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City dataTransportation
Intersection Points
Published by Office of the Chief Technology Officer · Updated 10/26/2026
- Last updated
- 10/26/2026
- First published 02/27/2015
- Update frequency
- Not listed
- Formats
- 5
- CSV, GeoJSON, Shapefile
- Coverage
- District of Columbia
- City in District of Columbia
About this dataset
The dataset contains locations and attributes of intersections created as part of the Master Address Repository (MAR) for the Office of the Chief Technology Officer (OCTO) and participating DC government agencies. The intersection points - MAR is primarily derived from DC Department of Transportation's (DDOT) intersection table in their Street Spatial Database (SSD). Regular at-grade intersections (TYPE = 'REGULAR') as well as overpasses (TYPE = 'OVERPASS'), underpasses (TYPE = 'UNDERPASS') and ramps (TYPE = 'RAMP') are included. The overpasses, underpasses, and ramps are based on street centerlines from DDOT. More information on the MAR can be found at https://opendata.dc.gov/pages/addressing-in-dc. The data dictionary is available: https://opendata.dc.gov/documents/2a4b3d59aade43188b6d18e3811f4fd3/explore. In the MAR 2, the IntersectionPt is called INTERSECTIONS_PT and is primarily based off of street data from DC Department of Transportation's Roads & Highways database. It also features additional useful information such as created date, last edited date, begin date, and more.
Files and access
Links open the official government source
- CSV downloadopendata.dc.govCSV
- GeoJSONopendata.dc.govGeoJSON
- Shapefileopendata.dc.govShapefile
- KMLopendata.dc.govKML
- ArcGIS REST servicemaps2.dcgis.dc.govArcGIS REST
API endpoint: https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Location_WebMercator/FeatureServer/2
Links open outside websites we do not control.
Details
- Publisher
- District of Columbia
- Department
- Office of the Chief Technology Officer
- Listed on
- Open Data DC
- Platform
- ArcGIS Hub site
- State
- District of Columbia
- License
- CC BY
- Views
- 14,521
- Keywords
- District of Columbia, intersection, location, MAR, Master Address Repository, mardata, mardistrict, OCTO, street address, Washington DC
More from District of Columbia
- Intersection PointsOffice of the Chief Technology OfficerThe dataset contains locations and attributes of intersections created as part of the Master Address Repository (MAR) for the Office of the Chief Technology Officer (OCTO) and participating DC government agencies. The intersection points - MAR is primarily derCSVZIPGeoJSONKML+1Updated 10/19/2026
- Points of InterestOffice of the Chief Technology OfficerAlso known as place names. The dataset contains locations and attributes of address alias points, created as part of the Master Address Repository (MAR) for the Office of the Chief Technology Officer (OCTO) and participating DC government agencies. It containsCSVGeoJSONShapefileKML+1Updated 10/27/2026
- Points of InterestOffice of the Chief Technology OfficerAlso known as place names. The dataset contains locations and attributes of address alias points, created as part of the Master Address Repository (MAR) for the Office of the Chief Technology Officer (OCTO) and participating DC government agencies. It containsCSVZIPGeoJSONKML+1Updated 10/20/2026
- Roadway Block IntersectionDistrict Department of TransportationRoads and Highways manages intersections, however they are not singular points; RH creates a series of points - one for each intersecting road at that intersection. For DDOT, it is more useful to have a single intersection point representing the intersection. CSVGeoJSONShapefileKML+1Updated 10/24/2026
- Roadway Block IntersectionDistrict Department of TransportationRoads and Highways manages intersections, however they are not singular points; RH creates a series of points - one for each intersecting road at that intersection. For DDOT, it is more useful to have a single intersection point representing the intersection. CSVGeoJSONKMLZIP+2Updated 10/17/2026
- Roadway Intersection ApproachD.C. Office of the Chief Technology OfficerIntersection Approach Segments are short segments of the route that approach an intersection, in other words, a short section of the road leading up to an intersection. Roads and Highways manages intersections, however they are not singular points; RH creates CSVGeoJSONShapefileKML+1Updated 10/24/2026
- Roadway Intersection ApproachD.C. Office of the Chief Technology OfficerIntersection Approach Segments are short segments of the route that approach an intersection, in other words, a short section of the road leading up to an intersection. Roads and Highways manages intersections, however they are not singular points; RH creates CSVGeoJSONKMLZIP+2Updated 10/17/2026
- Roadway SubBlock IntersectionDistrict Department of TransportationRoads and Highways manages intersections, however they are not singular points; RH creates a series of points - one for each intersecting road at that intersection. For DDOT, it is more useful to have a single intersection point representing the intersection. CSVGeoJSONShapefileKML+1Updated 10/24/2026
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Frequently asked questions
- Who publishes Intersection Points?
- Office of the Chief Technology Officer, part of District of Columbia, publishes this dataset on Open Data DC.
- How often is it updated?
- The publisher does not list a schedule. The last update was on 10/26/2026.
- How do I download it?
- It is available as CSV, GeoJSON, Shapefile, KML. Use the links in Files and access, which open the official government source.
Source: Open Data DC · Last updated 10/27/2026 · Listing only; the data stays with the publisher