This study is to invest safety against the local corrosion of steel pylon in the Dolsan bridge(Cable-stayed type). For the investigation, visual inspection, non-destructive testing using the high resolution camera and ultrasonic thickness gauge with the structural analysis were completed. In the result of the safety check, no problem of steel pylon is detected. Cause of corrosion is damage on steel surface during early stage of the construction.

• 김현우(한국시설안전공단 특수교유지관리센터 직원, 공학석사) | Kim, Hyun Woo
• 박시현(한국시설안전공단 특수교유지관리센터 소장, 공학박사) | Park, Si Hyun
• 박노영(한국시설안전공단 특수교유지관리센터 대리) | Park, No Young
• 이상철(한국시설안전공단 특수교유지관리센터 센터장, 공학박사) | Lee, Sang Cheol