Eagle's Nest Tunnel

Eagle's Nest and Sha Tin Heights Tunnels
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

Eagle's Nest and Sha Tin Heights Tunnels
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 sa1 tin4 leng5 seui6 dou6 Jyutping saa1 tin4 leng5 seoi6 dou6

Eagle's Nest Tunnel is a road tunnel in the New Territories of Hong Kong, while Sha Tin Heights Tunnel is a road tunnel with a shared toll.

Both tunnels were officially opened on 21 March 2008. The Eagle's Nest tunnel connects Cheung Sha Wan and Sha Tin Valley through Eagle's Nest hill in Hong Kong in anticipation of future traffic demands generated by development in the northeast New Territories. It links south to Stonecutters Bridge and Nam Wan Tunnel, and north to Sha Tin Heights Tunnel to form a series of highways. The tunnel is part of Route 8. The combined toll for the two tunnels is HK$8 (private cars).

The Sha Tin Heights Tunnel is part of Route 8. The tunnel spans from a toll plaza in Sha Tin Valley through Sha Tin Heights to Tai Wai. The Tai Wai entrance is near Pak Shek, with roads connected to Che Kung Mui Road and Tai Po Road.

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.