Samarinda Tunnel () or Selili Tunnel (), is a road tunnel construction project in

Samarinda Samarinda is the capital city of the Provinces of Indonesia, Indonesian province of East Kalimantan on the island of Borneo. The city lies on the banks of the Mahakam River with a land area of . Samarinda was one of Indonesia's top ten City qu ...

East Kalimantan East Kalimantan (Indonesian language, Indonesian: ) is a Provinces of Indonesia, province of Indonesia. Its territory comprises the eastern portion of Borneo/Kalimantan. It had a population of about 3.03 million at the 2010 census (within the cu ...

, Indonesia, connecting Sultan Alimuddin Road (Sambutan,

Sambutan Sambutan () is a district of Samarinda, East Kalimantan, Indonesia. As of 2023, it was inhabited by 62,429 people, and currently has the total area of 100.59 km2. It was separated from Samarinda Ilir on 14 December 2010. Its district seat is ...

) and Kakap Road (Sungai Dama, Samarinda Ilir). Dubbed as the first road tunnel in the island of

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

, it has a length of 690 meters, with width and height each 15 meters. The construction of this tunnel uses

new Austrian tunneling method The new Austrian tunneling method (NATM), also known as the sequential excavation method (SEM) or sprayed concrete lining method (SCL), is a method of modern tunnel design and construction employing sophisticated monitoring to optimize various wa ...

(NATM) and it is currently done by .

History

On 20 January 2023, a ground breaking attended by mayor of Samarinda Andi Harun, as well as other local officials, marked the start of tunnel's construction. Andi stated that the tunnel was intended to resolve traffic jams at Otto Iskandardinata Road, but also meant to connect Achmad Amins Bridge with the downtown of Samarinda. The work contract period lasts between 18 and 22 months, worth 395,792,799,000 rupiahs. In December 2024, the government of Samarinda additionally announced plans to widen Otto Iskandardinata Road, Sejati Road, and Sultan Alimuddin Road. On 12 February 2025, vice president of Indonesia

Gibran Rakabuming Raka Gibran Rakabuming Raka (born 1 October 1987) is an Indonesian politician and businessman who has been 14th Vice President of Indonesia, vice president of Indonesia since 2024. Previously the 18th mayor of Surakarta from 2021 to 2024, he is the e ...

together with his wife Selvi Ananda, visited Samarinda Tunnel, and his team distributed books and clothing to the crowds. At the moment, its construction progress had reached 86.3%. Also, Andi announced commissioning for the tunnel in May or June 2025. On 12 May 2025, following heavy rains, Samarinda Tunnel suffered a landfall right of its inlet at 09:30 p.m., leading to a conclusion that the tunnel is located at a talus deposit.

References

{{reflist Buildings and structures in Samarinda Tunnels in Indonesia