Category: Supervision Project

The Waemese River, located in West Manggarai Regency, Flores Island, is a critical waterway within the Flores River Basin, designated as a National Strategic River Area. However, during the rainy season, the river frequently experiences severe flooding, inundating residential areas, agricultural land, and public infrastructure such as highways, offices, and irrigation systems. The persistent riverbank erosion is driven by multiple factors, including rainfall intensity, watershed slope, river morphology, and land use changes. Additionally, soil characteristics and runoff coefficients play a crucial role in determining sediment transport and overall flood impact.

To mitigate the effects of riverbank erosion and destructive water forces, and in response to community requests submitted through the West Manggarai Regency Government, the Directorate General of Water Resources, Ministry of Public Works and Public Housing (PUPR), through the Nusa Tenggara II River Basin Center, has initiated the Continued Development of Flood Control Infrastructure for the Waemese River in Labuan Bajo, West Manggarai Regency. This initiative requires close supervision by a qualified consultant to ensure that the construction adheres to technical standards, sustainability principles, and coordinated project management.

The project mandates the involvement of certified contractors and consultants, with the required qualifications being Intermediate-level Business Entity Certification and expertise in Civil Engineering Construction Work Supervision (RE203 Sub-Classification). The implementation of this project demands efficient operational management, phased execution, and strict quality control, ensuring that all flood control measures are effective, sustainable, and aligned with national water resource management goals.

Status: 100% Completed – Flood Control Infrastructure Fully Operational

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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

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To enhance community welfare and flood resilience, the Brantas River Basin Center has been actively managing water resources and flood mitigation efforts across Jombang Regency. The region is traversed by major rivers, including the Brantas River and its tributaries: Konto River, Jarak River, Pakel River, and Gunting River, as well as key reservoirs such as Kepuhrejo, Grogol, Sidowayah, and Brumbung Reservoirs. Among these, the downstream Konto River in Bandar Kedung Mulyo is a critical transportation corridor, hosting the Surabaya-Madiun highway bridge and railway bridge.

The 2021 flood event along the Konto River was one of the worst in the last decade, significantly impacting areas downstream of Selorejo Reservoir, from Ngantang, Malang Regency, to Bandar Kedung Mulyo, Jombang Regency. To address these issues, the 2023 Budget Year allocated funding for flood control infrastructure supervision through the Brantas River Basin Center under the SNVT Implementation of the Brantas Water Source Network. The project was contracted under Unit Price Contract No. PB.03.01-Am.07.3/2023/SPV Konto, awarded to PT. Globetek Glory in collaboration with Atrium Architect Consultant and Karya Gemilang.

The Flood Control Construction Supervision for the Downstream Konto River was conducted over eight months (March 28 – November 24, 2023), focusing on ensuring technical compliance, construction quality, and timely completion. The supervision consultant was responsible for:

✔ Monitoring and controlling construction quality to meet technical standards.

✔ Conducting design revisions to optimize budget use, adjust dimensions, and enhance structural integrity.

✔ Improving safety and functionality for long-term flood protection.

✔ Ensuring smooth project execution by coordinating material stockpiling, site access, and workforce readiness.

✔ Engaging local communities through coordination meetings to facilitate land use, village roads, and material transport.

The project supervision underwent two contract revisions due to necessary adjustments in design specifications, construction methodology, and site conditions. By integrating expert technical personnel, community involvement, and adaptive engineering solutions, this initiative aims to enhance flood resilience, infrastructure sustainability, and environmental safety in Jombang Regency.

Status: 100% Completed – Construction Supervision Successfully Executed

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Performance evaluation is a continuous process conducted by the Operation & Maintenance (OP) Implementing Unitto assess the effectiveness, efficiency, and quality of river infrastructure management. This evaluation ensures accountability in budget utilization, improves service effectiveness, and measures community satisfaction. Conducted at the end of the inventory survey period, the evaluation involves verifying data and comparing it with standardized performance benchmarks. The assessment process determines whether the river infrastructure requires preventive, corrective, or rehabilitative maintenance, ensuring optimal operation and long-term sustainability.

The evaluation serves multiple functions, including ensuring the proper use of OP funds, allowing the Supervisory Directorate to monitor fund allocation, enhancing performance within the OP unit, and measuring public satisfaction with OP services. Performance assessment relies on four key factors: organizational capacity, which examines available resources; organizational productivity, which evaluates service efficiency and effectiveness; service quality, which reflects community satisfaction levels; and responsiveness, which assesses how well OP units accommodate public concerns and adapt to changing environmental conditions.

The performance evaluation process is carried out using a structured periodic reporting system that provides insights into strategic achievements, performance gaps, and improvement areas. By integrating input, process, output, and outcome indicators, this initiative ensures that OP activities align with national water resource management policieswhile maintaining high operational standards. Ultimately, this evaluation framework strengthens sustainable infrastructure management and disaster resilience, supporting reliable flood control and water distribution services.

Status: Ongoing – Continuous Performance Monitoring & Optimization

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