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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Alley Frontage Lines

    Metadata Updated: May 21, 2025

    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.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date April 30, 2024
    Metadata Updated Date May 21, 2025

    Metadata Source

    Harvested from DC data

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 30, 2024
    Metadata Updated Date May 21, 2025
    Publisher Department of Buildings
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=ea23361fc16b409cb944b0e64fd7c973&sublayer=1
    Data First Published 2015-02-27T21:09:45.000Z
    Data Last Modified 2025-05-16T19:08:30.000Z
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id f76d5a7a-d6e9-47cb-96f1-b5021c4197f5
    Harvest Source Id b05f955a-65d6-4288-9558-15a5ebc74e36
    Harvest Source Title DC data
    Homepage URL https://opendata.dc.gov/datasets/DCGIS::alley-frontage-lines
    License https://creativecommons.org/licenses/by/4.0
    Metadata Type geospatial
    Old Spatial -77.1137,38.8204,-76.9106,38.9900
    Source Datajson Identifier True
    Source Hash f37a64e8a91dd3cc390724f2d04e220592f474e2fd98e12b5a52300b6ce836f0
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -77.1137, 38.8204, -77.1137, 38.9900, -76.9106, 38.9900, -76.9106, 38.8204, -77.1137, 38.8204}

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