The Mekong Delta is Vietnam’s rice bowl. It is Vietnam’s third largest industrial center and one of the world’s most productive agricultural and aquaculture areas. To sustain and promote this economic growth, the Mekong Delta’s transport network required a major upgrade. With the support of the Asian Development Bank (ADB) and the Australian government, the $928 million Central Mekong Delta connectivity project (CMDCP) was developed.
The CMDCP is Vietnam's most significant construction project to date and involves substantial development to the transport infrastructure in the region. It covers 28.84 kilometers and involves three components:
The six-lane, 7.8-kilometer Cao Lanh cable-stayed bridge over the Tien River, including approach roads. The main span length is 350 meters with 150-meter side spans and a maximum height above high water level of 37.5 meters. There are also six secondary bridges.
A 15.68-kilometer-long connecting road between the two bridges, with 17 secondary bridges and interchanges; and
The six-lane, 5.36-kilometer Vam Cong cable-stayed bridge over the Hau River, including the southern approach road. The main span length is 450 meters with 210-meter side spans and a maximum height above high water level of 37.5 meters.
CDM Smith has been awarded the detailed design, construction supervision and consulting services contract for the ADB-funded package of the first and second components and part of the design for the third. This includes the detailed design of the complete expressway of the Cao Lanh bridge and connecting roads and bridges, preparation of contract documents, assistance in the contractor procurement, construction supervision, updates to the environmental impact assessment, environmental management plan, resettlement plan, ethnic minority development plan and other social development plans.
The design involves bored pile foundations with a depth of 115 meters and a 2.5-meter diameter and embankments in deep soft compressible soil. The construction is underway with a scheduled completion date of late 2017. Within 5 years of completion the CMDCP will directly benefit more than 5 million people and deliver improved transport facilities to 17,000 daily road users.