Istijono , Bambang Istijono and Musri, Ali and Rizaldi, Adek and Umar, Zahrul
(2013)
Disaster Management on Construction of Debris Flow :
Lessons from Batang Kuranji River in West Sumatra, Indonesia.
In: 15 th International Conference on Chalenges in Disaster Mitigation and Management Strategis, 15-17 February 2013, Indian Institute of Technology, Roorkee, India.
Abstract
West Sumatra Province has 4,239,730 hectares area, 87% of the area are mountainous. There are 4 lakes and 606 rivers which flow to their estuaries to the west coast and the east coast of the Sumatra Island. It is located in the tectonic slab between the confluence of two major continental plates, the Eurasian plates and Australian plates, 250 km to the west from the coastline and Great Sumatran fault along Bukit Barisan Mountain range. This province also has four active volcanoes.
Many studies revealed there are 58 rivers; those are very susceptible to debris flow hazards. One of the extraordinary flood had happened in the upstream of Batang Kuranji river.The upstream of the river is in western part of Bukit Barisan. It is a steep river and flows into the west coast of Sumatra (Indian Ocean). In July and September 2012,an extraordinary flood disaster in Kuranji river had destroyed irrigation area around 3,000 hectares and damaged some areas around the river. Moreover, some units settlements and public facilities have damaged by the flood and 4 people died.
Recovery action which included dredging sediment, groundsill and river bank protection is one of the emergency counter measure post disaster of flood. Rehabilitation of public infrastructures i.e. irrigation schemes, bridges has been done to make a sense of security to the community. Management process of debris flow and flood in Batang Kuranji river has been implemented base on the stages of disaster management, i.e. emergency response, recovery (rehabilitation and reconstruction), preparedness and mitigation.
Keywords: debris flow, disaster, recovery
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