Balikpapan  - Two students from the Civil Engineering Program at Institut Teknologi Kalimantan (ITK), Aldi Halim Rachmawanto and Jeremy Limanto, have brought pride to the university after winning 1st Place in the Nature-Based Solution for Water Resources Infrastructure Idea Competition 2025, organized by the Kalimantan River Basin Organization IV (BWSK IV). Guided by Afif Taufiiqul Hakim, S.T., M.Sc., the team presented an idea that stood out for its innovation and strong integration of technology.

Their work addresses the increasingly severe issue of coastal damage, particularly due to erosion and high waves. To tackle this problem, the team proposed a nature based approach by utilizing seagrass and sea kelp as natural sediment barriers. The concept is not only rooted in ecological principles but is also supported by advanced technology. They used Delft3D to simulate current patterns and sediment transport, HEC-RAS to analyze flow conditions and identify erosion-prone areas, and AI to determine the most effective locations for planting marine vegetation. These elements were combined into the Biogeomorphic Beach Nourishment framework an ecological restoration strategy based on natural sedimentation processes.

Aldi explained that their participation was not merely about competing but also about contributing to the campus and the wider community. He emphasized that climate change and coastal degradation are urgent issues, and students must demonstrate that the knowledge they gain can help solve real-world challenges. This achievement, he said, proves that ITK students are capable of producing relevant, applicable, and impactful solutions.

Their project documentation, including the proposal titled “Biogeomorphic Beach Nourishment using Seagrass Sedimentation via Coupled Delft3D Simulation and AI-Driven Seagrass Site Selection,” along with photos of the team and event documentation, has been submitted to the organizers. Aldi also expressed hope that this accomplishment will inspire other ITK students to continue exploring ideas, creating new works, and participating in meaningful competitions.

This achievement strengthens ITK’s reputation as an institution committed to fostering innovation in engineering and environmental sustainability. The success of Aldi and Jeremy serves as a reminder that dedication, creativity, and effective use of technology can lead to solutions that create tangible benefits for society.