Study on Hanoi water pollution and drainage management approaching closure

Hanoi has grown rapidly into a modern, vibrant city. It is also envisioned to become a centre of culture, science, education, economics, tourism and international trade in the Asia-Pacific region. However, the development of infrastructure and services has lagged behind the growth of the population, hindering the realization of such vision. In particular, sustainable water resources management is a major challenge. Water pollution and urban flooding have arisen as persistent environmental problems in Hanoi for years, impairing the liveability of the city, deterring investors and compromising social – economic development.

Hanoi City Drainage Master Plan addresses these two issues but its implementation has not kept pace with the growth of the problems. Making Hanoi a water pollution and flood free city by 2050 will require enormous and sustained investment and institutional reform.

In an effort to support Hanoi City to implement its Drainage Master Plan and to build resilience and sustainability in the City’s water resources management, in 2019, the World Bank commissioned ICEM to undertake a study on water pollution control and drainage and wastewater management in Hanoi. The study aims at developing an effective and comprehensive management and investment program to tackle water pollution in key rivers – To Lich, Nhue, Day and Tich, and improve drainage and wastewater management in prioritized locations – Long Bien and Gia Lam districts.

Through a series of stakeholder consultations, field inspections, and data analysis, the study team assessed the baseline conditions of water pollution in the four rivers and urban flooding and wastewater management in the two districts, delineated the causes, and identified bottlenecks in addressing such causes. The technical challenges include rapid population growth and urbanization, dwindling water resources in rivers, infrastructure deficit (i.e. shortage of wastewater […]

Setting a precedent for Strategic Environmental Assessment (SEA) in Rayong Province, Thailand

Early 2020 saw the completion of the milestone Asian Development Bank funded Strategic Environmental Assessment (SEA) of Rayong Province Development Master Plan & Revision of Thai Draft SEA Guidelines project. The project had two primary goals:

  1. To conduct a provincial wide SEA in Rayong Province, focusing on how the provincial development plan can be used to enhance provincial sustainability;
  2. To make recommendations and revisions to the Thai Draft SEA guidelines. The draft national guidelines were used and evaluated during the Rayong SEA, with the experience using them informing revisions to the draft guidelines

The Rayong SEA was undertaken at the request of Thailand’s National Economic and Social Development Committee (NESDC) in collaboration with Rayong Governor’s Office. The process highlighted the importance of SEAs in providing insights into provincial development planning by offering trade-off analyses and insights into relationships between economic, social and environmental goals.The lessons learned through the SEA process formed the basis for revising the national draft SEA guidelines, and the Rayong SEA will be a model for future assessments. Rayong Province lies within the Eastern Economic Corridor (EEC), an area encompassing the three eastern provinces of Chachoengsao, Chonburi, and Rayong. Since the mid-1980s the EEC has been promoted as a strategic industrial growth area. The new EEC Development Plan (2018) focuses on accelerating this growth through encouraging development of new industries, urban centres, expansion of ports and airports and new railway lines and highways. The end goal is to develop the region as an arterial hub for trade, investment and transportation. The Rayong SEA focused specifically on the current four-year Rayong Provincial Development Plan (RPDP), which has an implementation period through to 2021. The results of the Rayong SEA will inform the next five-year development planning […]

Driving socio-economic development forward in Nepal with resilient road networks – project completion

Nepal’s road networks are essential for boosting trade, connecting communities, improving access to services and economic opportunities, and facilitating national and regional integration. Improving the resilience of Nepal’s roads has therefore been prioritized by the Government of Nepal as a key driver for socio-economic development, a reason the World Bank supported the project Geohazard Risk Management and Resilient Road Asset Management in Nepal. From June 2018 to September 2019, ICEM supported the Government of Nepal through a multi-hazard risk assessment of over 700 km of national roads, and the subsequent development and prioritization of risk mitigation measures to ensure the resilience of these road corridors now and into the future.

Multi-hazard risk assessment and road network criticality assessment

For eight road corridors located mainly in the western region of Nepal, ICEM demonstrated an innovative multi-hazard risk assessment methodology, composed of four risk indices and combining a set of risk parameters such as rainfall, climate change, geology, seismic intensity, slope, drainage and historical landslide events, among others. These four risk indices were consolidated into one “multi-hazard” risk index and formed the basis for assembling a road risk profile per road corridor.

Risk indices developed as part of the multi-hazard risk assessment

Data for each of the parameters were analyzed using GIS and integrating satellite imagery, hydrological and hydraulic modelling results, and expert verification. The data was processed and categorized into five levels of risk ranging from very low to very high risk. For each of the parameters, risk scores were assigned at 1km intervals along all eight target roads, weighted and combined to develop the final risk index […]