Sustainable development is one of the most important topics in today's world, and it is also an important research topic for geoenvironmental engineering. Dredging process is performed to expand the river and port channel, flood control and accessing harbors. Every year large amount of sediment are dredged for these purposes. Dredged marine soils can be reused as filling materials, road and foundation embankments, construction materials and wildlife habitat developments. In this study, geotechnical engineering properties and compressibility behavior of dredged soil obtained from the Izmir Bay were investigated. The samples with four different organic matter contents were obtained and particle size distributions, consistency limits, pH and specific gravity tests were performed. The consolidation tests were conducted to examine organic matter content (OMC) effects on compressibility behavior of dredged soil. This study has shown that the OMC has an important effect on the engineering properties of dredged soils. The liquid and plastic limits increased with increasing OMC. The lowest specific gravity belonged to sample which has the maximum OMC. The specific gravity values ranged between 2.76 and 2.52. The maximum void ratio difference belongs to sample with the highest OMC (De11% = 0.38). As the organic matter content of the samples increases, the change in the void ratio has also increased. The compression index increases with increasing OMC., {"references":["O. Ekincioglu, A. P. Gurgun, Y. Engin, M. Tarhan and S. Kumbaracibas, \"Approaches for sustainable cement production – A case study from Turkey,\" Elsevier Energy and Buildings, pp. 136–142, July 2013.","P. E. Martin, G. Bobillon and L. Eisenlohr, \"Reuse of solid waste from the clearing of road basins and ditches in civil engineering: From characterization to ways of treatment,\" in Proc. Meeting on Recent Developments in Sediment Transport and Management of Natural and Urban Sediments, Lyon, 2007, pp. 130–136.","L. Zhang, \"Production of bricks from waste materials - A review,\" Elsevier Construction and Building Materials, vol. 47, pp. 643–655, 2013.","B. V. Elkins and T. K. Thompson, \"Recycling dredge materials for beneficial use,\" in Proc. Dredging and Management of Dredged Material Session, Logan, July 1997, pp. 161–176.","J. Limeira, L. Agullo and M. Etxeberria \"Dredged marine sand as construction material,\" Integrated Environmental Assessment and Management, vol. 1, pp. 355–364, 2005.","W. S. Douglas, A. Maher and F. Jafari, \"Analysis of environmental effects of the use of stabilized dredged material from New York/New Jersey Harbor, USA, for construction of roadway embankments,\" European Journal of Environmental and Civil Engineering, vol. 16, pp. 311–315, 2012.","V. Dubois, N. E. Abriak and R. Zentar, \"The use of marine sediments as a pavement base material\", Waste Management, vol. 29, no. 2, pp, 774 –782, 2009.","D. Ganesalingam, A. Arulrajah, J. Ameratunga, P. Boyle and N. Sivakugan, \" Geotechnical properties of reconstituted dredged mud,\" Proceedings from the Pan-AM CGS Geotechnical Conference, pp. 1 – 7, Toronto, Canada, 2011.","M. Anisuzzaman and M. Arifuzzaman, \"Engineering properties of soft organic soil underlying dredge fill areas of Dhaka Bangladesh\", Proceeding from 2nd International Conference on Transport, Environment and Civil Engineering, Phnom Penh (Cambodia), Sept. 25-26, 2013. \n[10]\tZ. Shahri and C. Chan, \"On the characterization of dredged marine soils from Malaysian waters: physical properties,\" Environment and Pollution, vol. 4, No. 3, 2015.\n[11]\tB. F. Schlue, T. Mörz and S. Kreiter, \"Undrained shear strength properties of organic harbor mud at low consolidation stress levels,\" Canadian Geotechnical Journal, vol. 48, pp. 388–398, 2011.\n[12]\tP. K. Kolay, M. R. Aminur, S. N. L. Taib and M. I. S. Mohd Zain, \"Correlation between different physical and engineering properties of tropical peat soils from Sarawak,\" in Proc. GeoShanghai International Conference, Shanghai, 2010, No. 200. \n[13]\tS. Thiyyakkandi and S. Annex, \"Effect of organic content on geotechnical properties of Kuttanad clay,\" Electronic Journal of Geotechnical Engineering, vol. 16, 2011.\n[14]\tN. E. Malasavage, S. Jagupilla, D. G. Grubb, M. Wazne and W. P. Coon, \"Geotechnical performance of dredged material – steel slag fines blend: Laboratory and field evaluation,\" Journal of Geotechnical and Geoenviromental Engineering, vol. 138, No. 8, August 2012.\n[15]\tB. Ozkirli and O. Urker, \"İzmir Körfezi ve Limanı Rehabilitasyon Projesi kapsamında, Gediz Deltası sulak alanı içerisinde yapılması planlanan tarama malzemesi depolanması ve işlenmesi sürecinin ekolojik ve hukuki olarak incelenmesi\" Doğa Derneği, December 2012.\n[16]\tA. Filibeli, R. Yilmaz and I. Alyanak \"Dredged material of Izmir Harbor: Its behavior and pollution potential,\" Water Science & Technology Journal., vol. 32, no. 2, pp. 105–113, 1995.\n[17]\tASTM, American Society for Testing and Material, ASTM International, West Conshohocken, PA, www.astm.org.\n[18]\tG. Kocasoy, \"Atıksu arıtma çamuru ve katı atık ve kompost örneklerinin analiz yöntemleri,\" ISBN-13: 978-975-518-083-0, ISBN: 975-518-083-4, 1994."]}