Project name : Reclamation for Sihwa agricultural area Lot 4-1(시화 4-1공구 간척농지개발사업) Project owner : Korea Rural Community & Agriculture Corp. (한국농촌공사) Period : 2006.DEC ~ 2011.DEC Summary : Pump Dredging Silty clay : 2,751,239m3 Pumping distance : 4,900m