Included in this publication are reports on temperature-induced deflections and observed deflections of reinforced concrete slab systems; measured and long-term deformations; deflection analysis of cable-stayed segmental prestressed concrete bridges; lateral stiffness characteristics of reinforced concrete frame-wall structures; rational deformation prediction of prestressed members; a study of service load deflections and ultimate load deflections of flat slab structures; probabilistic approach to deflection controlled reinforced concrete slab design; deformations and stresses in flanged concrete structures due to temperature differentials; structural serviceability under dynamic loading; and deflections of: partially prestressed members, waffle slabs, concrete slabs under construction loading, and cracked prestressed concrete members.