1. Associate Member, ASCE
2. Members, ASCE
3. Geotech. Engr., GEI Consultants, Inc., Englewood, CO 80112.
4. Prof., Dept. of Civ. Envir., and Arch. Engrg., Univ. of Colorado, Boulder, CO 80309-0428.
5. Prof., Dept. of Civ., Envir., and Arch. Engrg., Univ. of Colorado, Boulder, CO 80309-0428.