<P> After L'Enfant departed, Ellicott continued the city survey in accordance with his revised plan, several larger and more detailed versions of which were also engraved, published and distributed . As a result, Ellicott's revisions became the basis for the capital city's future development . </P> <P> In 1800, the seat of government was finally moved to the new city, and on February 27, 1801, the District of Columbia Organic Act of 1801 placed the District under the jurisdiction of Congress . The act also organized the unincorporated territory within the District into two counties: the County of Washington on the northeast bank of the Potomac, and the County of Alexandria on the southwest bank . On May 3, 1802, the City of Washington was granted a municipal government consisting of a mayor appointed by the President of the United States . </P> <P> The District of Columbia relied on Congress for support for capital improvements and economic development initiatives . However, Congress lacked loyalty to the city's residents and was reluctant to provide support . Congress did provide funding for the Washington City Canal in 1809, after earlier private financing efforts were unsuccessful . Construction began in 1810 and the canal opened in late 1815, connecting the Anacostia River with Tiber Creek . </P> <P> Construction of the Chesapeake and Ohio Canal (C&O) began in Georgetown in 1828 . Construction westward through Maryland proceeded slowly . The first section, from Georgetown to Seneca, Maryland, opened in 1831 . In 1833 an extension was built from Georgetown eastward, connecting to the City Canal . The C&O reached Cumberland, Maryland in 1850, although by that time it was obsolete as the Baltimore and Ohio Railroad (B&O) had arrived in Cumberland in 1842 . The canal had financial problems, and plans for further construction to reach the Ohio River were abandoned . </P>

Who decided where the capital city was going to be located