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

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This painting by Allyn Cox depicts the cornerstone laying ceremony and is currently on display in the House Wing of the U.S. Capitol Building.
The cornerstone was laid on Wednesday, September 18, 1793, during the first...

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A crowd of people visiting the Capitol during visitor hours
Visitor Hours for the Buildings on Capitol Hill.

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Painted portrait of Dr. William Thornton
 The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Capitol Hill, with its rich history and iconic buildings, allows for an eclectic mix of professions. Jim Saenger, the Capitol’s Carillonneur, has perhaps one of the most unique and least visible jobs on the Hill.
Capitol Hill, with its rich history and iconic buildings, allows for an...

What's New

Generator Replacement at the Library of Congress John Adams Building

Generator Progress May 2014

Work is underway at the northwest corner of the Library of Congress John Adams Building to replace the existing emergency generator with one that provides more than twice the power.

The existing emergency generator had reached the end of its serviceable life and lacks adequate capacity to support future needs of the John Adams Building.

Update April 28, 2014: The generator was placed inside the completed vault at the end of March. Electrical work is currently being performed in the vault. To minimize noise impacts on the community work will take place between 7 a.m. and 6 p.m.

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Building: 
U.S. Library of Congress
Status: 
Completed
Tags: 
John Adams Building
Is a Video: 
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