1. Vice President and Chief Engineer, The Transtec Group, Inc., 1012 E. 38 1/2 St., Austin, TX 78751.
2. Professor, Texas A&M Univ., CE/TT1, Room 508G, College Station, TX 77843.
3. Project Manager, The Transtec Group, Inc., 1012 E. 38 1/2 St., Austin, TX 78751.