Morphologic features of tidal inlets, such as ebb shoals and flood shoals, are attractive potential sources of sediment for beach nourishment because of their close proximity to shore and the probable compatibility of sediment grain size and color with those of the neighboring beaches. Removal of sediment by mining will, however, interrupt the natural sediment bypassing of the integrated sediment-sharing system. Until recently, the consequences of mining inlets were difficult to estimate. The Inlet Reservoir Model is a new technology that can estimate alterations in growth of inlet morphologic features and changes in the bypassing rate in response to mining of ebb- and flood-tidal shoals. This paper describes a general methodology incorporating bathymetric data and aerial photography, operation of wave and tidal circulation numerical models, and application of the Reservoir Model to examine the response of complex inlet system, Capri Pass, Florida, to proposed sediment mining to nourish the downdrift Hideaway Beach. The Reservoir Model provided estimates of the reduction in natural bypassing and the time lag for recovery to the pre-mining condition. Through application of such a methodology, which is applicable to any tidal inlet, alternatives for the location of mining and acceptable amount of volume to be taken can be evaluated and compared quantitatively.