Pierre Charles L'Enfant work location Georgetown
L'Enfant arrived in Georgetown on March 9, 1791, and began his work, from Suter's Fountain Inn. Washington arrived later on March 28, to meet with L'Enfant and the Commissioners for several days. On June 22, L'Enfant presented his first plan for the federal city to the President. On August 19, he appended a new map to a letter that he sent to the President.President Washington retained a copy of one of L'Enfant's plans, showed it to the Congress, and later gave it to the three Commissioners. The U.S. Library of Congress now holds both the plan that Washington apparently gave to the Commissioners and an undated anonymous "dotted line" survey map that the Library considers L'Enfant to have drawn before August 19, 1791.The full plan identifies "Peter Charles L'Enfant" as its author in the last line of an oval in its upper left corner. The "dotted line" survey map may be one that L'Enfant appended to his August 19 letter to the President.L'Enfant's "Plan of the city intended for the permanent seat of the government of the United States..." encompassed an area bounded by the Potomac River, the Eastern Branch, the base of the escarpment of the Atlantic Seaboard Fall Line, and Rock Creek. His plan specified locations for two buildings, the "Congress House" (the United States Capitol) and the "President's House" (known after its 1815–1817 rebuilding and re-painting of its stone walls, as the "White House" or "Executive Mansion").The "Congress House" would be built on "Jenkins Hill" (later to be known as "Capitol Hill"), which L'Enfant described as a "pedestal awaiting a monument". The "President's House" would be located at a northwest diagonal from the "Congress House" along the future Pennsylvania Avenue. The "President's House" would be situated on a ridge parallel to the Potomac River, north of a riverfront marsh and a canal (known as "Tiber Canal" or the "Washington City Canal" during the 1800s).L'Enfant envisioned the "President's House" to have public gardens and monumental architecture. Reflecting his grandiose visions, he specified that the "President's House" (occasionally referred to as the "President's Palace") would be five times the size of the building that was actually constructed, even then becoming the largest residence then constructed in America. Emphasizing the importance of the new Nation's Legislature, the "Congress House" would be located on a longitude designated as 0:0.The plan specified that most streets would be laid out in a grid. To form the grid, some streets (later named for letters of the alphabet) would travel in an east–west direction, while others (named for numbers) would travel in a north–south direction. Diagonal broader avenues, later named after the states of the Union, crossed the north–south-east/west grid. The diagonal avenues intersected with the north–south and east–west streets at circles and rectangular plazas that would later honor notable Americans and provide open space.L'Enfant laid out a 400 feet (122 m)-wide garden-lined "grand avenue", which he expected to travel for about 1 mile (1.6 km) along an east–west axis in the center of an area that would later become the National Mall. He also laid out a narrower avenue (Pennsylvania Avenue) which would connect the "Congress House" with the "President's House". In time, Pennsylvania Avenue developed into the capital city's present "grand avenue".
L'Enfant's plan additionally laid out a system of canals (later designated as the Washington City Canal) that would pass the "Congress House" and the "President's House". One branch of the canal would empty into the Potomac River south of the "President's House" at the mouth of old Tiber Creek, which would be channelized and straightened.L'Enfant secured the lease of quarries at Wigginton Island and further southeast along Aquia Creek off the lower Potomac River's southern bank in Virginia to supply well-regarded "Aquia Creek sandstone" for the foundation and later for the wall slabs and blocks of the "Congress House" in November 1791. However, his temperament and his insistence that his city design be realized as a whole brought him into conflict with the Commissioners, who wanted to direct the limited funds available into the construction of the Federal buildings. In this, they had the support of Secretary of State Thomas Jefferson.
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