The District of Columbia

Historic Landmark Elements

Historic Landmark Elements

by DC Office of Planning (DCOP) on 20110106

Keywords
About: Historic Structures, Historical Designation, Historic, Historic Buildings, National Register, Historic Preservation
Taking place at: Washington, D.C., District of Columbia, DC

Abstract

This dataset contains Historic Landmarks (by structure) officially designated by the District of Columbia. This is a consolidated collection of structures with historical significance within the District of Columbia as listed in the "District of Columbia Inventory of Historic Sights". It contains the locations and attributes of buildings, statues, bridges, forts, fountains, & memorials of historical worth. Additional datasets are available of Historic Districts. The same records in this polygon-format dataset are also available in a point-format dataset.

Purpose

This is a spatial dataset of record for the storage, maintenance, and display of historically significant structures within the District of Columbia for planning and management purposes.

Access constraints

None.

Use constraints


Acknowledgment of the DC Office of Planning (DCOP), the DC Office of the Chief Technology Officer (OCTO), and the DC State Historic Preservation Office (HP).
Neither DCOP nor OCTO nor HP make claims as to the completeness, accuracy or content of any data contained herein, or make any representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.

Neither OCTO, OP, or HP make no claims as to the completeness, accuracy or content of any data contained hereon, or make any representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.

Point of contact

David Maloney
in DC Office of Planning

801 North Capitol St, NE # 4000
Washington DC, 20002, USA

phone: 202-442-7600
fax: 202-442-7637
hours: 8:30 am - 5:00 pm

Credits


DC Office of Planning (DCOP)
DC State Historic Preservation Office (HP)

Data accuracy

Accuracy
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. Validated by source and/or responsible agency.

Logical consistency
Data believed to be complete and accurate, subject to change.

Completeness
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. Validated by source and/or responsible agency.

Horizontal positional accuracy
Data believed to sufficiently accurate for planning purposes. Boundaries may not align perfectly with other DC GIS data sets.

Lineage / Sources

  • District of Columbia Inventory of Historic Sites (2004)
    Document, DC State Historic Preservation Office (HP)
    District of Columbia Inventory of Historic Sites (2004)
    by DC State Historic Preservation Office (HP), 07/16/2002
  • Inventory Database 2002
    Database, DC State Historic Preservation Office (HP)
    Inventory Database 2002.mdb
    by DC State Historic Preservation Office (HP), 11/15/2002
  • DC Historic Districts (HistDistPly)
    vector digital data, DC State Historic Preservation Office (HP) DC Office of Planning
    HistDistPly
    by DC State Historic Preservation Office (HP), 05/14/2004
  • DC Public Reservations (Reservations)
    vector digital data, DC Office of Planning (DCOP)
    Reservations
    by DC Office of Planning (DCOP), 11/01/2004
  • Baist Volume Index (1959)
    paper map, Baist's Real Estate Atlas (1959)
    Baist Volume Index (1959)
    by Baist's Real Estate Atlas, 1959
  • Historic Landmarks (LandmrkPly)
    vector digital data, National Capitol Planning Commission (NCPC) National Park Service (NPS) DCGIS
    LandmrkPly
    by National Capitol Planning Commission (NCPC), 02/14/2002
  • Road Boundaries (RoadPly) - Planimetrics
    vector digital data, DCGIS
    RoadPly
    by National Capitol Planning Commission (NCPC), 03/31/2001
  • Orthophotos (1999)
    Orthophotos (1999)
    by DCGIS, 10/31/2001
  • Orthophotos (2002)
    Orthophotos (2002)
    by DCGIS, 01/09/2003
  • Orthophotos (2003)
    Orthophotos (2003)
    by National Geospatial Intelligence Agency (NGA), 11/01/2004
  • Landmarks Inventory Database (LandmarkDb.mdb)
    Database, DC Office of Planning (DCOP)
    Inventory Database (2005)
    by DC Office of Planning (DCOP), 06/30/2005
  • Pictometry
    Pictometry, Pictometry
    Pictometry
    by Pictometry, 06/28/2004
Lineage / Processes

in DC Office of Planning

801 N Capitol St, NE # 4000
Washington DC, 20002, USA

phone: 202-442-7600
fax: 202-442-7637
hours: 8:30 am - 5:00 pm

Phase IV - Spatial Data Validation

Several fields were added to maintain consistency with the DCGIS spatial data model ([OBJECTID], [AID], [WEB_URL], and [UPDATE_DATE]). Two additional fields ([LABEL] and [NR_ELIGIBLE]) were incorporated into the updated dataset. [LABEL] is used to indicate a feature's name on a display or map. [NR_ELIGIBLE] is a flags that indicates whether the feature is eligible for entry in the National Register list.

DCOP and Historic Preservation staff performed a visual validation of the Landmark Areas dataset. Area boundaries were plotted and checked against DRAFT vectorized lot lines (Tax lot / Record lot), as well as planimetric features, as needed. Numerous new Landmark areas and Historic Districts were added to the dataset.

in DC Office of Planning

801 North Capitol St, NE Suite 4000
Washington DC, 20002, USA

phone: 202-442-7600
fax: 202-442-7637
hours: 8:30 am - 5:00 pm

Phase V - Spatial Data Validation

All address points have been validated against the Master Address Repository (MAR) dataset and the current DRAFT Taxlot and Recordlot property boundaries.

Only the first 93 entries from the Inventory of Historic Sites document were validated in this phase, plus updating the attribution of the Landmark Areas / Historic Districts dataset. This constitutes the first major section of the document, "The Federal City". Subsequent document chapters will be processed and validated sequentially.

After the major issues were addressed, Historic Preservation Staff reviewed the Location and names of all landmark structures and sites within the dataset.

Proof maps were generated and changes or updates were noted where appropriate. DC Office of Planning GIS Staff reviewed and prepared the updates.
Schema updated and new landmarks added from 2006 through 2011.

Distribution

Distribution liability
Acknowledgment of the DC Office of the Chief Technology Officer (OCTO), the DC Office of Planning (DCOP) & the DC State Historic Preservation Office (HP).

Distributed by

in DC Office of Planning

801 North Capitol St, NE # 4000
Washington DC, 20002, USA

phone: 202-442-7600
hours: 8:30 am - 5:00 pm

Entity

opgis_OP_HistoricLandmarkElements / DC Office of Planning
Structures with historical value

Attributes

  • FID / ESRI
    Internal feature number.
  • OBJECTID / ESRI
    Internal feature number.
  • NAME / DC Office of Planning
    Name of Structure
  • LABEL / DC Office of Planning
    Placement Label
  • TYPE / Office of Planning
    Signifies Type of Structure
    • ARS / American Revolutionary Statue
    • BRIDGE / bridge
    • CWFS / Civil War Fort Site
    • CWM / Civil War Monument
    • FOUNT / fountain
    • MEM / Memorial
    • MONT / monument
    • NHS / National Historical Site
    • STATUE / statue
    • STEPS / steps
    • WALL / wall
    • PLAZA / plaza
    • Null / generally indicates a building
    •  
  • SSL
    Square Suffix Lot
  • ADDRESS / DC Office of Planning
    Address Description
  • NR
  • NM
  • NHL
  • NHS
  • NHP
  • SHAPE / ESRI
    Feature geometry.
  • EDIT_DATE
  • DESIGNATIO
  • Status
  • DESIGNAT_1
  • ORIG_FID
  • SHAPE_Area / ESRI
    Area of feature in internal units squared.
  • SHAPE_LEN

Metadata

FGDC Content Standards for Digital Geospatial Metadata / FGDC-STD-001-1998 as of 20120514

Provided by
REQUIRED: The person responsible for the metadata information.
in DC Office of Planning

801 North Capitol St, NE # 4000
Washington DC, 20002, USA

phone: 202-442-7600
fax: 202-442-7637
hours: 8:30 am - 5:00 pm