Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Mile-Markers for System 1 Roads: Indiana, 2012

2006. Indiana Department of Transportion, Business Information and Technology Systems, GIS Mapping. MILE_MARKERS_SYSTEM1_INDOT_IN is a point shapefile that contains locations of all mile-markers on System 1 roads in Indiana, provided by personnel ...

2. Highways: Iowa, 1993

1993. Jim Giglierano, Mike Bounk, Xingzhi Chen. This coverage contains arcs representing the major primary and secondary highways in the state of Iowa. The data was originally obtained from the I...

3. System 1 Bridges: Indiana, 2012

2006. Indiana Department of Transportation, Business Information and Technology Systems, GIS Mapping. BRIDGES_SYSTEM1_INDOT_IN is a point shapefile that contains locations of all system 1 bridges in Indiana, provided by personnel of Indiana Departme...

4. Freeway Names: Detroit, Michigan, 2014

2014. Freeway Name Labels (large and small scale).

5. Philadelphia Streets - Highway Sections: Philadelphia, 2016

2016. The City of Philadelphia has migrated metadata for this data set to the City-wide Metadata Catalog. For any questions about the migration and admin...

6. Philadelphia Streets - Highway Subsections: Philadelphia, 2016

2016. The City of Philadelphia has migrated metadata for this data set to the City-wide Metadata Catalog. For any questions about the migration and admin...

7. Highways: Indiana, 2004

2004. Indiana Department of Transportation. HIGHWAYS_INDOTMODEL is a line shapefile showing the Interstate, US, and State Highways in Indiana. This file is a subset of the Indiana Statewide T...

8. Interstate Highways: Iowa, 2004

2004. Casey J Kohrt. This coverage contains arcs representing the Interstate highways in the state of Iowa. The data was originally obtained from the Iowa Dept. of Tran...

9. Roads, 2012: Minnesota

2014. Minnesota Department of Transportation (MnDOT). This dataset represents road centerlines for all public roads within the state of Minnesota. The roads are broken from intersection to intersection...

10. Road Centerlines - Local and Other Roads: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the Sta...

11. Interstate Highways: Washington, D.C.

2015. District of Columbia GIS Program. Street Centerline Segments. A single line representing each street in the District They follow the general trend of the street and do not deviate d...

12. Interstate Highway System: Iowa

2016. Iowa Department of Transportation. Thematic map displaying the Interstate Highway System information for the centerline road segments in the State of Iowa.

13. National Highway System: Iowa

2016. Iowa Department of Transportation. Thematic map displaying the current National Highway System (NHS) for the centerline road segments in the State of Iowa.

14. Road Centerlines - Interstates: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the Sta...

15. Road Centerlines - Routes: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the Sta...

16. MNDNR Administered State Forest Roads: Minnesota

2017. Minnesota Department of Natural Resources (MNDNR). Roads administered by the Commissioner of Natural Resources to provide access to lands administered by the Division of Forestry. These roads are ge...

17. Highway Jurisdiction: Cook County, Illinois

2015. Cook County GIS Department and Cook County. This line dataset contains roads under Cook County, Illinois jurisdiction. The MAINT attribute is NTrueN for roads maintained by the County. The da...

18. National Highway System: Washington, D.C.

2015. District of Columbia GIS Program. Streets designated as part of the National Highway System (NHS).

19. Street Centerlines: Hennepin County, Minnesota

2015. Hennepin County GIS. This dataset contains the street centerlines of roadways in Hennepin County in the Metro Regional Centerline (MRCC) standard format. It is primaril...

20. Road Centerlines - US Routes: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the Sta...