Technical Committees

Committee 7 – Timber Structures

Structures Functional Group

This committee is responsible for the development and publication of recommended practices and information related to:

  • Definition and nomenclature of accepted standards and specifications for hardwoods, softwoods and engineered wood products.
  • Design criteria and usage of various types of wood and engineered wood products in railway bridge structures.
  • Design, construction and maintenance of timber railway bridge structures.



Walter F. Bleser, II, PE




Vice Chair

Christopher R. Frank

AVP Engineering

Genesee & Wyoming Inc.



Stephanie E. Swanson, P.E.

Engineer Bridge Inspection

BNSF Railway



Subcommittees and Current Assignments

Subcommittee A: Recommendations for further investigation and research.

Subcommittee B: Manual revision.

DB-1-15: Review of chapter contract language. Completion is scheduled for February 2018.

Subcommittee 2: Material Specifications and Design, Rating and Loading Requirements for Timber Structures.

C2-1-16: Review and update Parts 1-3 and associated Commentary of Chapter 7.
D2-1-14: The committee has tabled this assignment.
D2-1-15: The committee has tabled this assignment.

Subcommittee 3: Construction, maintenance and inspection of wood bridges and trestles.

C3-1-14: Review and update Parts 4 and 5 of Chapter 7.
D3-1-14: Review of pile driving formulae and recommended manual revision. Completion is scheduled for July 2016.