Thirteen major rivers flow northwards through Jakarta into the Java Sea. The 13 rivers, together with a large number of drainage channels, form the macro drainage system of Jakarta. Due to inadequate maintenance and poor solid waste management, there is significant sediment and solid waste build up in these channels. In addition, urbanization trends are central to the causes of floods in Jakarta which have led to the deterioration of several critical factors. The encroachment and/or development of critical catchment areas have resulted in both increased rainwater runoff and lack of natural storm water retention areas both within the city and in upstream areas of the catchment. Flood events in Jakarta are expected to become more frequent in coming years, with a shift from previously slow natural processes with low frequency to a high frequency process resulting in severe socio-economic damage.
The project will comprise of two components:
- Dredging and rehabilitation of 11 floodways and canals, and four retention basins identified as priority section of the Jakarta flood management system in need of urgent rehabilitation and improvement in flow capacities. The dredge materials will be transported and disposed into proper disposal sites. Where necessary, mechanical equipments (pumps, gates, etc.) will be replaced or repaired.
- Technical assistance for project management, social safeguard, and capacity building. This component will support contracts management, engineering design reviews, construction supervision engineers for the dredging and rehabilitation works and technical assistance. Technical assistance includes support to improve institutional coordination for operations and maintenance of Jakarta’s flood management system as well as the establishment of a Floods Management Information system
Fifteen priority floodways, canals and retention basins in Jakarta will be included in the scope of the project. (Click for detailed map):
The Bank for Reconstruction and Development will contribute US$139.64 million and US$0.50 million bilateral grant while the Government of Indonesia will contribute US$49.71 million.
Toward the Future
The project will be implemented by Ministry of Public Works of Indonesia and the Government of Jakarta. It is expected to effectively start in May 2012 and completed by March 2017.