Construction World December 2018

Consulting Engineers

HIGHLY COMMENDED

T he route traverses flat to rolling terrain with very shallow cuts and fills over most of its length. There are two passes where there are deep cuts and fills. The road section through the Kranspoort Pass has a high accident rate due to the sharp bends located at the bottom of the pass. These bends are preceded by a sustained downgrade, resulting in runaway trucks not being able to negotiate the bends. Many lives have been lost on this pass. In addition, the pass has to be closed for long periods of time when the resulting wreckage needs to be cleared. Due to the extensive nature of the distress of the road pavement over this section of the route and the fact that the surfaced roadway was only 7 m wide, it was decided to carry out a rehabilitation of the road. The safety improvements within the Kranspoort pass was a major HHO was appointed in 2010 by the South African National Roads Agency Limited (SANRAL) to carry out design upgrades of the 54 km of road between Middelburg and Loskopdam (N11 - Section 10) in the province of Mpumalanga. UPGRADE ON N11 SECTION 10 FROM MIDDELBURG TO LOSKOPDAM

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