Engineering economics feasibility analysis of the Takisung Bridge construction package in South Kalimantan Province

Department of Engineering and Industry, Study Program in Road and Bridge Construction Engineering Technology, Tanah Laut State Polytechnic, South Kalimantan 70815, Indonesia

^* Corresponding author: theriqaf@gmail.com

Abstract

The development of transportation infrastructure, particularly bridges, plays a strategic role in enhancing regional connectivity, accelerating economic growth, and supporting the tourism sector. The Takisung Bridge in Tanah Laut Regency, South Kalimantan Province, serves as the primary access to the Takisung Beach tourist destination and has suffered damage due to seawater abrasion. This deterioration has limited the bridge's functionality in facilitating community mobility and sustaining local economic distribution. The objective of this research is to analyze the engineer economic feasibility of the Takisung Bridge development project, ensuring that the benefits accrued to the community outweigh the costs incurred. This analysis employs the Discounted Cash Flow (DCF) method with evaluation parameters including Net Present Value (NPV), Benefit-Cost Ratio (BCR), and Internal Rate of Return (IRR). The data used in this study includes secondary data from bridge planning documents, as well as primary data from Average Daily Traffic (ADT) surveys to calculate Vehicle Operating Costs (VOC) as a project benefit. The research findings indicate that the Net Present Value (NPV) is positive and the Benefit-Cost Ratio (BCR) meets the feasibility criteria, signifying that the bridge construction project is economically viable.