Introduction: Welang Basin
As one of the major river basins in East Java which has caused continuous flood challenges, Welang river basin is uniquely located in three administrative areas; Malang Regency, Pasuruan Regency, and Pasuruan City. The upstream region is located between Malang and Pasuruan Regency, the midstream is in the Pasuruan Regency, while the downstream is in Pasuruan City. Due to the various technical and social factors, it has been continuously flooding and caused a halt in the economic activities. Each section of Welang river, from upstream to downstream, has its own thematic challenges.
This page is dedicated to be the engagement platform between stakeholders in Welang River Basin and to share the Master Plan progress with wider audiences.
Pendahuluan: DAS Welang
Sebagai salah satu DAS utama di Jawa Timur yang kerap mengalami permasalahan banjir, DAS Welang secara unik terletak di tiga wilayah administratif; Kabupaten Malang, Kabupaten Pasuruan, dan Kota Pasuruan. Wilayah hulu terletak di antara Kabupaten Malang dan Pasuruan, bagian tengah di Kabupaten Pasuruan, sedangkan bagian hilir berada di Kota Pasuruan. Karena berbagai faktor teknis dan sosial, maka banjir seringkali menyebabkan terhentinya kegiatan perekonomian. Setiap ruas sungai Welang, dari hulu hingga hilir, memiliki tantangan tematiknya masing-masing.
Halaman ini didedikasikan untuk menjadi media interaksi antara pemangku kepentingan di DAS Welang dan untuk berbagi kemajuan Rencana Induk kepada khalayak yang lebih luas.
On this page, we will be posting program updates about specific projects, events, partners and other relevant news.
Communities in Northern Java are suffering from coastal erosion affecting hundreds of kilometres of coastline. In the district of Demak more than 3 kilometres of land including entire villages have already been swallowed up by the sea. In addition, the important nursery function of mangroves for several fish species was lost.
Our dream is to build a stable restored mangrove coastline that reduces erosion, can adapt to sea level rise and enables inclusive economic growth, so that communities in Demak are safe and can prosper. We do this through an inspiring Building with Nature pilot in which we trigger a paradigm shift towards water infrastructure solutions that align the interest of economic development with care for the environment.
Of the total population of 176 households, the majority of the people work in non-formal sectors as construction workers, traders, garbage collectors, farming, services. The percentage is 87%. The remaining 13% work in the formal sector. Education level of 49% graduated from elementary school, 23% junior high school, 18% senior high school, and 6% graduate from university (Diploma / Bachelor).
Public understanding of the use of recycled water for daily household activities is still minimal. The community believes in the quality of recycled water through processing results and uses it for purposes other than drinking and cooking, 36% for watering plants, 54% toilet rinsing, 3% washing clothes, 2% bathing, other 5% for washing vehicles. In motivating the community to change existing condition in their environment, whether related to the customs of society and the existence of technology that need to be adjusted is done by society approach through four stages, namely identification stage and location search of model application, pre-implementation stage of development, development stage, and maintenance and utilization stage .
The impact of the implementation of settlement area is expected to provide more benefits for the community in the research location and reduce disease rate caused by the use of clean water, waste water management and waste management
By the time it's finished, this dam can produce approximately 500 kW of hydroelectric power that can be utilized by surrounding community. In addition, it will produce 300 liters per second of raw water and irrigates 3,000 hectares, so the local community does not have to worry about the availability of clean water. Such system will be divided into two irrigation areas, namely Cileuweung area of 1,000 hectares and Jangkelok reaching 2,000 hectares of rice fields. The area of the dam of Kuningan dam covers 5 villages and 2 subdistricts, namely Cibeureum (Randusari Village, Kawungsari Village, Sukarapih Village) and Karangkencana Subdistrict (Tanjungkerta Village and Simpang Jaya Village) in Kuningan Regency. This project is under the supervision of Ministry of Public Works and Housing (PU).
The five-year programme will focus on the shoreline in Demak where sea level rise is projected to cause flooding 6km inland by 2100, inundating 14,700 hectares affecting over 70,000 people and the loss of 6000 hectares of aquaculture ponds.
Technical measures include the construction of permeable dams made of brushwood that capture sediment and help to establish a healthy sediment balance. This process is reinforced by small scale sediment nourishments. Once the near shore bed level has sufficiently risen, mangroves will regenerate naturally developing a natural water defense protecting the hinterland against flooding and further erosion.
By putting in place a model for sustainable land-use we aim to address the root causes to the erosion problems. As part of this various sustainable livelihoods activities will be initiated such as sustainable aquaculture. The measures will be governed under community bylaws and funding mechanisms and will be rooted in community development plans and integral government master planning for sustainable development.
Three phases of this mega project are as follows:
Phase A: Phase A focuses on improving the existing coastal protection. This includes the reinforcement and development of the existing coastal dams of 30 kilometers in length and the development of 17 artificial islands on the Jakarta Bay. The first phase was launched in the beginning of September 2014. The construction is planned to begin in early 2016.
Phase B: Phase B focuses on efforts to develop the west outer giant seawall planned to be constructed during 2018 through 2022.
Phase C: Phase C focuses on constructing east outer giant seawall planned for after 2023. Several long-term developments in the east of the Jakarta Bay are conducted by closing part of the bay in order to anticipate if land subsidence in the east part of Jakarta cannot be avoided. To reduce the impact due to the closure during construction, a part of the eastern giant seawall will be allocated for Tangerang-Bekasi toll road.
The call consists of the following documents:
The Call for Action is the start of a one-year inclusive and comprehensive competitive process to identify the most ground-breaking proposals and develop these into resilience projects. The Asian Infrastructure Investment Bank (AIIB) will help identify projects, support their development and facilitate their implementation.