The Grindulu River, the largest and longest river in Pacitan Regency, flows into the southern coast of Java and has long been prone to flooding and riverbank erosion. To mitigate these risks, flood control infrastructure such as stone parapets and cliff protectors was built in 2009-2010 at critical locations. However, erosion remains a serious issue, especially at outer bends of the river, where it threatens existing embankments, parapets, and densely populated settlements. Recognizing the urgency of further protective measures, the Directorate of Water Resources under the Ministry of Public Works and Public Housing (PUPR) initiated the Flood Control Project for Grindulu River and Its Tributaries in 2023. Managed by the Bengawan Solo River Basin Center through the Specific Non-Vertical Work Unit for the Implementation of the Bengawan Solo Water Source Network, the project was closely monitored by a Supervision Consultant Team to ensure compliance with technical specifications, quality standards, and contractual obligations.

The flood control construction work was successfully completed by October 20, 2023, achieving 100% physical completion, while 95% of financial obligations were met, with the remaining 5% allocated for the maintenance period. During this period, contractors are responsible for maintaining gabion structures, ensuring they remain clean and free from debris such as logs and bamboo clumps that could compromise their integrity. They must also replenish any loss of gabion filling to maintain structural solidity and conduct regular inspections after flood events to identify potential weaknesses and prevent further damage.

By implementing sustainable flood control measures, the Grindulu River Flood Control Project enhances disaster resilience, protects local communities, and safeguards critical infrastructure from future flooding. The integration of technical supervision, structural reinforcements, and proactive maintenance strategies ensures long-term flood mitigation for Pacitan Regency, securing both residential areas and key transportation networks.

Status: 100% Completed – Maintenance Period Ongoing