Bank Erosion

The present method used to calculate sediment loading from tidal shoreline erosion that is input to the Chesapeake Bay Water Quality Model consists of a single estimated split between bank and nearshore (shallow water area at base of bank) erosion.

The assumptions from previous work used the best available information but applying a 65%:35% bank/nearshore sediment contribution is clearly not the case along many shore reaches. Determining the nature of the downcutting on nearshore strata is crucial to the evaluation of the 65%:35% split and therefore sediment contributions from shore erosion.

Bank vs. Nearshore