7th Street Bridge Rehabilitation

Advantage Steel and Construction performed rehabilitation work on one of the “Three Sisters” self-anchored suspension bridges in the city of Pittsburgh. The extensive rehabilitation project included over 400,000 pounds of steel repairs on floor beams, stringers, towers, and truss members. A complete deck replacement was also performed on the 90 year old bridge, requiring extensive construction engineering and temporary support systems.

The complexity of the self-anchored suspension bridge required a designed tie-down system to secure the bridge while replacement of bearing pins and other repairs were being performed. Removal, fabrication and installation of the steel roadway curb system also occurred on the project, with a fresh coat of Aztec Gold covering all of the complex repairs throughout the bridge.

2020 NSBA National Prize Bridge Award

2017 ABCD Outstanding Rehabilitated Bridge Award

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Key Construction Elements:‍

• Bearing Replacement
• Rivet Replacement
• Temporary Support Systems
• Pin Replacement
• Jacking
• Floorbeam Repairsself-anchored suspension bridge required a  designed tie-down system to secure the bridge while the
• Construction Engineering
• Diaphragm Replacement
• Heat Straightening
• Fabrication
• Shear Connector Installation

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General Work Activities:

• Steel Erection
• Steel Rehabilitation
• Innovative Solutions
• Temporary Support
• Jacking
• Demolition
• Fabrication