1. Proj. Engr., Granite Constr. Co., 1900 Glendale Ave., Sparks, NV 89432
2. Transp. Engr., CTAK Associates, Portland, OR 97258
3. Prof., Dept. of Civ. Engrg., Oregon State Univ., Corvallis, OR 97331
4. Highway Res. Mgr., ADOT&PF, 2301 Pegar Rd., Fairbanks, AK 99701‐6364