Structures Functional Group

Technical Committee 9 – Seismic Design for Railway Structures

This committee is responsible for the development of recommended practices for railway design in seismically active areas. This committee also develops recommended practices for post-earthquake response, including inspections.


Steven R. Williams, PE

AVP Engineering

ARE Corporation


Vice Chair

Sean Cooney, PE

Senior Project Manager - Rail and Movable Bridge

HNTB Corporation



Mark Giesmann, PE

NE/IA Freight Rail Structures Section Manager



Earthquake Reports (PDF)

Atico, Peru

Subcommittees and Current Assignments

Subcommittee A: Revision of Manual and Recommendations for Further Investigation and Research.

CA-1-18: Maintain Glossary. Ongoing assignment.

Subcommittee 1: Seismic Event Preparedness and Post-Event Response.

C1-1-95: Review and update Part 1.2-Post Seismic Event Operation Guidelines and Part 1.5-Existing Structures, as required, as well as Commentary to these Sections. Ongoing assignment.

C1-1-14: Review and update Parts 1.6-Other Facilities and Infrastructure, 1.7-Construction by Others, and 1.8-Retired Facilities, as required, as well as Commentary to these Sections. 
Ongoing assignment.

Subcommittee 2: General Requirements and Design of Structures.

C2-1-95: Review and update Part 1.3-General Requirements and Part 1.4-New Bridges, as well as Commentary to these Sections. Ongoing assignment.

C2-5-97: Track contribution to seismic response. On hold pending additional research/testing.