The Roberto Clemente Bridge: A Pittsburgh Icon
The Roberto Clemente Bridge, also known as the Sixth Street Bridge, is a prominent landmark in Pittsburgh. Spanning the Allegheny River, this bridge holds historical significance and serves as a vital transportation route in the city. Named after the legendary Pittsburgh Pirates baseball player, Roberto Clemente, this bridge is one of the iconic “Three Sisters” bridges that grace the city’s skyline. In this article, we will delve into the rich history of the Roberto Clemente Bridge, its architectural features, and its significance to the people of Pittsburgh.
Early History
The Origins of the Bridge
The first incarnation of the bridge at the current site was a wooden covered bridge constructed in 1819 by a contractor named Lothrop. This bridge, utilizing Burr trusses, featured six spans and provided a vital connection between the city’s downtown area and the surrounding neighborhoods. However, as the demands of modern transportation grew, it became apparent that a more substantial and durable structure was needed.
John A. Roebling’s Contribution
In 1859, the second version of the Sixth Street Bridge was built by the renowned engineer, John A. Roebling. This marked his final bridge project in Pittsburgh, with his son, Washington Roebling, assisting in its construction. The second bridge boasted two main spans of 343 feet, supported by shore spans of 179 feet. It featured a unique design, with its floors suspended from wire hangers, which were in turn suspended from wire catenaries. Despite its impressive appearance, this bridge proved to be too narrow and fragile for the increasing transportation demands of the city and was eventually demolished in 1892.
The Third Bridge and Its Fate
Engineer Theodore Cooper took charge of constructing the third iteration of the Sixth Street Bridge in 1892. This bridge featured main spans that were 440 feet long and utilized camel-back type through trusses with upward-angled upper chords. It was a significant improvement over its predecessor, with spans twice as wide and capable of handling modern traffic demands. However, due to safety concerns, the steelwork of the bridge was dismantled in 1927 and repurposed for the Coraopolis Bridge on Neville Island.
The Current Bridge
Construction and Design
The current Roberto Clemente Bridge was completed on September 29, 1928, and is part of the Three Sisters bridges, along with the 7th and 9th Street bridges. These bridges are nearly identical self-anchored, eye-bar suspension types, showcasing the innovative engineering techniques of the time. The bridge’s horizontal pull is resisted by steel girders along each side of the roadway, while a suspension system consisting of 14″ eye-bars and 4″ eye-bar suspenders supports the roadway. The stiffening system consists of triple web-plate girders parallel to the road grade.
The Bridge’s Significance
Named in honor of Roberto Clemente, the bridge holds a special place in the hearts of Pittsburgh residents and visitors alike. It serves as a symbol of the city’s rich baseball history and the enduring legacy of one of its greatest sports icons. The Roberto Clemente Bridge is not only a functional transportation route but also a beloved pedestrian pathway, particularly on game days for the Pittsburgh Pirates and Steelers. Its proximity to PNC Park and Acrisure Stadium makes it an essential route for fans attending sporting events. Moreover, the bridge offers breathtaking views of the city skyline and the Allegheny River, making it a popular destination for locals and tourists seeking a picturesque stroll.
Significance and Legacy
The Roberto Clemente Bridge and its neighboring “Three Sisters” bridges hold historical and architectural significance for the city of Pittsburgh. These bridges represent a unique engineering feat, being the first examples of self-anchored suspension bridges in the United States. Moreover, they are the only trio of nearly identical bridges in the country, adding to their allure and charm.
The cultural importance of the Roberto Clemente Bridge extends beyond its architectural merits. It stands as a tribute to Roberto Clemente, an iconic figure who dedicated his entire career to the Pittsburgh Pirates. The renaming of the bridge in his honor was a testament to his impact on and off the field.
The Roberto Clemente Bridge stands as a testament to Pittsburgh’s rich history, architectural prowess, and love for its sports heroes. As one of the Three Sisters bridges, it showcases the city’s commitment to innovative engineering and design. Whether you walk across it for the stunning views or to attend a game at PNC Park, this bridge offers an experience that is both functional and memorable. The Roberto Clemente Bridge serves as a reminder of the city’s vibrant past and its enduring connection to the sport that has captured the hearts of Pittsburgh residents for generations.
