Study works for Balikpapan-PPU toll bridge construction is still work in progress.

Unlike previous plan Balikpapan-PPU tunnel an option. A bridge is feared to disrupt the shipping lanes in Balikpapan Bay and Sultan Aji Muhammad Sulaiman Airport (SAMS) Sepinggan Balikpapan flight path.

Only problem is tunnel is very expensive. 7.35 kilometers Balikpapan-PPU Bridge only costs Rp. 15.35 trillion.

"This is still being studied, because it depends on the BEP (break event point). Can we return capital or not, which will wake up later. So haven't had time to gather these people (IKN Infrastructure Planning Task Force), "said the former head of the Pontianak XX National Road Implementation Center (BPJN) write PR Kaltim. He says if the toll bridge continues to be built in its original location, namely Melawai on the Balikpapan side and Nenang on the Penajam side, then a tunnel must be built.

https://kaltim.prokal.co/read/news/374177-ada-opsi-jembatan-teluk-balikpapan-diganti-jadi-terowongan-bawah-laut