A Look Inside The Restoration Of The U.S. Capitol’s Dome

For the first time since 1960, the Capitol dome is getting a full restoration to fix the over 1,000 cracks that have come as a result of mother nature.

This is a massive undertaking both financially and logistically. Check out this fascinating look inside the project from the Architect of the Capitol. 

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 Dome has not undergone a complete restoration since 1959-1960 and due to age and weather is now plagued by more than 1,000 cracks and deficiencies.

The Architect of the Capitol recently began a multi-year project to repair these deficiencies, restoring the Dome to its original, inspiring splendor and ensuring it can safely serve future generations of visitors and employees as the roof of the Capitol.

“As stewards of the Capitol for the Congress and the American people, we must conduct this critical work to save the Dome,” said Architect of the Capitol Stephen T. Ayers, FAIA, LEED AP. “From a distance the Dome looks magnificent, thanks to the hard-work of our employees. On closer look, under the paint, age and weather have taken its toll and the AOC needs to make repairs to preserve the Dome.”

Following a full and open competitive bidding process, a contractor was selected to perform the Dome Restoration Project. The AOC will supervise the project to ensure it remains on time and on budget. The project was awarded in November 2013 and preparation work began in January 2014.

To protect the public during this project, a canopy system in the shape of a doughnut will be installed in the Capitol Rotunda. The configuration allows the Apotheosis of Washington mural, in the eye of the Rotunda, to be visible during the restoration process. To facilitate the instillation of the canopy system, the Rotunda will be closed from April 12 to April 28, 2014.

Following installation of the safety netting, a scaffold system that will surround the exterior of the Dome will be installed. Scaffold towers and scaffold bridging will also be constructed on the West Front of the U.S. Capitol Building (the National Mall side) to help move materials to the work areas.

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