Construction work on Qatar’s Khalifa International Stadium, which is scheduled to host games at football’s Fifa World Cup in 2022, has taken a step nearer to completion after the final piece of arch was put in place.

The multi-purpose stadium was built in 1976 and is being renovated in order to meet Fifa standards for World Cup stadia. The stadium will have a capacity of 40,000 once completed.

The restructured Khalifa International Stadium will feature two arches, having previously had one. Organisers said that a 600-metric-tonne “mega crane” was needed to install the final piece, which measures 22 metres and will be elevated 120 metres above the ground.

“Prior to lifting, the segment was tilted to the required angle at the ground level using a smaller crane,” Qatar’s Supreme Committee for Delivery & Legacy (SCDL) said in a statement. “Other major elements such as bottom, top compression rings and column segments were pre-assembled at site, also using smaller crawler cranes.”

Attention will now turn towards construction of the venue’s roof. Work is expected to be completed by the end of the year.

The SCDL said that Khalifa International Stadium, which will also be the host site for Qatar’s 3-2-1 Olympic and Sport Museum, would be the first World Cup stadium to be lit completely by LED lighting.