Abstract

The construction of the Black sea motorway in northern Turkey started in 1998. The motorway is located along the shore line. To provide shoreline protection, T-head groins were placed along the coast at selected locations which may be prone to erosion. The objectives of this paper are to evaluate the performance of the 13 T-head groins built at Kiyicik, Turkey. The shore survey and sediment analyses were conducted and analyzed in relation to bathymetry assessments and sediment grain size characteristics (d25, d50, d65, d90). Effectiveness of the T-head groins was evaluated for shore line protection. Sediment accumulation profiles differed based on positions of the T-head groins along the shore line. The grain sizes of the sediments accumulating at theT-head groins were significantly different depending on their location.

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