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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
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The United States Capitol Dome, symbol of American democracy and world-renowned architectural icon, was constructed of cast iron more than 150 years ago. The restoration project consisted of repairing more than 1,000 cracks to make the Dome watertight and included the restoration and replacement of
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The building, designed by architect Cass Gilbert, was constructed between 1929 and 1935. The classically detailed exterior is clad with white Vermont Imperial Danby marble with bronze windows and ornamental bronze doors, railings and light fixtures. In December 2005, a modillion from the pediment
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The Architect of the Capitol constructed scaffolding around the Statue of Freedom to prepare for the tri-annual inspection and preservation efforts of the statue. The conservation of the art included washing the statue, inspecting and documenting the condition of the surfaces, replacing caulking and
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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 explored options for achieving future energy savings, reducing environmental impacts and maintaining a reliable source of chilled water
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The U.S. Capitol Visitor Center is redesigning Exhibition Hall. Visitors will encounter a dynamic and educational environment that will to inform, involve and inspire them about Congress’ role in the democratic process.
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The structural concrete at the two horseshoe entrances of the John Adams Building garage has significant corrosion. For the past few years, interim measures have been put in place to extend its life. Unfortunately, some areas have deteriorated to the point where interim measures are no longer an
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This captivating monument recently underwent a meticulous conservation effort.
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The Architect of the Capitol, in conjunction with the Senate Committee on Rules and Administration, has developed a three-sequence restoration project to preserve the exterior envelope of the century-old building.
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The Cannon House Office Building's renewal is an example of the Architect of the Capitol's commitment to preserving our nation's history.
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To address this stone pandemic across the Capitol campus takes a team of historic preservationists, structural engineers and stonemasons, among others. The men and women of AOC are in a race against time as the infrastructure rapidly crumbles and deferred maintenance projects accumulate. Ongoing
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During the last 120 years, there has been little maintenance performed on the stone and conditions of the terrace have deteriorated. A materials condition survey found that the marble and granite is stained and damaged and requires maintenance and repairs. Repairs include deconstructing and
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Work includes cleaning of the stone and pediment sculpture, replacement of the mortar and sealants at all of the stone joints, treatment of the carved stone and pediment sculpture, replacement of stone where elements are missing or cannot be repaired, and replacement of the bird deterrent systems
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The Rayburn Garage Interior Rehabilitation will replace structural concrete and waterproofing joints to extend the life of the garage for 50 years. The rehabilitation will also bring the garage levels up to code compliance for mechanical, electrical and fire protection systems.
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The Architect of the Capitol is undertaking a multi-year project to renovate the Senate Underground Garage and Senate Parks.