1. Visiting Prof.; Dept. of Civ. Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA
2. Res. Civ. Engr.; Soils and Pavement Lab., U.S. Army Engr. Waterways Experiment Station, Vicksburg, MS
3. Struct. Engr., Design Branch, Engrg. Div., U.S. Army Engr. Dist., Vicksburg, MS