1. Prof. of Civ. Engrg.; Dept. of Civ. Engrg., Utah State Univ., Logan, UT; formerly, Assoc. Prof. of Civ. Engrg., Dept. of Civ. Engrg., Univ. of Illinois, Urbana, IL
2. Prof. of Hyd. Engrg., ept. of Civ. Engrg:, Univ.. of Illinois at Urbana-Champaign Campus, Urbana, Ill