Introductory technical guidance for civil engineers, geotechnical engineers and other professional engineers and construction managers interested in design and construction of flood and retaining wall. Here is what is discussed: 1. INTRODUCTION, 2. TYPES OF FLOOD WALLS, 3. DIFFERENCES BETWEEN RETAINING AND FLOOD WALLS, 4. COORDINATION BETWEEN DISCIPLINES, 5. GEOTECHNICAL INVESTIGATION, 6. DESIGN STRENGTH SELECTION.