| Huguenot Tunnel |
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Geological Survey s and Design started in 1973 , and Excavation followed in 1984 , tunneling from both ends using Drilling and Blasting . The two Drilling Head s met with an error of only 3 Mm over its entire 3.9 Km length. The tunnel was finally opened on 18 March 1988 . In 2002 , traffic peaks occurred during Easter (a record on 26 April of 18 200 vehicles) and the December School Holiday s (12 000 vehicles per day). The toll as proclaimed in March 2004 was (given in South African Rand :
The tunnel has 13 Video Camera s that feed into an automatic Incident Detection System , which can sound Alarm s for any of the following conditions:
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