1. Research Associate, Univ. of Washington, Dept. of Construction Management, Seattle, WA 98195.
2. Assistant Professor, Univ. of Washington, Dept. of Construction Management, Seattle, WA 98195 (corresponding author).
3. Washington State DOT Administrator, Alaskan Way Viaduct Replacement Program, 999 Third Ave., Suite 2200, Seattle, WA 98104.