The slide on the Interamericana Sur probably will not be reopened to traffic until at least Friday, road officials said Wednesday. They had hoped to open the section today.
In addition to a layer of clay and needed drainage work, workmen have to work around an underground fiber optic cable, said the Consejo Nacional de Vialidad. The clay becomes unstable when wet, which may be the way the outside lane of the two-lane highway slipped down a cliff in late January. The road is the most important highway in southern Costa Rica, and the collapse had caused truckers and others to make lengthy detours over secondary roads.
Even when opened, the new section will be temporary. However, asphalt will be laid down. Workmen have dug into the adjacent hillside to make room for a second lane.
The work is at kilometer 33 at a point known as La Cangreja.