Stone preservation is a top priority for the Architect of the Capitol (AOC) as nearly every building is enveloped in stone and all have problems.

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.

Stone Preservation on Capitol Hill

Ongoing Projects

Completed Projects

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Projects

Covering the Home Team

The amount of talent needed for all the projects around the Capitol campus is high, and fortunately the AOC boasts a deep bench of employees.
Projects

Leave No Stone Unrestored

All around the U.S. Capitol campus, there is something that you cannot avoid seeing as you look at the historic buildings: stone.
Projects

It's About Time

Time has taken its toll on the United State Capitol's stone, but our preservation effort will restore even the finer details, hand-carved by artisans.

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