Steel Bridge Research Committees

Research Committees

AISI coordinates the formation and activities of three research committees dedicated to identifying current and future design challenges, developing new technologies, and advancing best practices for steel bridges. The Steel Bridge Task Force, Corrosion Advisory Group and Welding Advisory Group have made significant contributions over the years to advance steel bridge design and construction.

The Steel Bridge Task Force (BTF) is a council of experts representing steel producers, service centers, bridge fabricators, fasteners, coaters/galvanizers, design firms, university faculty, consultants, steel industry organizations, the Federal Highway Administration, county and state bridge engineers, and the AASHTO Technical Committee for Structural Steel Design (T-14).

The BTF objectives are to:

  • Support the American Association of State and Highway Transportation Officials (AASHTO) T-14 Committee in writing the steel bridge provision of the AASHTO design specifications.
  • Advance the state-of-the-art in steel bridges. The BTF is the best gathering of steel bridge leadership in the country for discussing steel bridge development needs and innovation.
  • Collaborate with bridge owners, including Departments of Transportation and local owners, on ways to improve steel bridge practices, particularly as they relate to the resiliency and economy of bridge design.
  • Review steel bridge research results with AASHTO T-14 members to develop and implement advances for inclusion in steel bridge design and construction codes.
  • Provide leadership in the steel bridge community, including the identification of needs for improving steel bridge quality and safety.
  • Identify and recognize achievement through the presentation of the Robert J. Dexter Memorial Award Lecture and the Richard S. Fountain Award.


The Corrosion Advisory Group (CAG) is a council of technical experts  representing steel producers, fabricators, academia, government officials and related organizations that provide specification and code development, research, technical assistance, site investigations and steel construction market development related to corrosion performance and mitigation of structural steel corrosion.

The CAG objectives are to:

  • Assist in the development of guidelines and specifications to mitigate the corrosion of steel structures through the use of steel grades (ASTM A1010, ASTM A588, HPS 50W/70W/100W, etc.), proven coating systems (galvanizing, metalizing, polymer coatings, etc.) and design details.
  • Identify and develop research efforts for the continued advancement of steel corrosion mitigation technologies and design details.
  • Provide site investigations to bridge owners at locations in which structural steel is a potential option for a newly constructed or replacement bridge.
  • Facilitate technical knowledge transfer of advances in corrosion technology from steel mills, fabricators, universities and corrosion engineers to designers, owners and government officials.
  • Collaborate with related organizations to assist in implementing new guidelines, methodologies and research findings.


The Welding Advisory Group (WAG) is a council of technical experts from steel producers, fabricators, welding manufactures, academia, government officials, and related organizations who provide specification and code development, research, review of new technologies, and market development related to the welding of steel bridges and other related products.

The WAG objectives are to:

  • Develop guidelines to fabricate and weld structures using various steel grades common to bridges and related products, based on updated acceptance criteria.
  • Work with the Federal Highway Administration and the U.S. Navy to identify research needs for the continued development of steel bridge, ship, and other related welding technologies.
  • Present and evaluate new technologies and methods for welding steel structures.
  • Facilitate technical knowledge transfer of the latest recommended metrologies from steel mills, fabricators, universities, and welding manufacturers to designers, owners, and government officials.
  • Collaborate with AWS D1.1, D1.5, and AASHTO T-17 to assist in implementing new guidelines, methodologies, and research findings.