The project included the construction of a 600m long and 8m deep subterranean passage (underpass), including construction of two nos bridges each 38m long and 23m wide. The underpass was constructed on 1,760 nos. tension piles, 25m long driven up to 34m depths.
Diaphragm walls and special geotechnical applications were utilized to contain the high water level, reaching to almost 0.5m below ground.