South 29th Street

South 29th Street
Neighborhoods	South Side Flats, South Side Slopes
Origin of name	Sequential numbering up the Monongahela River
➤ Union Street (1865 – ca. 1880)
➤ 29th Street (1871–1881)
Origin of name	Sequential numbering up the Monongahela River

South 29th Street today exists in two segments: a street joining Carson Street and Sarah Street in the South Side Flats, and a street joining Harcum Way and Mary Street in the South Side Slopes. When this area was being laid out in the 1860s and 1870s, there seems to have been some confusion about which street should get the number 29.

The first use of the ordinal 29th was the 1871 plan of Ormsby Borough, which followed the numbering sequence established in the boroughs of Birmingham and East Birmingham in 1869. This plan gave the name 29th Street to a small alley, north of Carson Street, opposite today's South 29th Street. This quickly became known as Water Works Alley (later Water Works Way) and was vacated in 1950.

The 1872 Hopkins atlas shows a 29th Street farther south, joining Mary Street and Josephine Street, near the segment of South 29th Street that exists today in the Slopes.

By 1881, the ordinal 29th had been given to a street that formed a triangle with Carson Street and South 30th Street; part of this street exists today as South 29th Street in the Flats. This street had been laid out as Union Street in 1865.

The "South" prefix was added by a Pittsburgh city ordinance in 1881; see South First Street for more details.

See also

• 29th Street
• Union Street, for other streets that have had that name