Maharashtra Maritime Board, Mumbai have a proposal for development of a Ro–Ro jetty at Revdanda, Raigad District, Maharashtra, situated on the right bank of the Kundalika river on the west coast of India. At present, a Captive Jetty Facility by JSW in Revdanda Creek at Salav, is already operative. It was observed from the admiralty chart of the year 1986 that the natural available depths were in the range of −3 to −5 m below CD in the navigational channel. The optimum breakwater of 510 m length was evolved to meet the wave tranquillity requirements and for arrest of littoral drift to avoid sedimentation in the channel as well as at the development site. The spring tidal range is about 4.4 m at the site. The sedimentation in the approaches and in the development area would occur mainly due to suspended sediments transported by the tidal currents. The depth requirement for the Ro–Ro vessels is about −3 m below CD. The mathematical model studies were undertaken at CWPRS to examine the adequacy of the proposed breakwater layout of the Revdanda harbour in respect of hydrodynamics and sedimentation aspects. The simulation of the hydrodynamics and sedimentation at the proposed site is carried out with existing condition as well as with the proposed protection for the Ro–Ro jetty with the Groyne of length 510 m. The impact of the proposed protection and development is assessed for hydrodynamics and sedimentation at the site. Hydrodynamics studies indicate that the average current during peak river discharge would be of the order of 0.60 m/s in the dredged area in front of Ro–Ro jetty for proposed condition and about 0.70 m/s in the main channel. The total quantity of capital dredging of about 35,000 cubic meters will be involved to make a dredged basin at −4 m in front of 230 m long Ro–Ro jetty. Sediment studies indicated that the average loss of depth in dredged area is around 0.12 m annually. The proposed breakwater would not have any adverse effect on morphological changes in the harbour.