With 10 May’s announcement that the process of installing the pieces of the stadium roof’s compression ring has begun, the Estadio do Maracana has added its name to the list of FIFA Confederations Cup Brazil 2013 venues where work is being carried out on their uppermost tiers.

At the Estadio Castelao in Fortaleza, the Estadio Mineirao in Belo Horizonte and the Arena Fonte Nova in Salvador, the process of installing the material required to put their roofs in place has also already begun.

In the case of the Maracana, 60 pieces will be used to support the roof, while the roof project at the Castelao will also require the placement of 60 pillars. On 2 May, the administrators of the Fortaleza-based venue announced that half of the roof’s steel porticos have been hoisted into place.

Since October last year, work has been carried out on putting discs into place on the stadium roof of the Mineirao. Support trellises are set to be attached to these discs, with the trellises arriving at the site on 2 May.

The pieces are being put together and will be hoisted into place over the coming weeks. The next step will therefore entail the attachment of a translucent and self-cleaning membrane to the aforementioned tubular steel trellises.

The installation of the roof at the Arena Fonte Nova, which is scheduled for this month, was started in April. To date, three support modules have been put into place in the eastern sector of the arena. The entire metallic structure and the steel cables required for the roof’s installation can now be found at the construction site.

The Estadio Nacional de Brasilia, which is set to host the opening match of Brazil 2013, is also upwardly mobile. Indeed, the installation of the upper rows of seating in the stadium’s stands began on 27 April.

Since that day, 20 workers have been busy hoisting up the pieces with the help of a crane able to bear up to 650 tonnes in weight. The upper rows of seating in the Estadio Nacional will be able to hold more than half the stadium’s spectator capacity: 39,000 of 70,064 people.

The fact that construction on the FIFA World Cup™ stadiums has been taking place higher up has led to many of the cameras used to monitor the ongoing work being moved to different positions.

This has meant that, for the architects and engineers that follow the progress of the various projects from Local Organising Committee headquarters, rather than the previous wide-angle view, the two cameras at each arena have now been moved into higher positions or been focused on specific areas of the work sites.

Check out the image gallery on the right-hand side for photos of the construction works at the Estadio do Maracana, Estadio Mineirao, Arena Fonte Nova, Estadio Castelao and Estadio Nacional de Brasilia.