-4249 Voice: (503) 986-3154 Email: odot.maps@odot.state.or.us ---------------------------------------------------------- PLEASE VISIT OUR WEB PAGE FOR MORE INFORMATION Homepage: http://www.oregon.gov/ODOT/maps.shtml Microstation File Homepage: http://www.oregon.gov/ODOT/TD/TDATA/gis/dgnfiles.shtml ---------------------------------------------------------- MICROSTATION FILES MicroStation files may be accessed and downloaded at: http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/county_sheets_dgn/ Our maps are produced using MicroStation Version 8. ---------------------------------------------------------- PROJECTION INFORMATION For MicroStation CAD Files and GIS data. Oregon State Standard transfer - Lambert projection. http://www.odot.state.or.us/tdmappingpublic/help/projection.htm Projection LAMBERT Datum NAD83 Units INTERNATIONAL FEET, 3.28084 (.3048 Meters) Spheroid GRS1980Parameters: 1st standard parallel 43 00 0.000 2nd standard parallel 45 30 0.000 central meridian -120 30 0.00 latitude of projection's origin 41 45 0.000 false easting (meters) 400000.00000 (1,312,335.958 Feet) false northing (meters) 0.00000 ------------------------------------------------------------ CITY MAPS MicroStation file city level information http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/MicrostationResources/MicrostationV_8/Configuration/ref/GISU_Layers.html City Map Series: Consists of all 242 incorporated cities in the state. These files were digitized from USGS 1:24,000 quads. To view the City Map, please refer to the appropriate County Sheet that the city resides: http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/county_sheets_dgn/ .bdr file extension denotes the border file for each city. http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/dgn_borders/city/ City limits, state, county, and urban growth boundary files are in the State Transportation Base Map directory: http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/statewide_reference_dgn/ Need more information on these files and their maintenance. Phone: (503) 986-3154 Email: odot.maps@odot.state.or.us ------------------------------------------------------------ COUNTY MAPS MicroStation files may be accessed from: http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/county_sheets_dgn/ MicroStation file county level information http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/MicrostationResources/MicrostationV_8/Configuration/ref/GISU_Layers.html FILE NAMES: co_index.dgn A graphic index of this map series. File naming convention is based on the county name and the sheet number within that county. The county name is the first four letters of the county; the sheet number is that which shows up on this index. For example, the file name for sheet 2 of Crook County would be croo2.dgn. This centerline series is arranged by county sheet no. The linework originated from USGS 1:100,000 dlgs. The urban enlargement frames were digitized from 1:24,000 USGS quads (NAD 27). The 1:100,000 linework was then edge matched to the 1:24,000 linework at these frames. These enlargements are available in greater detail in the form of our urban enlargement citymap series. .dgn file extension denotes county maps .bdr file extension denotes the border file for each county sheet. http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/dgn_borders/county/ Need more information on these files and their maintenance. Phone: (503) 986-3154 Email: odot.maps@odot.state.or.us ------------------------------------------------------------------ STATE WIDE MAPS MicroStation files may be accessed from: http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/statewide_reference_dgn/ .dgn file extension denotes state maps CITY LIMITS: (citylim.dgn) A statewide coverage file containing city limits including annexations. (1:24,000). The linework includes lines and polygons. COUNTY BOUNDARIES: (newcn.dgn) Linework from USGS 1:100,000 dlgs. Includes county names. MISCELLANOUS BOUNDARIES: (miscbndy.dgn) A statewide coverage file containing public lands including: National Forests, State Forests, State Parks, Indian Reservations, state and federal preserves, etc. The data originated from USGS 1:100,000 dlgs, and has been modified from various sources (Nat. Forest Svc. maps, State Park Boundary maps, etc.). The linework includes lines and polygons. The text for these boundaries are in the County sheet Map Base. STATE OF OREGON BOUNDARY: (newst.dgn) Linework from USGS 1:100,000 dlg. URBAN GROWTH BONDARIES: (cityugb.dgn) A statewide coverage file containing Urban growth boundaries (1:24,000 scale). The boundaries were digitized from data supplied by cities and counties. The linework includes lines and polygons. Need more information on these files and their maintenance. Phone: (503) 986-3154 Email: odot.maps@odot.state.or.us ----------------------------------------------------------------- QUADRANGLE MAPS To view the Quad Map, please refer to the appropriate County Sheet that the quad resides: http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/county_sheets_dgn/ Quad Maps are maintained for the Portland, Eugene, and Salem areas .bdr file extension denotes the border file for each quadrangle. http://www.oregon.gov/ODOT/TD/TDATA/gis/docs/dgn_borders/quad/ ------------------------------------------------------------------ MICROSTATION RESOURCES Files may be accessed from: http://www.oregon.gov/ODOT/TD/TDATA/gis/dgnfiles.shtml#Microstation_User_Resources ---------------------------------------------------------------- COPYRIGHT QUESTIONS? Please contact the ODOT GIS Unit. Phone: (503) 986-3154 Email: odot.maps@odot.state.or.us