Pile-founded floodwalls are commonly used in the New Orleans area to protect low-lying areas from flooding. They are usually referred to as T-walls due to their inverted “T” shape. The T-walls consist of reinforced concrete and are supported by long batter piles. They are relatively expensive compared to earthen levees, however, they are extremely robust and their small footprint is very advantageous. Since the soils in Southern Louisiana contain soft and compressible silt and clay these floodwalls need to be designed to resist not only the flood loads, but also the bending moments induced on the batter piles due to the soil settlement. The current T-wall design procedure does not account for the settlement-induced bending moments. Over the last two years, Rensselaer Polytechnic Institute, Virginia Polytechnic Institute and State University and the United States Army Corps of Engineers have collaborated in order to investigate this phenomenon. To this end, a series of centrifuge tests has been performed at the Center for Earthquake Engineering Simulation at RPI. Different pile configurations and loading scenarios were explored aiming at (a) gaining insight into the mechanisms and magnitudes of downdrag-induced bending moments and (b) providing reliable data sets that can be used to validate numerical models, which can then be used to develop an integrated design procedure for pile supported T-walls. This paper describes and discusses one of these centrifuge tests that indicated considerable increase of the bending moments on the batter piles when simulating 13 prototype years of consolidation of the foundation soil under the weight of a symmetrical levee embankment.