PT Wijaya Karya (Persero) Tbk (WIKA KSO) continues to speed up the construction of the IKN 3B-2 Toll Road connecting the Kariangau area to Tempadung Junction. This national strategic project is one of the main veins in supporting connectivity to the Archipelago's National Capital Region (IKN). This project is also proof of the Company's commitment to supporting the community's economy through job creation and empowerment of MSMEs, to construction innovation to create sustainable development.
Designed to stretch along 7.3 kilometers, the IKN Section 3B-2 Toll Road includes a number of strategic construction points. One of them is the construction of the Kariangau Interchange which is an important node of regional connectivity, as well as the construction of 2 animal bridges as a commitment to environmental sustainability. For information, the animal bridge is a structure designed for wildlife to cross the toll road without disturbing human mobility. This aims to reduce wildlife being hit by vehicles and increase the safety of toll road users.
As of May 2025, the physical progress of the project has reached 62%, ahead of the planned target. One important milestone that has been achieved is the completion of the Slab On Pile structure at STA 6, 7, and 9, which spans 1.26 kilometers. In addition, work on the Animal Bridge at STA 8 and 10 showed significant progress, with progress of 62.4% and 53.7% respectively. Topping off of the right side Arc Slab castings for both bridges has also been successfully carried out to mark the progress of the main structures.
The project also saw significant achievements in the Kariangau Interchange area. Several access ramps and bridge structures in key zones have achieved varying progress, with some ramps recording achievements above 60%. With a strategy of simultaneous work at various points, the acceleration of this toll road construction is expected to be optimally maintained.
In supporting the efficiency and quality of work, WIKA carries various innovative construction technologies and methods. Among these is the use of an 8 mm thick Corrugated Steel Plate on the Satwa bridge structure, which doubles as formwork and an integral part of the 1 meter thick curved concrete composite structure. In addition, foam mortar with a specific gravity of 0.8 tons/m³ was used, which is lighter than water and can reduce the structural load by 31,200 tons compared to conventional methods. The 216-meter span steel structure by PT Wijaya Karya Industri & Konstruksi (a subsidiary of WIKA) for the access ramp overpass is also one of the advantages of this project.
Not only focusing on construction, the IKN Section 3B-2 Toll Road project also has a direct impact on the surrounding community by involving 437 local workers. WIKA also cooperates with MSME players from the area around IKN, including Balikpapan and Samarinda, to support the project supply chain from logistics to daily worker consumption.
As part of the effort to maintain environmental stability and sustainability, the IKN Toll Road Section 3B-2 project is also equipped with a slope retaining structure designed to anticipate potential landslides due to high rainfall. This structure is strengthened through greening with hydroseeding and taplok methods, which effectively grows ground cover vegetation to strengthen soil binding capacity and prevent erosion. This effort also reflects WIKA's commitment in applying the principle of green construction to every element of development, so that it not only creates resilient infrastructure, but is also environmentally friendly and sustainable.
"Apart from being oriented towards connectivity between regions, the IKN Section 3B-2 Toll Road Development also carries the spirit of sustainability and collaboration with local communities. WIKA believes that infrastructure built with the principle of sustainability will provide long-term value, both from an environmental, social and economic perspective," said Agung Budi Waskito (BW), President Director of WIKA.