Reinforced-concrete protection-frame of the oil pipeline, as a train overpass to the new high-speed Dammam-Jubail railway line, in Saudi Arabia.
It is about 8 meters long, 32 meters wide and skew-shaped.
An integral structure of reinforced-concrete, based on a flat foundation on soil-surface.
The concreting of the roof-deck was carried out onto prefabricated reinforced-concrete slabs.
This makes the construction economical and easy to maintain.