Risk Management Analysis to Construction Project of Liliba Bridge Duplication in Kupang City

Kupang City is a municipality and capital city of East Nusa Tenggara Province, that currently has a rapid population growth, increasing activities and higher number of travels, therefore, it is necessary to improve road facilities and its infrastructure. The implementation of Liliba Bridge Duplication work uses APBN funding source through the Regional Road of Presidential Instruction (Impres) program with a work contract value of Rp. 72.413.655.000, -. The construction work of Liliba Bridge Duplication is unavoidable will cause many risks along its implementation, especially this construction will take place on an active route in the city center crossing with very dense traffic and large use of heavy equipment and sophisticated machinery. The selected method that will be used in data management and initial data exploration of this study was the Work Breakdown Structure which divided into two methods of ISO 31000 and House of Risk (HOR) to identifity, assess, mapping, classifying and mitigating the risks. Based on the identification results, there were 134 risks identified and can occur during the Liliba Bridge Duplication project. Verification using the first questionnaire distributed to 30 respondents revealed 84 relevant risks and further action (the analysis) succeeded to identify 11 risk agents at the highest level. From the 11 risk agents, their ARP value were calculated using House of Risk (HOR) Stage 1, resulting in 6 dominant risk agents with the highest values: (1) A10 with ARP value of 279, (2) A11 with ARP value of 252, (3) A8 with ARP value of 225, (4) A9 with ARP value of 144, (5) A6 with ARP value of 130, and (6) A7 with ARP value of 120. Three main mitigation strategies for risk mitigation were found, such as wearing appropriate personal protective equipment (PPE) such as gloves, safety shoes, safety helmets or safety googles and safety belts (PA1), held training related to Occupational Safety and Health (OSH) (PA2), and ensuring cafeful material procurement planning (including listing of type, quantity, and time of delivery), tracking material deliveries to guarantee timely arrival and preparing a sufficiently large and organized material storage area (PA3).