After a technical report by German structural engineer and roof specialist SBP revealed structural flaws in the roof of the stadium in Rio de Janeiros' Engenho de Dentro neighborhood, Mayor Eduardo Paes ordered the facility to be closed until the necessary repairs are completed. The engineers' report was ordered by Odebrecht and OAS, members of the Brazilian consortium that is rehabbing the six-year-old facility to host track-and-field events for the 2016 Summer Olympic Games. When he announced the shutdown in late March, Paes said the corrective measures would not affect the opening of the Olympics.
Structural analysis revealed corrosion in steel tubes that are part of the roof support system. The stadium's cover comprises forty-two 50-meter-long trellised scissors held by beams. With those elements, the structure forms a triangle that provides lateral stability to the large arches, which are composed of two 221-m-long and two 163-m-long circular tubes. Loads imposed by winds exceeding 63 kilometers per hour could cause the tubes to fail, according to the report.