Road infrastructure underpins community mobility, economic activity, and public-service delivery, yet road-maintenance implementation continues to face fragmented data management, delayed condition updates, and weak support for evidence-based decision-making. This study analyzes the implementation of the SI KOI JANTAN database application (Sistem Informasi, Kondisi Jalan dan Jembatan) in improving road-maintenance data governance at the Department of Public Works and Spatial Planning of Blitar Regency, Indonesia, and its effectiveness in strengthening decision-making and reporting accountability under Regulation of the Minister of Public Works No. 13/PRT/M/2011. The study employed a descriptive qualitative approach. Data were collected through interviews with six purposively selected informants, comprising agency leadership, technical officials, the application operator, field personnel, and a road-user community member, together with observation and documentation, and analyzed using George C. Edward III's policy implementation model, comprising communication, resources, disposition, and bureaucratic structure, complemented by New Public Management and Good Governance perspectives. The findings show that SI KOI JANTAN has meaningfully improved data-management effectiveness through systematic road-condition recording, damage identification, maintenance prioritization, work monitoring, and reporting, marking a transition from manual to data-driven governance. Internal communication and coordination functioned effectively; resources and institutional support proved generally adequate, though human-resource capacity and technology infrastructure required further strengthening; implementers demonstrated positive commitment despite initial adaptation difficulty; and bureaucratic structure supported implementation, though cross-sector integration and standard operating procedures needed continued refinement. The study concludes that SI KOI JANTAN has become an important in