The Tsing Lung Bridge was designed and planned between 1999 and 2002 to provide a second road link to Lantau Island in Hong Kong and the International Airport at Chek Lap Kok. A suspension bridge with a steel superstructure was proposed with a main span of 1418 metres. Each side spans would be 220m long.

Bill Brown and B2 worked in an engineering team for the review, design and proposed bridge construction with Chodai of Tokyo and Maunsell of Hong Kong. Bill was tasked with preparing the essential design drawings and continued his design development of the twin-box deck and undertook extensive wind tunnel testing. He created an advanced shallow streamlined deck to carry a three-lane highway for the Hong Kong Highways Department. The bridge was originally planned for completion in 2008 but has yet to be constructed.

Derivatives of Bill’s twin-box bridge deck design have subsequently been used on other bridges in China. He attempted to patent his designs and continued design protection up until his passing in 2005.