CSI Ingenieros was hired to carry out the detailed engineering of the overpass traffic interchange in the access of La Floresta. The project consisted of elevating Route 35 over Route Interbalnearia through an embankment and save the double lane road with a 40 m long structure with a protected intermediate support in the median strip. The interchange allows all maneuvers to be done through four connecting branches and two rotary road intersections - on each side - over Route 35. It also comprised a bikeway for bikers and pedestrians pursuant to accessibility regulations. Since the existing public strip had to be respected, almost vertical embankments had to be erected which were constructed using reinforced soil and concrete blocks finish. Drainage with special structures to capture and direct rainwater were projected.