Sha Tin Heights Tunnel

Eagle's Nest Tunnel
Toll plaza and north portal of Eagle's Nest Tunnel
Chinese	尖山隧道
Transcriptions Standard Mandarin Hanyu Pinyin Jiānshān Suìdào Yue: Cantonese Yale Romanization jīm sāan seuih douh Jyutping zim1 saan1 seoi6 dou6

Sha Tin Heights Tunnel
Northern portal of Sha Tin Heights Tunnel
Traditional Chinese	沙田嶺隧道
Simplified Chinese	沙田岭隧道
Transcriptions Standard Mandarin Hanyu Pinyin Shātiánlǐng Suìdào Yue: Cantonese Yale Romanization sā tìn léng seui dou Jyutping saa1 tin4 leng5 seoi6 dou6

Eagle's Nest Tunnel and Sha Tin Heights Tunnel are road tunnels in the New Territories of Hong Kong. Both tunnels were officially opened on 21 March 2008. The tunnels connect Cheung Sha Wan through Eagle's Nest hill to Tai Wai, and are linked by a shared toll plaza. Eagle's Nest Tunnel is connected at its southern end to Stonecutters Bridge and Ching Cheung Road, whereas Sha Tin Heights Tunnel is linked at the northern end to Che Kung Miu Road and Tai Po Road. The tunnels are part of the Tsing Sha Highway of Route 8, and were constructed in anticipation of future traffic demands generated by development in the northeast New Territories. The combined toll for the two tunnels is HK$8 (for private cars).

The contract for the construction of the Eagle's Nest Tunnel was awarded to a joint venture between Leighton Contractors (Asia) Limited and Kumagai Gumi Company Ltd. Construction began in October 2003 and the estimated cost of the project is HK$1.84 billion.

The project comprises two 2.1 km, three-lane tunnels from Butterfly Valley to Sha Tin Valley through Eagle's Nest mountain (granite), and all the associated electrical, mechanical and landscaping works that will be necessary. The project was scheduled for completion in April 2007. The full scope of the construction project includes:

Sandvik Tamrock Corp supplied five new Tamrock Axera tunnelling jumbos for the Eagle's Nest tunnelling project. The first unit is a Tamrock Axera T08, a two-boom jumbo with basket boom and Tamrock Computer Aided Drilling (TCAD) instrumentation. This unit is used at the ventilation shaft and was delivered in April 2004. The remaining four units are all Tamrock Axera T12DATA - three-boom fully computerised jumbos with basket booms. These units were delivered to the site in summer 2004 and are being used in the main tunnel with two units drilling side-by-side for the cross section area of height 11.8m and width 16.3m.