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19-418: Tenth Street Bridge may refer to: Tenth Street Bridge (Pittsburgh, Pennsylvania) Tenth Street Bridge (Great Falls, Montana) Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Tenth Street Bridge . If an internal link led you here, you may wish to change the link to point directly to

38-445: A means of erecting a substantial bridge from mere planks employing lower–skilled labor, rather than heavy timbers and more expensive carpenters and equipment, the lattice truss has also been constructed using many relatively light iron or steel members. The individual elements are more easily handled by the construction workers, but the bridge also requires substantial support during construction. A simple lattice truss will transform

57-539: A novel system to dehumidify the bridge cables. The Tenth Street Bridge is known locally for its painted figures of four geese (sometimes described as dinosaurs or "dino-geese") at the top of the south tower, described as "quirky icons" by the Pittsburgh Tribune-Review . Originally an unsanctioned work of street art created in the 1990s, the geese were painted over when the bridge was repainted in 2018. The original artist, Tim Kaulen, launched

76-554: A petition to restore the geese which gathered enough signatures to win approval from the Allegheny County Council . Kaulen repainted the geese with official permission in October, 2018. Lattice truss bridge A lattice truss bridge is a form of truss bridge that uses many small, closely spaced diagonal elements forming a lattice . The design was patented in 1820 by architect Ithiel Town . Originally

95-399: A wide-span shallow rise roof truss for industrial structures. McTear & Co of Belfast , Ireland began fabricating these trusses in wood starting around 1866. By 1899, spans of 24 metres (79 ft) had been achieved, and in the 20th century, shipyards and airplane hangars demanded ever greater clear spans. Howard Carroll built the first completely wrought-iron lattice truss bridge. This

114-793: Is located in Allegheny County , its 725-foot (221 m) main span is the longest on the Monongahela River. The bridge was renamed on Labor Day 2007 for Philip Murray , the first president of the United Steelworkers of America . Built between 1931 and 1933, this bridge connects South Tenth Street on the South Side to Second Avenue and the Armstrong Tunnel under the Bluff . A staircase leads from

133-490: The Three Sisters which use eyebars instead of cables. The two cables, each 13 inches (33 cm) in diameter, are anchored in concrete vaults at either end of the span and travel over two 160-foot (49 m) towers resting on stone piers. Suspender cables, arranged in pairs which are spaced 25 feet (7.6 m) apart, transfer the load of the bridge deck to the main cables. There are 28 sets of suspender cables on

152-480: The applied loads into a thrust, as the bridge will tend to change length under load. This is resisted by pinning the lattice members to the top and bottom chords, which are more substantial than the lattice members, but which may also be fabricated from relatively small elements rather than large beams. The Belfast truss is a cross between Town's lattice truss and the bowstring truss . It was developed in Ireland as

171-525: The deck and electrical system. A $ 1.8 million rehabilitation project was completed in 1978–79, including structural repairs, deck and sidewalk replacement, painting, and removal of the streetcar tracks. The bridge was rehabilitated again in 2017–19 by the American Bridge Company at a cost of $ 21.1 million. This project included replacement of the deck, sidewalks, and lighting, structural repairs, painting, waterproofing, and installation of

190-414: The intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Tenth_Street_Bridge&oldid=928790587 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Tenth Street Bridge (Pittsburgh, Pennsylvania) The only cable suspension bridge that

209-475: The main span and 10 on each side span. The towers and railings are decorated with Streamline Moderne details, attributed to architect Stanley Roush. The bridge superstructure is painted in the signature "Aztec Gold" color used on several other downtown bridges in Pittsburgh. A private toll bridge connecting what was then the borough of Birmingham to Pittsburgh at McKee Street (now South 10th Street)

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228-503: The northern terminus of the bridge up to the campus of Duquesne University on the Bluff . In 2015, the bridge was one of three bridges to have bike specific lanes installed. It was listed on the National Register of Historic Places in 1986. The Tenth Street Bridge is 1,275 feet (389 m) long and has a main span of 725 feet (221 m). It is the only conventional cable suspension bridge in Allegheny County , unlike

247-434: The turnpike. The company completed a three-span, covered wooden lattice truss bridge in 1859. In 1896, the city of Pittsburgh purchased the bridge for $ 305,000 and abolished the 1-cent toll. The wooden bridge was in poor condition by the early 1900s and was demolished in 1902. A new steel bridge was completed in 1904. This bridge was a five-span Pratt truss , 50 feet (15 m) wide and 1,400 feet (430 m) long. It

266-596: Was completed in September, 1933, providing a highway connection from the south end of the bridge to the Liberty Tunnel and Mount Washington . In addition to road traffic, the bridge was also used by Pittsburgh Railways streetcars on the 53 Carrick route. The line was rerouted to the Smithfield Street Bridge in 1968. By the 1970s, many parts of the bridge had deteriorated, particularly

285-526: Was constructed on the two piers remaining from the previous bridge and two new piers. In 1927, the Armstrong Tunnel was completed, linking the north end of the bridge with Forbes Avenue . In 1928, Allegheny County voters approved a $ 43.7 million bond issue to fund a variety of public works, including the West End Bridge , McKees Rocks Bridge , Saw Mill Run Boulevard , Allegheny River Boulevard, and Allegheny County Airport . Also included

304-513: Was designed by the office of Allegheny County Chief Engineer Vernon R. Covell , with architectural elements designed by Stanley Roush, and the contract for the superstructure was awarded to the American Bridge Company . The bridge was constructed in 1931–33. After construction of the piers and 116-foot (35 m) towers, workers on suspended catwalks began spinning the two 13-inch (33 cm) diameter steel cables in February, 1932. Each cable

323-644: Was first proposed by the Birmingham Bridge and Road Company, incorporated in 1837. The company also had license to construct a turnpike along Denman Street (South 12th Street) extending to the Monongahela and Coal Hill Turnpike (modern day Arlington Avenue and William Street). The project languished for many years until the company was reincorporated as the Birmingham Bridge Company in 1853, having fully abandoned plans to construct

342-552: Was funding to replace the Tenth Street Bridge, which was considered to be unsafe for heavy vehicles even though it was not very old. Ownership of the bridge was also transferred from the city to Allegheny County. The existing bridge was demolished in 1931 by the Vang Construction Company, which was also responsible for building the substructure of the replacement bridge. The new suspension bridge

361-415: Was wound from 19 bundles of 256 wires each, for a total of more than 2,500 miles (4,000 km) of wire in the entire bridge. After this work was complete, the structural steel superstructure and bridge deck were installed. The bridge opened with little fanfare on February 11, 1933. The total cost of the project was about $ 1.6 million. The Mount Washington Roadway Extension, now the P.J. McArdle Roadway,

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