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

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The U.S. Capitol Rotunda is a large, domed, circular room located 96 feet in diameter and 180 feet in height located in the center of the United States Capitol on the second floor.
The U.S. Capitol Rotunda is a large, domed, circular room 96 feet in diameter...

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View of the U.S. Capitol Building from above at dusk
In order to ensure the safety of visitors and staff and to preserve the...

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An AOC worker mowing the grass on the grounds of the U.S. Capitol
The roles and responsibilities of the Architect of the Capitol cover an...

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Picture of Richard Hartlage, Partner and CEO of Land Morphology in front of a garden
Learn from Partner and CEO of Land Morphology Richard Hartlage's experiences on...

What's New

Projects

Cannon House Office Building
Status: Planned Building: House Office Buildings

Due to its advanced age, the House of Representatives is in the early planning stages for a top-to-bottom renewal of the Cannon Building. The AOC has assembled a team of in-house experts and consultants who are working with House leaders to define key aspects of the project. Construction for the Cannon Renewal Project is anticipated to begin in 2015.

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The Ulysses S. Grant Memorial
Status: Planned Building: Capitol Grounds

Restoration of the Grant Memorial is expected to begin late fall with the conservation of the bronze sculptures, which includes properly cleaning, repair, full patination, restoration of lost elements, and application of protective coatings of the two large sculptural groups (Artillery and Cavalry), one equestrian statue (Grant), four reclining lions statues, and two relief plaques.

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Status: Completed Building:

Preparations are underway, near 2nd St and Washington Ave SW, for the American Veterans Disabled for Life Memorial (www.avdlm.org). Memorial construction in and around the footprint of the site (from the southwest of Washington Avenue and northeast of 2nd Street SW) will continue through the fall of 2014. Minor street and lane closures will occur as construction work continues. Pedestrians traveling between the Rayburn and Ford House Office Buildings should use the route below. This route will remain in place for the... More »

East Front Plaza Repairs
Status: Completed Building: United States Capitol

AOC is making repairs to expansion joints on the East Front Plaza of the Capitol near the plaza entrance at First St. and East Capitol. The work is expected to be complete by July 2014.

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The Capitol at night.
Status: Completed Building: United States Capitol

On Friday evening, August 22, 2014, the Architect of the Capitol is performing planned maintenance to electrical systems in the Capitol Building. During this work, brief outages of the lights on the Capitol Dome may occur. This work is not related to the Capitol Dome Restoration Project.

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John Adams Building Monumental Door
Status: Completed Building: U.S. Library of Congress

AOC is replacing the original, historic bronze doors of the Library of Congress John Adams Building to be compliant with fire, security and ADA codes. The new door design incorporates cast glass panels mounted within a bronze framework that reference the artistic heritage of the original doors by recreating the original, historic bronze reliefs in kiln-cast glass. The kiln-formed sculptural glass was made from molds taken off the original door sculptures.

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Olmsted Fountain
Status: Completed Building: Capitol Grounds
Olmsted Fountains basins on the East Front Plaza will be cleaned this spring More »
U.S. Supreme Court Building
Status: Completed Building: U.S. Supreme Court

Update: November 4, 2013 — This project has been completed.

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