1. Graduate Student, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., Lubbock, TX 79409.
2. Assistant Professor, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., Lubbock, TX 79409.
3. Professor, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., Lubbock, TX 79409 (corresponding author).