This April 5th dam and Hwanggang dam, which are located in Imjin river, North Korea, become the main causes of water shortages and damages in Imjin river downstream. April 5th dam is assumed a small or medium-sized dam, its total storage volume reaches about 88 million ㎥. And Hwanggang dam, multi-purposed dam of total storage volume approximately 0.3 billion ㎥ to 0.4 billion ㎥ is used as source of residental or industrial water in Gaeseong Industrial Complex. North Korea, which has April 5th dam and Hwanggang dam in Imjin river, manages water of approximately 0.39 billion ㎥ to 0.49 billion ㎥ directly. As water is storaged or discharged through dam, it causes a severe damage to areas in Yeoncheon-gun and Paju city, South Korea. Therefore, this study intends to analyze and estimate runoff through dam construction by using hydrological observation data and artificial data such as service water supply and agricultural water in Imjin river, water shortage and damage correctly.

Abstract
 2. 대상유역 현황
  2.1. 일반현황
  2.2. 댐 건설 현황
 3. 수문자료의 수집, 검토 및 분석
  3.1. 수문자료 수집 및 검토
  3.2. 수문분석
  3.3. 4월5일댐과 황강댐의 저류 및 방류
 4. 결 론
 참 고 문 헌

• 김동필(한국건설기술연구원 수자원연구실) | Dong-Phil Kim (Water Resources Research Division, Korea Institute of Construction Technology) Corresponding Author
• 김경호(충북대학교 토목공학과) | Kyoung-Ho Kim (Department of Civil Engineering, Chungbuk National University)
• 김주훈(한국건설기술연구원 수자원연구실) | Joo-Hun Kim (Water Resources Research Division, Korea Institute of Construction Technology)