The Regional Disaster Management Agency of Sawahlunto City reported that a landslide occurred in January 2024, resulting in the closure of access to the Provincial Road in Lubang Panjang, Berangin District, Sawahlunto City, West Sumatra Province. According to the disaster-prone map of the residential area on Lubang Panjang Road, Sawahlunto is located in a high vulnerability zone for landslides. The slope in this area exceeds 40 degrees, indicating unstable conditions. The landslides affected several roads and caused trees to fall, hindering traffic and impacting socio-economic activities. This study aims to identify the slope stability and propose mitigation strategies for repairing the affected roads. The research method involved analyzing slope stability before and after the implementation of slope reinforcement. Field observations were conducted to assess the slopes, and data collection was performed to obtain geological maps and soil data for Sawahlunto City. The analysis results show that the existing condition has a slope safety factor below the stable threshold (Safety Factor < 1.2). Slope stability increased significantly after the reinforcement simulation with a 6-m-high cantilever retaining wall. This study's conclusion recommends applying permanent reinforcement structures as an effective mitigation measure and supports landslide disaster risk reduction in prone areas.