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p-Index From 2021 - 2026
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This Author published in this journals
All Journal Nusantara Civil Engineering Journal
Novia Safitri
Politeknik Negeri Samarinda
Civil Engineering, Building, Construction & Architecture

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Bridge Condition Assessment and Prioritization using Bridge Management System in Kutai Timur Regency Aco Wahyudi Efendi; Novia Safitri; Muh Yusuf; Irwan Faisal Luzan; Azan Zubran
Nusantara Civil Engineering Journal Vol 4 No 2 (2025): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/nuce.v3i1.636

Abstract

This study evaluates the condition of 215 bridges across 18 sub-districts in East Kutai Regency using a Bridge Management System (BMS). Primary data was collected through visual inspections, analyzing element-specific (foundation, substructure, superstructure, and deck) and overall condition ratings. The bridge inventory is predominantly timber construction (48.37%) and features mostly short spans, though critical long-span bridges exist. Results indicate most foundation, substructure, superstructure, and deck elements are in good condition (ratings 1-2). However, a significant percentage of elements show moderate to severe damage (ratings 3-5), with 1.86% of decks and superstructures in critical condition. A bridge prioritization model was developed based on condition ratings and urgency. Strategic recommendations include data-driven maintenance planning, efficient budget allocation, and enhancing human resource capacity and technology for sustainable bridge asset management, minimizing infrastructure failure risks
Forensic Investigation of the Steel Pile Pipe of the Mahakam Dolphin After Collision Using Side Scan Sonar and Bathymetry Novia Safitri; Aco Wahyudi Efendi; Muh Yusuf; Irwan Faisal Luzan; Azan Zubran; Nova Amelia Putri; Amran
Nusantara Civil Engineering Journal Vol 5 No 1 (2026): Nusantara Civil Engineering Journal (January - June 2026)
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/nuce.v4i1.713

Abstract

The Mahakam River in Samarinda, East Kalimantan, Indonesia, is a critical maritime transportation route with high vessel traffic, increasing the risk of collisions with bridge protection structures like dolphins. This study presents a forensic investigation into the position and shape of steel pile pipes of the Mahakam Dolphin after a collision incident, employing integrated bathymetric and side scan sonar surveys. Conducted in April 2026, the survey utilized Garmin ECHOMAP UHD2 62SV and GT52HW-TM transducers for bathymetry, alongside side scan sonar for high-resolution underwater imaging. Results revealed a compact debris field of collapsed steel pile pipes and pilecap, covering approximately 500 m² with an average thickness of 1.5 m. Bathymetric data indicated significant riverbed alterations, including scouring and sedimentation patterns. The debris distribution analysis confirmed minimal dispersion due to low current velocities, posing navigation risks and potential structural instability to adjacent bridge piers. The study underscores the efficacy of combined geophysical techniques in post-collision forensic assessments and recommends relocating the dolphin structure to a debris-free zone. These findings provide actionable insights for maritime infrastructure management and collision impact mitigation
Co-Authors Aco Wahyudi Efendi Aco Wahyudi Efendi Amran Azan Zubran Irwan Faisal Luzan Muh Yusuf Nova Amelia Putri