A challenge for engineers

It surely must be very difficult to design and make roads in this part of Spain.
On the mountain slope on the left, three roads can be seen: the highest one is now closed because of repairs on one of the huge bridges that flies over the Rules Reservoir.
That's why the road in the middle, which was closed a few years ago, has been reopened during repairs.
The lowest road was so narrow and so dangerous that it was nearly an adventure to drive on it to go from Granada to the coast.
A real challenge for them!