The largest ongoing stadium project in Indonesia faces a new challenge as there is only two months to complete the most complicated part: assemble and raise the roof.

Andi Muhammad Yusri Ramli, who coordinates the construction of Stadion Batakan (Balikpapan), this week revealed the latest plans for the project. Within just two months from now, the 40,000-capacity stadium should have its roof in place.

It’s the most complex phase, because large trusses need to be assembled on site and then lifted onto four concrete towers dominating the site. If everything goes as planned, opening scheduled for August shouldn’t be threatened with further delays. But so far the stadium is already 2 years late.

Current progress rate is said to be 82%, with all of the concrete works complete. Double-tiered stands will begin to be equipped only after the roof is in place. Same goes for the future field of play, which will be worked on once the roof installation is over.