Ripple measurements and flow and sediment dynamical data obtained from the shoreface of the Middle Atlantic Bight using instrumented tripods were analyzed to evaluate various predictors of ripple geometry and roughness. A ripple predictor is proposed based on the Grant and Madsen method. This modified ripple prediction along with data recorded by the tripods were then brought into the combined-flow bottom boundary layer model of Grant and Madsen and the modified Rouse equation of Glenn and Grant to calculate sand resuspension coefficient γ 0 and to predict suspended sediment concentration profiles. It was found that under low-energy fair-weather conditions, sand ripples are in the equilibrium range and ripple roughness increases with the bed shear stress. This causes strong vortex activity close to seabed and thus higher resuspension coefficient. Under moderate storm conditions, ripple break off occurs and ripple roughness will decrease with bed shear stress. This reduces the vortex activity and hence sand resuspension coefficient γ 0 .