Oh, H.M.; Hwang, S.M.; Kim, S.M.; Kang, T.S.; and Jeong, K.Y., 2018. Systematic Coastal Field Survey Method and Coastal Structures Management Status in the Korean Coast. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 1461–1465. Coconut Creek (Florida), ISSN 0749-0208.

This study analyzes the management status of the Korean coastal structures and suggests coastal field survey methods for a more efficient and systematic coastal management. In order to maximize efficiency, the coastal field survey was divided into three steps. On Survey (I), the topography, structures, industrial structure and etc. were surveyed by using various thematic maps and afterwards the target sites for Survey (II) were chosen. On Survey (II), by visiting the target sites firsthand, the exteriors of terrains, coastal concrete structures were examined, and local residents were interviewed. On Survey (III), timeworn structures that clearly needed maintenance and structures that had more than two faults - cracks, rebar exposure, loss and subsidence -, which were identified during Survey (II), had the round hardness test using the Schmidt hammer. Based on the compressive strength results from the test, all structures were classified into five numerical grades As a result of Survey (I), 2,861 sites for Survey (II) were chosen. Results of Survey (II) identified target structures for Survey (III): 10 in Gangwon (8%), 35 in Gyeongnam (5%), 12 in Gyeongbuk (6%), 10 in Busan (7%), 0 in Ulsan (0%), 22 in Incheon & Gyeonggi (14%), 145 in Jeonnam (14%), 13 in Jeonbuk (19%), 5 in Jeju (3%), 51 in Chungnam (22%). According to the Survey (III) results, 85.2% of the target structures were classified as grade 4 or 5, therefore demonstrating that the three step survey method in this study is appropriate and accurate. This survey method could improve the efficiency of coastal management.