ACTION PLAN
TOWARD EFFECTIVE

FLOOD HAZARD MAPPINGIN

INDONESIA

ByAgung Djuhartono
D 0607272
December 2, 2006

A. The role of flood hazard maps to mitigate flood damages in Indonesia
1.

The Flood Status
Flood in Indonesia for recent years is frequently happened. The victim andmaterials losses increase in significant number.

Critical River Basin in Indonesia

Critical River Basin in Java Island
The above pictures show the critical river basin where the flood is usually
happened. Flood happen almost in every rainy season in various intensity andfrequency. The increase of population and the changes of land use are thetrigger of catchments area deterioration. This deterioration increases thefrequencies and intensities of flood. The population who stay along the riverand the flood plain increase the number of victim and material losses.

2.

The outline of the present countermeasures for mitigating flood damages
For many years the countermeasure to mitigate flood damages is in structural
aspect such as dam, levee, bottom controller and other construction. But
recently the government is starting to undertake the non structural aspect. The
people should have awareness of the risk and participate to mitigate the flood
damages instead of refrain the deterioration of the catchments area.
For the time being, in such city/river basin are developed the early warning
system. It means to give an alert to the residents in downstream area that there
will be flood in a view hours.

Early Warning System in Ciliwung River Basin
3.

The Usage Of Flood Hazard Map
Flood hazard map will be useful in Indonesia to complete the early warning
system that has been developed. In the area that have not the early warning
system yet FHM will enhance the awareness of the people to the risk they arefacing. FHM will also be the protocol to every agency that has the responsibleof the flood fighting during the flood. The responsible of flood fighting is able
to make better preparation to mitigate the flood damages. They are also able toevacuate the people to the evacuation centre as soon as possible concerning
the number of the victim.

B. The allocation of roles in making flood hazard maps in Indonesia
1.

Responsible organization
In making Flood Hazard Map (FHM) surely will involving many governmentorganization, university, non government organization, community, and others
stake holders to flood fighting. The government should designate certain
organization to hold the responsibility. In Indonesia the organization thatshould designate is the Ministry of Public Works c.q. Directorate General ofWater Resources Development (DGWRD). This choice is based on thatorganization have been developing the early flood warning system (EFWS) in
several river basin. The EFWS use the digital topography map and equippedwith the flood forecasting software there it can be enhanced to anticipatedinundation area map.

2.

Establishment and dissemination of FHM
The municipalities should take the responsibility in making FHM. They holdthe jurisdiction and budget. Furthermore, they have organizations to setting up
and to disseminate the FHM to the citizens.

C. Action Plan

1.

Target Area
Since I work for Ciliwung-Cisadane River Basin Development (CCRBD) mytarget area is Jakarta City where my organization hold the responsibility.

Jakarta is the biggest city and most popoulated in Indonesia. This city has a
big problem with flood disaster. CCRBD has established the early warningsystem for this city but have not covered yet for the entire area.
2.

The necessity to make FHMJakarta is the capitol of Indonesia with around 12 million habitants and billion
dollar investment. From this point of view, FHM establishment for Jakarta is amust. The citizens should know about the flood risk and how to prevent andmake countermeasures to cope with it. The local government of Jakarta andCCBRD have the record of the past flood event. Jakarta aerial topographic
map have been renewed at 2004. This map will be a good start to establish
FHM. Based on that map, CCBRD will be able to do the flood analysis for thearea.

Flood prone area in Jakarta City3.

Action Plan
The action plan to FHM establishment for Jakarta City would not start fromthe years 2007 because the budget has been set up at his years and has greed
by the parliament either national or local budget. So in the years 2007 whatthat could do is disseminate the necessity of FHM establishment and propose
the budget for the years 2008.

NOACTIVITY

123

Disseminate the FHM necessity
Preparing DEMFlood analysis

45

Field survey of Central District
Central District's FHM establishment

67

Field survey of Southern District
Southern District's FHM establishment

89

Field survey of Northern District
Northern District's FHM establishment

1011

Field survey of Eastern District
Eastern District's FHM establishment

1213

Field survey of Western District
Western District's FHM establishment

4.

YEARS
2007 2008

2009

2010

2011

2012

The difficulties
The problem in making FHM is the financial aspect because the local
government is facing many problem to be solved e.g. mass transportation,
housing for the unfortunates people etc. On the other hand the Central
Government has not enough budgets to cover the FHM establishment.
However the FHM establishment for Jakarta city should have been started if
the responsible of Jakarta City or the Indonesian Gov. want to reduce thevictim of flood disaster and number of material and economical losses. The
effort that can do is to convince the Government that FHM is very useful forthem in flood situation, but in normal situation as well. Furthermore theJakarta citizen could have enhanced a self-help and mutual help to cope withflood disaster.

D. My own Flood Hazard Map on Ise CityFor Ise City’s FHM there are several suggestion could be supposed.
1. Need to add the existing map with other map for each wards (if any) orcommunity.
2. If there are not any ward, the local government should divide their city inmany community that has similarity with ward in jurisdiction point ofview.
3. Provide the specific map in larger scale.
4. Simplify the symbol/signage