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Photograph of people walking outside on a Self-Guided Tour of Capitol Hill
Visitors can tour many highlights on Capitol Hill without registering.

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The Architect of the Capitol’s challenge is unique – maintaining aging, iconic buildings; adapting state-of-the-art technology; and increasing responsiveness to environmental, security and safety considerations in a rich historical setting.
The Architect of the Capitol's challenge is unique – maintaining aging, iconic...

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​Knowing that the U.S. Capitol Rotunda would be closed to visitors to prepare...

Projects

Exterior of the Russell Senate Office Building.

Status: Ongoing

Building: Senate Office Buildings

The Russell Senate Office Building is the oldest of the three Senate Buildings and a wonderful example of the Beaux Arts style of architecture. However, over time, weathering and age have diminished many of the fine details of the facility's exterior stone, allowed water to penetrate into the building, impaired the building's energy efficiency and caused operational and... More »




Status: Ongoing

Building: U.S. Supreme Court

This restoration project entails cleaning, repairing and restoring the Vermont marble of the cheek walls on either side of west steps, and the North, South and East Façades of the Supreme Court Building. The stone will be cleaned to remove general soil, black gypsum crusts, biological deposits, and copper stains. The mortar and sealants in the joints of the marble will be replaced and the non-functional bird deterrent system will be... More »




Status: Ongoing

Building: U.S. Supreme Court

Starting this spring, restoration work will begin on the façade of the Thurgood Marshall Federal Judiciary Building. The first phase of the project involves the installation of netting at select locations of the building. Subsequent phases will include the removal of the building's veneer and replacement of damaged stone panels on the building's façade.

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Status: Ongoing

Building: U.S. Supreme Court

The Thurgood Marshall Federal Judiciary Building (TMFJB) is undergoing a renovation of the facility's parking garage. The project includes repair of water infiltration problems, replacement of interior finishes, crack repairs, a new traffic surface topping, and upgrades to the lighting and sprinkler systems.

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Scaffold on the Senate side of the U.S. Capitol Building.

Status: Ongoing

Building: United States Capitol

A multi-phased project designed to address deferred maintenance, extend the life expectancy of the deteriorated stone and to replace missing elements of the U.S. Capitol Building.

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Status: Ongoing

Building: Capitol Grounds

This captivating monument is in the midst of a meticulous conservation effort. In 2016, disfiguring corrosion was removed; over 150 castings of missing or broken pieces, from swords to chain links, were reintegrated into the monument. The marble plinths were refurbished, with joints repointed and stains removed. This work on the bronze components and marble pedestals allow viewers to again see the subtle details of the original sculpture.

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Status: Planned

Building: Capitol Power Plant

At the Capitol Power Plant we are planning for the future. Through rigorous analysis of various energy technologies and broad consultation with leading experts, we have explored options for achieving future energy savings, reducing environmental impacts and maintaining a reliable source of chilled water and steam for the 23 facilities on Capitol Hill we serve, including the U.S. Capitol, the Library of Congress and the Supreme Court of the United States. We have identified cogeneration as the preferred solution for our energy future.

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Photo of sidewalk on Capitol Campus.

Status: Completed

Building: Capitol Campus

The Architect of the Capitol continues to improve the accessible pathway for the Capitol campus.

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Status: Completed

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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