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http://dx.doi.org/10.3741/JKWRA.2016.49.10.809

Improvement study of river-crossing structures in geyongnam prefecture  

Kim, Ki-Heung (Dept. of Civil Engrg., Gyeongnam National University of Science and Technology)
Lee, Hyeong-Rae (Dept. of Civil Engrg., Gyeongnam National University of Science and Technology)
Jung, Hea-Reyn (Dept. of Civil Engrg., Gyeongnam National University of Science and Technology)
Publication Information
Journal of Korea Water Resources Association / v.49, no.10, 2016 , pp. 809-821 More about this Journal
Abstract
The study area is local river of 671 (total length 3,741 km) in Gyeongnam prefecture, the results are as follows. Total number of river-crossing structures was investigated as 7,730, and it was found that structures were installed in 2.1 sites per 1 km (river length) on average. Diversion weirs for agriculture were 4006 (51.82%) and drop structures for channel bed maintenance were 3670 (47.48%), but the rest (riverbed road etc.) were 54 (0.70%). The number of high structures (height > 1.0 m) that affect many impact in upstream and downstream was investigated as 3,897 (51%), and the number of low structures (height < 0.5 m) that affect negligibly was 1109 (14%). Fish ladders have been installed on 640 (8%) structures in 153 (23%) rivers. In flood control and environment conservation, river-crossing structures brought about various impact that flood water level is raises and the eco-corridor is intercept. In order to improve these problems, we proposed a few engineering measures that can be realize with respect to river-crossing structures.
Keywords
River Restoration; Environmental Conservation; Local River; Diversion Weir; Drop Structure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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