HAZARD ASSESSMENT TO TIDAL FLOOD INUNDATION (Case Study: Tegal Municipality)

Abstract

Tegal Municipality is one of coastal cities suffering from tidal flood inundation. This paper
aims to assess current and future hazards to understand the extent of the inundation. Field
observation, questionnaires, in-depth interviews, as well as secondary data collection have
been great tools in achieving the research objectives. It is found that households in research
location are dominated by low hazard indexes. The results are influenced both by current
autonomous and planned adaptation strategies conducted by affected households and
governments. It is also found that due to its relatively low-lying area, Muarareja is the first
village affected by inundation depth increase. A 10 cm inundation depth scenario results in
the inundation of more than 85% of Muarareja’s total area. Meanwhile in Tegalsari,
Mintaragen, and Panggung, a 10 cm inundation depth scenario results in inundation of less
than 21% of total areas.