In order to ease the traffic flow along this section of the national road, a twin bridge was planned to carry westbound traffic and were constructed of dune sand which needed to be contained.
A twin bridge was planned to carry westbound traffic. This was to ease the traffic flow along this section of the national road. A twin bridge were constructed of dune sand. This was to ease the traffic flow along this section of the national road. This dune sand needed to be contained.