As Hong Kong’s urban area continued to extend into the New Territories, new MTR stations were commissioned to link the expanding communities. The Kwai Fong and Kwai Hing station foundations and viaducts involved a design-and-build contract.

The 1,200-metre viaduct segment was designed using a continuous pre-stressed structure. The average length of each span was more than 30 metres.

Both stations were designed with the passenger concourse below an elevated platform deck.