Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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The United States Capitol Building is located in a 58-acre park that was landscaped by Frederick Law Olmsted during the period 1874-1892.
The United States Capitol Building is located in a 58-acre park that was...

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A virtual Map of Capitol Hill from above
View a map of the U.S. Capitol and other buildings and grounds cared for by the...

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Painted Portrait of Benjamin Henry Latrobe
Benjamin Henry Latrobe was hired by President Jefferson in 1803 to fill the...

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The Capitol Crypt, which now houses statuary and exhibitions, was once used as an informal storage space where bicycles were parked, seen here circa 1900.
The term “crypt” has long referred to a space beneath the main floor of a...

What's New

Projects

Capitol Dome Restoration
Status: Ongoing Building: United States Capitol

The Dome of the U.S. Capitol Building, one of America’s great symbols of freedom, needs additional restoration as part of an on-going multi-phased program.

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Brumidi Conservation Work
Status: Ongoing Building: United States Capitol

The U.S. Capitol's Brumidi Corridors are undergoing an extensive restoration as part of the Brumidi Corridors Restoration Project.

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Plaster repairs underway at the U.S. Capitol
Status: Ongoing Building: United States Capitol

The AOC has identified areas throughout the Capitol that contain historic paint colors or decoration that need restoration. In many of these areas the plaster has cracked under the stress and weight of multiple paint layers, a result of decades of repainting wall and ceiling surfaces. These areas have been marked for paint analysis; a process that allows the AOC to record what finishes were used in the past before repairing the wall. This allows the area to be restored to its original appearance. Once an area has been documented, the walls must be stripped down to a stable surface that... More »

Capitol Windows
Status: Ongoing Building: United States Capitol

Repairs to the exterior side of the Capitol Building windows located on the House side will be performed between September 2, 2014 through mid-November 2014. The repairs are focused on the exterior side of the windows and some minor work on the interior side will take place during non-operational hours to avoid disruptions to the space occupants. A scaffold system will be used to reach each window and perform the repairs. Once the repairs to a block of windows have been completed, the scaffold towers will be relocated to the next set of windows requiring a similar access to complete the... More »

West Front Staging Area
Status: Ongoing Building: Capitol Grounds

In support of the Dome Restoration Project trucks deliver equipment and supplies to the East and West Fronts of the U.S. Capitol between 6 a.m. and 3 p.m. Flagmen direct pedestrians to use the sidewalk during the delivery process for safety. Additionally, a staging area has been established on the northwest lawn of the U.S. Capitol for the duration of the project.... More »

Generator Progress May 2014
Status: Ongoing Building: U.S. Library of Congress

Work is underway at the northwest corner of the Library of Congress John Adams Building to replace the existing emergency generator with one that provides more than twice the power.

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Work Photography of a Worker repairing the Hart Roof at sunset.
Status: Ongoing Building: Senate Office Buildings

Construction activities for the repair and replacement of the Hart Senate Office Building’s roof and skylights are underway. In support of this effort, a portion of the sidewalk along C street, between the Hart and Dirksen Senate Office Buildings, will be closed through the summer of 2015. The sidewalk closure is required for a material hoist on the side of the building that will facilitate delivery of construction materials to the roof. Signage will be posted to assist pedestrian traffic affected by the sidewalk closure. Additionally, in August 2014 the AOC will begin installing... More »

Masons work on Olmsted Terrace Steps
Status: Ongoing Building: United States Capitol

AOC is undertaking a multi-year project to repair, clean and preserve the Olmsted Terrace masonry walls around the Capitol Building. The current phase project includes the dismantling, repair, reinstallation and comprehensive restoration of the Capitol's north approach walls (near the Senate doors), pedestal, steps and curb. Due to safety considerations, the sidewalk and steps located on the north approach to the Capitol Building will be closed until September 30, 2014. Barricades and signage will also be placed at various... More »

Capitol Power Plant
Status: Planned Building: Capitol Power Plant
The Architect of the Capitol (AOC) completed a Long Term Strategic Energy Plan for the Capitol Power Plant (CPP), which identified cogeneration as the preferred solution for achieving energy savings, reducing environmental impacts, and maintaining a reliable source of chilled water and steam for Congress and the Supreme Court. The Cogeneration Plant at the CPP will use natural gas in a combustion turbine in order to efficiently generate both electricity and heat for steam. More »
The Capitol Reflecting Pool is located at the eastern end of the National Mall in Washington, DC.
Status: Planned Building: Capitol Grounds

Capitol Grounds will drain, inspect and clean the Capitol Reflecting Pool, as well as complete concrete patching of problem areas.

The pool will be drained on November 3, 2104 and will be refilled prior to November 8, 2014.

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