Alley Frontage Lines
Alley widths, street frontages, were captured during the vector property effort and reside in their own feature class. 99% of the time, these features should be coincident with the square boundary. The exceptions to this are internal alley’s that might be overlaid by a tax lot. They were captured largely to enable continuity within each square. Alley Polygon does not exist. They could be created with this data by using an automated routine which searches linear feature of the Record, Tax and Parcel Lots feature classes where Line_Classification = 3, 4 and 6, then turning these selected lines into poly’s, another method would be clipping a square boundary with the tax and record lots.
Resources
7 resources available
-
ArcGIS GeoService
ARCGIS GEOSERVICES REST API -
CSV
CSV -
File Geodatabase
ZIP -
GeoJSON
GEOJSON -
KML
KML -
Shapefile
ZIP -
ArcGIS Hub Dataset
WEB PAGE
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| contactPoint |
{
"fn": "DCGISopendata",
"@type": "vcard:Contact",
"hasEmail": "mailto:gisgroup@dc.gov"
}
|
| description | <div style='text-align:Left;'><div><div><p><span>Alley widths, street frontages, were captured during the vector property effort and reside in their own feature class. 99% of the time, these features should be coincident with the square boundary. The exceptions to this are internal alley’s that might be overlaid by a tax lot. They were captured largely to enable continuity within each square. Alley Polygon does not exist. They could be created with this data by using an automated routine which searches linear feature of the Record, Tax and Parcel Lots feature classes where Line_Classification = 3, 4 and 6, then turning these selected lines into poly’s, another method would be clipping a square boundary with the tax and record lots.</span></p></div></div></div> |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"accessURL": "https://maps2.dcgis.dc.gov/DCGIS/rest/services/DCGIS_DATA/Property_and_Land_WebMercator/FeatureServer/1",
"mediaType": "application/json"
},
{
"@type": "dcat:Distribution",
"title": "CSV",
"format": "CSV",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/ea23361fc16b409cb944b0e64fd7c973/csv?layers=1",
"mediaType": "text/csv"
},
{
"@type": "dcat:Distribution",
"title": "File Geodatabase",
"format": "ZIP",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/ea23361fc16b409cb944b0e64fd7c973/filegdb?layers=1",
"mediaType": "application/zip"
},
{
"@type": "dcat:Distribution",
"title": "GeoJSON",
"format": "GeoJSON",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/ea23361fc16b409cb944b0e64fd7c973/geojson?layers=1",
"mediaType": "application/vnd.geo+json"
},
{
"@type": "dcat:Distribution",
"title": "KML",
"format": "KML",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/ea23361fc16b409cb944b0e64fd7c973/kml?layers=1",
"mediaType": "application/vnd.google-earth.kml+xml"
},
{
"@type": "dcat:Distribution",
"title": "Shapefile",
"format": "ZIP",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/ea23361fc16b409cb944b0e64fd7c973/shapefile?layers=1",
"mediaType": "application/zip"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"accessURL": "https://opendata.dc.gov/datasets/DCGIS::alley-frontage-lines",
"mediaType": "text/html"
}
]
|
| identifier | https://www.arcgis.com/home/item.html?id=ea23361fc16b409cb944b0e64fd7c973&sublayer=1 |
| issued | 2015-02-27T21:09:45.000Z |
| keyword |
[
"Cadastral",
"DC",
"DC",
"DOB",
"District of Columbia",
"Land",
"Lot",
"Property",
"Square",
"Washington DC",
"alley frontage"
]
|
| landingPage | https://opendata.dc.gov/datasets/DCGIS::alley-frontage-lines |
| license | https://creativecommons.org/licenses/by/4.0 |
| modified | 2026-05-23T09:51:11.000Z |
| publisher |
{
"name": "Department of Buildings"
}
|
| spatial | -77.1137,38.8204,-76.9106,38.9900 |
| theme |
[
"geospatial"
]
|
| title | Alley Frontage Lines |
