The Characteristics of water catchment terrain on the cut-slopes of general nation road was analyzed. As the water catchment terrain increased the frequency defects on slopes are increased, and it shows a linear increase pattern.
As a results of analyzing the location of water catchment terrain, when the intersection line of water catchment terrain located in the slopes the frequency defects were higher then it located top of slopes. also the types of defects were different.

• 석재욱(한국시설안전공단, 시설안전연구소, 선임연구원) | Suk, Jae-Wook 교신저자
• 이종건(한국시설안전공단, 시설안전연구소, 책임연구원) | Lee, Jong-Gun
• 김용수(한국시설안전공단, 시설안전연구소, 수석연구원) | Kim, Yong-Soo