3rd Cross-Sea Bridge
Hongcheon Branch Tunnel
East Seoul Branch Tunnel
2026
- Feb
- Yeongwol Tunnel 2 Facility Management
- Jan
- 3rd Cross-Sea Bridge Integrated Operations Management
- Jan
- Hongcheon Branch Tunnel Facility Management
- Jan
- Daegwallyeong Branch Tunnel Facility Management
- Jan
- Gangneung Branch Tunnel Facility Management
- Jan
- Wonju Branch Tunnel Facility Management
- Jan
- Boseong Branch Tunnel Facility Management
- Jan
- East Seoul Branch Tunnel Facility Management
- Jan
- Sangju Branch Tunnel Facility Management
- Jan
- Dangjin Branch Tunnel Facility Management
- Jan
- Yangsan Branch Tunnel Facility Management
Seosuwon-Uiwang Expressway
2025
- Jan
- Seosuwon-Uiwang Expressway Integrated Operations Management
- Jan
- Geumgwang Tunnel Facility Management
- Jan
- Anmin-Jangbok Tunnel Facility Management
Pyeongtaekho Rest Area
Jicheon Tunnel
2024
- Dec
- West Inland Expressway Integrated Operations Management
- Dec
- Pyeongtaekho Rest Area Operations
- Dec
- Yesan Yedangho Rest Area Operations
- Sep
- Jicheon Tunnel Facility Management
- Feb
- Sudong Rest Area (Pocheon Direction) Operations
- Feb
- Sudong Rest Area (Hwado Direction) Operations
- Jan
- Pocheon-Hwado Expressway Integrated Operations Management
Incheon Grand Bridge
2023
- Nov
- Mupung Tunnel Facility Management
- Apr
- Incheon Grand Bridge Sales Management
- Mar
- Bongan Tunnel Facility Management
- Jan
- Bibong-Maesong Expressway Integrated Operations Management
- Jan
- Daegu-Busan Expressway Traffic Management
Gwangju-Wonju Expressway
2022
- Dec
- Wangsan Tunnel Facility Management
- Nov
- Gwangju-Wonju Expressway Sales Management
- May
- Incheon-Gimpo Expressway Integrated Operations Management
- Apr
- Sanseong Tunnel Integrated Operations Management
- Jan
- Pyeongtaek-Siheung Expressway Integrated Operations Management
Gyeonggi West Expressway
2019
- Jun
- Gyeonggi West Expressway Integrated Operations Management
- Jun
- Gyeonggi West Expressway (Suwon-Gwangmyeong Expressway) Integrated Operations Management
Palryong Tunnel
2018
- Nov
- Palryong Tunnel Integrated Operations Management
Cheonan-Nonsan Expressway
2016
- Nov
- Cheonan-Nonsan Expressway Integrated Operations Management
- Jul
- Yongin-Seoul Expressway Integrated Operations Management
- Mar
- Sujeongsan Tunnel Integrated Operations Management
Ulsan Grand Bridge
2015
- May
- Ulsan Grand Bridge Integrated Operations Management
2014
- Jun
- Established YIDO Co., Ltd. (Company Name Change)