In the District of Columbia's
Cartesian coordinate system street-naming system, Independence Avenue was originally known as South B Street. Construction on the street began sometime after 1791. By October 1803, it existed definitively between New Jersey Avenue and 1st Street East, and in 1809 it was opened between New Jersey Avenue and
Pennsylvania Avenue. By 1816, the entire length of the avenue appears to have been opened. At the time, South B Street's western terminus was on the shore of the
Potomac River, which at the time was located where 14th Street NW is now. After terrible flooding inundated much of downtown Washington, D.C., in 1881, Congress ordered the
United States Army Corps of Engineers to dredge a deep channel in the Potomac to lessen the chance of flooding. Congress also ordered that the dredged material be used to fill in what remained of the Tiber Creek estuary and build up much of the land near the
White House and along Pennsylvania Avenue NW, by nearly to form a kind of
levee. This "reclaimed land", which today includes
West Potomac Park,
East Potomac Park, the
Tidal Basin, was largely complete by 1890, and designated Potomac Park by Congress in 1897. Congress first appropriated money for the beautification of the reclaimed land in 1902, which led to the planting of sod, bushes, and trees; grading and paving of sidewalks, bridle paths, and driveways; and the installation of water, drainage, and sewage pipes. But South B Street was not extended through the newly reclaimed land. In 1925, Congress authorized the construction of
Arlington Memorial Bridge. The legislation specified that North B Street be treated as a major approach to Arlington Memorial Bridge. The
National Capital Park and Planning Commission approved the significant widening of North B Street into a ceremonial avenue. On February 25, 1931, President
Herbert Hoover signed legislation which renamed North B Street as
Constitution Avenue. Planning for the creation of a similar ceremonial avenue to take the place of South B Street began in 1930. That year, the National Capital Park and Planning Commission (NCPPC) advocated turning the roadway into a much-widened ceremonial avenue as a counterpart to North B Street. The NCPPC proposed extending South B Street west via a bridge over the
Tidal Basin as a means of alleviating the
traffic congestion that occurred after the closure of 13th Street NW south of Constitution Avenue. The following year, the NCPPC proposed widening South B Street to between New Jersey Avenue SE and 12th Street SW. Between 12th and 14th Streets SW, the street would be wide, to accommodate the
piers supporting the planned pedestrian
skyways linking the
United States Department of Agriculture headquarters building with the new
United States Department of Agriculture South Building. All along the route, the north curb would remain in place, while the south curb moved to accommodate the new widths. The NCPPC had already won the support of the
Architect of the Capitol for the plan, which agreed in 1930 to move the
new House office building to the south in order to accommodate the wider avenue. in 1932, showing the western terminus of South B Street still at 14th Street SW The renaming of North B Street and the actions of the NCPPC encouraged local citizens to seek to rename South B Street as well. In April 1932, the Federation of Citizens Associations of Washington, D.C., petitioned Congress to rename South B Street "Washington Avenue" between the
Washington Monument grounds and Pennsylvania Avenue SE. The idea was conceived by the federation's past president, Fred A. Emery, who observed that no major thoroughfare in the city commemorated George Washington (whose bicentennial birth was being celebrated that year). But no action was taken in the
72nd United States Congress. Instead, Senate Joint Resolution 258 was introduced
Arthur Capper (
R-
Kansas) in the
United States Senate to change the name to Independence Avenue. The
Senate Committee on the District of Columbia favorably reported the bill on February 28, 1933. But Congress adjourned on March 3 without further action. The NCPPC, however, did not give up on the idea. In November 1933, it approved changing the width of South B Street between 12th and 14th Streets SW to , which helped cement in place its plan for a "future Independence Avenue". At its meeting on January 18, 1934, it re-emphasized its support for the street's renaming. Congress acted swiftly to rename the street. On February 2, 1934, Senator
James J. Davis (R-
Pennsylvania) submitted S. 194 to accomplish this purpose. The full Senate passed the bill on February 6. The bill went to the
United States House of Representatives, where the
House Committee on the District of Columbia reported the bill favorably on March 10. However, the bill was held up (along with all other D.C.-related legislation) as the House debated the
Reciprocal Tariff Act. Worried that the bill might stall, the
Washington Board of Trade endorsed the legislation on March 30. On April 5, Representative
Mary T.Norton (
D-
New Jersey), chair of the House District of Columbia Committee, broke the logjam after appealing to the House leadership and won a full day's debate on all D.C.-related bills, including the South B Street naming bill. The full House passed the bill April 9, and President
Franklin D. Roosevelt signed it into law on April 13, 1934. Independence Avenue was finally extended westward through
West Potomac Park in 1941 and 1942. For a decade, the NCPPC's proposal to extend the avenue westward had been opposed by the
United States Department of the Interior, which opposed use of parkland for roads. There was also concern that the road would interfere with the Tidal Basin, which served as a flushing system of the downtown sewer network. But in October 1941,
United States Secretary of the Interior Harold L. Ickes removed his opposition to the extension, citing the need to accommodate defense workers needing to access the national capital. The NCPPC voted on October 17, 1941, to extend the avenue west to the Potomac River. The agency was still unsure, however, whether to fill in the Tidal Basin's north bay, bridge it, or build a
causeway. A bridge over the north bay of the Tidal Basin was the solution, and construction on the new
Kutz Memorial Bridge began in June 1942. The 1934 legislation only renamed B Street SW. B Street SE, both east and west of the
Anacostia River, retained its original name. This proved immensely confusing for motorists, as the street changed its named east of
South Capitol Street. In 1950, the D.C. Commissioners voted to change the name of B Street SE between South Capitol Street and the Anacostia River to Independence Avenue SE. B Street SE east of the Anacostia River continues to retain its original designation. == Route and landmarks ==