Damage Condition Analysis Of Semparuk – Bentunai Road With Surface Distress Index (SDI) And Bina Marga Method

Road infrastructure plays a vital role in socio-economic development but is highly prone to deterioration caused by aging, drainage deficiencies, and increasing traffic loads. This study analyzes the damage condition of the Semparuk–Bentunai Road, a 20.7 km Class IIIA district road in Sambas Regency, focusing on a 3.2 km section identified as severely damaged, using the Surface Distress Index (SDI) and the Bina Marga method. The SDI assessment revealed two dominant types of damage, namely cracking (16.58 m² or 0.16%) and potholes (372.53 m² or 3.58%), with segments 1–20 categorized as severely damaged requiring reconstruction, and segments 21–26 categorized as moderately damaged requiring routine maintenance. In comparison, the Bina Marga method identified six types of damage, including alligator cracks (7.63 m²), transverse cracks (1.05 m²), longitudinal cracks (5.96 m²), edge cracks (1.86 m²), potholes (372.53 m²), and grain release (0.08 m²). The calculated Priority Order (PO) value was 12, indicating the road falls under the Routine Maintenance Program, with recommended treatments such as paving, crack filling, pothole patching, and leveling in accordance with the 2011 Bina Marga Standard. Both methods consistently identified potholes as the most critical form of distress, although the SDI approach emphasizes severity-based classification while the Bina Marga method provides a more comprehensive prioritization framework. The integration of both approaches is therefore recommended to support effective road asset management and the formulation of maintenance strategies tailored to actual field conditions.