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In 1884, German-American Henry J. Heinz purchased several lots on the north bank of the Allegheny River in Pittsburgh. [6] From 1888 through 1906, approximately twenty buildings were built or purchased, mostly of wood and beam construction. [7] From 1906 through 1930, new buildings in the complex were made of steel and concrete instead of wood.
Previously owned by Pittsburgh-based PNC Bank and currently owned by SomeraRoad Inc, the 31-story, 420-foot (128 m) high structure was designed by architect Welton Becket and was completed in 1971. A notable feature of the building is the pattern of pre-cast concrete panels on the exterior of its windows.
As highway construction moved away from rigid concrete construction, Blaw-Knox began making highway pavers for the new method of flexible asphalt paving . In 1931 Blaw-Knox introduced a form-riding finisher for asphalt paving. By 1932 they released the first self-propelled non-form riding finisher for the placement of stones and asphalt. [5]
Pittsburgh Technology Center (PTC) is an office park located in the South Oakland neighborhood of Pittsburgh, Pennsylvania PTC, on the 48 acre [ 1 ] site of a former Jones and Laughlin Steel Mill , is a hub of advanced academic and corporate technology research.
The City of Pittsburgh built six other similar bridges in the 1910s and 1920s, of which only the Larimer Avenue Bridge survives as of 2022. [12] The second bridge during construction in 1922. By the 1970s, the bridge had begun to decay. Chunks of concrete fell from the bridge in 1970, necessitating a temporary closure for repairs. [13]
Location of Pittsburgh in Allegheny County. This is intended to be a complete list of the properties and districts on National Register of Historic Places in the city of Pittsburgh, Pennsylvania, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be ...
The Pittsburgh History and Landmarks Foundation (PHLF) Historic Landmark plaque program was begun in 1968 in order to identify architecturally significant structures and significant pieces of Pittsburgh, Pennsylvania, United States's local heritage throughout Allegheny County. Nominations are reviewed by the private non-profit foundation's ...
The U.S. Steel Tower, also known as the Steel Building, or USX Tower (1988–2001), is a 64-story skyscraper at 600 Grant Street in downtown Pittsburgh, Pennsylvania. The interior has 2,300,000 sq ft (210,000 m 2) of leasable space. At 256.3 m (841 ft) tall, it is the tallest building in Pittsburgh. [10]