Quality Assurance Support for Hydraulic Steel Structures for Montgomery New River The U.S. Army Corps of Engineers, Pittsburgh District, currently has a contract for the construction of a new lock chamber which includes the fabrication of a Hydraulic Steel Structures (HSS). Hydraulic Steel Structures are any steel structures used to control or regulate water; they are typically part of a larger navigation or flood control project. During the fabrication of these structures, it is required that they be inspected on a regular basis to ensure compliance with contract requirements set forth by the Plans and Specifications. Many HSS are comprised of Fracture Critical Members (FCM) which requires specific criteria for fabrication (material toughness, weld processes, procedures and methods, etc.) and inspection in accordance with a Fracture Control Plan (FCP). Part of the acceptance of each fabrication is a thorough Quality Assurance (QA) review of the shop drawings, welding process, weld procedures, weld methods, materials, coating systems, metals used in fabrication, welds, weld results, qualifications of fabricators, welders, coaters, and any other parameters that affect quality of materials and introduce discontinuities of each fabricated item. QA Inspection of these HSS requires specific knowledge in, but not limited to, Army Corps of Engineers HSS Guide Specification, AISC, AWS Bridge Welding Code Dl.5, including FCM designation, AASHTO/NSBA Steel Bridge Collaboration S4.1, ASTM coating standards, and SSPC coating standards. Additionally, the QA inspectors should be well versed in welding and coating procedures and methodologies. The Pittsburgh District Construction Division in conjunction with the Responsible Structural Design Section Engineer and/or Structural Engineers of Record (SEOR) are responsible for the QA Inspections of the HSS to make sure that all the applicable code requirements and quality control procedures are being followed and documented.
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Career Level
Mid Level
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