Package CB3, DASH Highway is located in Mutiara Damansara, southwest of Kuala Lumpur, Malaysia. Package CB3 is part of DASH which covers from CH.14340.00 to CH.16238.848. This section plans to extend an interchange namely Surian Interchange inclusive of all ramps. The project is to construct viaducts on the existing roads with a length of 1898.848m and a branch length of about 400m.

The implementation of the project will largely alleviate and improve the traffic congestion in the existing roads in Damansara Perdana, Kota Damansara and Damansara area and will become the main road connecting places located in the Damansara Perdana. It will also bind several new development centres such as Empire Damansara, Perdana Business Center and Sunway Surian Avenue closer together.

RRIM’s development in the area is expected to increase population by 300,000 which will cause congestions to the existing routes. DASH CB3 will be part of a solution to this problem.