1. The University of Texas at Austin, Department of Civil Engineering, Cockrell Hall 9.227, Austin, Texas 78712, USA, Telephone: 1/512-471-4929, Telefax: 1/512-471-6548
2. Golder Associates Inc., 4104-148th Avenue N.E., Redmond, Washington 98052, USA, Telephone: 1/206-883-0777, Telefax: 1/206-882-5498