Office Building, Dirksen Senate Office Building, Hart Senate Office Building, Senate Underground Garage, Daniel Webster Page Residence, Cannon House Office Building, Longworth House Office Building, Rayburn House Office Building, East and West House Underground Garages, Ford House Office Building, Thomas Jefferson Building, John Adams Building, James Madison Memorial Building, U.S. Botanic Garden (USBG) Conservatory, USBG Administration Building, Capitol Power Plant Main Boiler Building, Capitol Power Plant East Refrigeration Plant, Capitol Power Plant Old Generator Building, U.S. Supreme Court Building and the Thurgood Marshall Federal Judiciary Building. All are considered multiuse heritage assets and assigned a cost on the Balance Sheet and presented under General Property, Plant and Equipment, Net. In general, historic buildings and structures are added or withdrawn from the AOC's portfolio through congressional action.
Stewardship Lands and Cultural Landscapes
The AOC-administered stewardship lands encompass more than 570 acres of grounds. This includes Capitol Square, the approximately 295 acres of grounds immediately surrounding the U.S. Capitol Building and designed by noted American landscape architect Frederick Law Olmsted. In addition, the AOC’s cultural landscapes include the Summerhouse, Senate
AOC Heritage Assets Condition Rating Scales CONDITION RATING SCALE
HERITAGE ASSETS Poor
Fair Good Excellent
HISTORIC PAPER RECORDS Poor
Fair Good Excellent
PHOTOGRAPHIC RECORDS Poor
Fair Good Excellent
Park (Squares 632, 633, 634, 680, 681, 682, 683, 684, 685, 722 and 723), Senate office building sites and courtyards (Squares 686 and 725), House office building sites and courtyards (Squares 581, 635, 689 and 690), East and West House Underground Garages (Squares 637 and 691), Botanic Garden and National Garden (Square 576), Bartholdi Park (Square 578), USBG Administration Building site (Square 578), Union Square, Thomas Jefferson Building site (Square 730), John Adams Building site (Square 761), James Madison Memorial Building site (Square 732), U.S. Supreme Court Building site (Square 728), Marshall Building site (Square 722) and memorial trees planted on the U.S. Capitol Grounds. In general, units of stewardship land are added or withdrawn from the AOC's portfolio through congressional action.
Memorial trees are living heritage assets planted to honor distinguished citizens, groups and national events. Memorial trees are added through congressional action. For more information about the AOC’s memorial trees go to
www.aoc. gov/trees. An inventory of the memorial trees as of September 30, 2019 and 2018 follows:
AS OF
MEMORIAL TREES Memorial Trees
10/01/18 147
AS OF
9/30/19 CHANGE 145
(2) GENERAL
CONDITION Good
DEFINITION
Asset exhibits, or is in danger of, structural damage or loss. Requires major conservation or repair to achieve structural and aesthetic integrity
Asset is structurally sound but requires major conservation to improve aesthetic integrity Asset is structurally sound and retains aesthetic integrity. Requires routine maintenance or minor conservation
Asset is new, or has been conserved as close to its original condition and appearance as possible, or a conservator has determined that no conservation treatment is needed
Records are not yet stored in archives or their preservation is endangered Records are preserved in secure and stable conditions in archives Records are accessioned and placed in acid-free containers Records are fully processed and stored in archival folders with all major preservation problems addressed
PRIORITY
High Medium Low
No Treatment Needed
High Medium Low
No Treatment Needed
Film photographs are not in secure storage or digital files are not identified, readable or backed up Records are in secure storage, subject is identified and image is backed up
Negatives are properly housed and inventoried or digital files are batch captioned and backed up in multiple locations
Negatives are stored off-site in archival conditions or digital files are fully captioned with images backed up in multiple locations with routine data migration
126 Section III • Financial Information High Medium Low
No Treatment Needed
ARCHITECT OF THE CAPITOL
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