oa Civil Engineering = Siviele Ingenieurswese - Gautrain - geosynthetic reinforced platform
The multi-billion rand Gautrain rapid rail link has been designed to traverse some 80 km linking the OR Tambo International Airport, Johannesburg, Pretoria and Sandton. The leg between Pretoria Station and Centurion Station crosses an area known as Snake Valley. This area has never been developed as a residential township due in part to the underlying dolomitic substrate. A number of sinkholes have occurred in this vicinity and in 2006 a sinkhole event led to the temporary closure and realignment of the N14 national highway which runs through the area.
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