A wooden section of the roof for the Ariake gymnastics arena is elevated by several construction workers in this time-lapse photography work in Tokyo’s Koto Ward on Nov. 7. Another piece of the roof is prepared at the site. (Video footage provided by Tokyo 2020 and taken by Tatsuya Shimada)

The nearly 70-meter-long central section of what will become one of the largest roofs in Japan made a perfect landing on the Ariake gymnastics arena, a venue for the 2020 Tokyo Summer Olympics.

Huge cranes carefully lifted the 200-ton, arch-shaped piece and placed it on the yet-completed arena in Tokyo’s Koto Ward on Nov. 7.

The section, made of Japanese larch and other wood, measures 69.6 meters in length and 14.4 meters in width.

Additional sections will create a roof 90 meters long and 120 meters wide.

The arena, scheduled to be completed in October 2019, will be used for gymnastics events and boccia competitions during the Olympic and Paralympic Games.

After the sports event is over, the arena will be used as an exhibition venue and for other purposes for 10 years.