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The Census 2011: Mapping operation is now in progress

 

 

 

Gampaha District

 

Housing and Non Housing Building Units Damaged by the Tsunami 2004

Gampaha District 

This report consists of 2 parts. Part 1 represents the housing characteristics of the damaged housing units and characteristics about the people who lived in those damaged housing units at the time of the Tsunami Census. Housing section covers height of the submerged sea water, condition of the toilet, availability of drinking water, material used for construction, number of rooms, floor area, ownership of the land, monthly income of the housing unit, economic activities existed within the unit and the loss incurred. In addition, demographic characteristics such as age, sex, education, injuries and deaths of the people who lived in the damaged housing units are also covered in this section. Part 2 presents the characteristics of non-housing units such as ownership, type of activity, number of employees and loss incurred. Following Table 1.1 show the total number of building units      (housing and non-housing) damaged due to Tsunami in Gampaha district of the Western province.     

Table 1.1:

Number of Damaged Housing and Non Housing Building Units Due to Tsunami 2004: Gampaha District

 

Part 1

Characteristics of Housing Units and Persons Living in the Damaged Housing Units

Gampaha District

 

  •     Total number of Divisional Secretary Divisions (DSD) in Gampaha District is 13.

  •     Out of this, two Divisional Secretary Divisions were affected by the Tsunami 2004.

  •     Affected Divisional Secretary Divisions are Negombo and Wattala. 

  •     The total number of Grama Niladhari Divisions (GND) in Gampaha District is 1177.

  •     Out of this, 13 (nearly 1%) GND were affected by the Tsunami 2004.

GND is the smallest administrative unit in Sri Lanka.  In order to conduct Censuses these GN divisions were sub divided into 2 or 3 Census Blocks (CB). In the Tsunami Census, affected CB was identified, if at least one damaged building unit was found in a CB.  Listing forms which contained all the housing and non-housing units in those CBs, were updated after Tsunami to identify the number of building units which were completely damaged, partially damaged (unusable) and partially damaged (usable). Following table 1.2 show the percentage of housing units surveyed and listed which were identified as damaged units in the affected DS divisions of Gampaha district. It should be mentioned that the number of housing units was slightly less than the number that was listed in the Tsunami Census. To avoid complexities when analyzing data, the total number of housing units were obtained from those listed whereas percentages were computed using the surveyed number of housing units in this report wherever applicable.

Table 1.2:

Percentage distribution of housing units surveyed and total housing units listed by type of damage in affected DS divisions : Gampaha District 

 

Distribution of damaged housing units by distance to the sea 

  •  Tables from 1.3 to 1.7 show the distribution of damaged housing units in the affected DS and GN divisions by type of     damage and distance from unit to the sea.
  •  In order to mark boundary line of 100m (which is called buffer zone) from the housing unit to the sea, staff of the  Department   of Census and Statistics jointly worked with the staff of the Survey Department.

    

Table 1.3: Distribution of damaged housing units in the affected DS divisions by type of damage and distance to the sea  : Gampaha District
Table 1.4: Distribution of damaged housing units in the affected GN divisions by type of  damage and distance to the sea : Negombo DS Division of Gampaha District 
Table 1.5: Distribution of damaged housing units in the affected GN divisions by type of damage and distance to the sea  : Wattala DS Division of Gampaha District

Height of the Submerged Sea Water

As a result of the Tsunami, most of the housing units which were located along the coastal belt were submerged by the sea water. This section covers the highest height of the submerged sea water into the damaged housing units which were located in the affected DS divisions of Gampaha district. Tables 2.1a, 2.1b and 2.1c present the height of the submerged sea water for completely damaged, unusable partially damaged and usable partially damaged housing units in Gampaha district respectively. 

Table 2.1a:

Percentage distribution of completely damaged housing units in affected  DS divisions* by highest height submerged by sea water: Gampaha District  

Table 2.1b: Percentage distribution of partially damaged housing units (unusable) in  affected DS divisions* by highest height submerged by sea water : Gampaha District
Table 2.1c:

Percentage distribution of partially damaged housing units  (usable) in affected DS divisions* by highest height submerged by sea water : Gampaha District

Condition of Toilet Facilities 

This section covers the condition of toilet facilities of the damaged housing units in the affected DS divisions of Gampaha district. Tables 2.2a, 2.2b and 2.2c present whether the toilet facilities were destroyed or not by affected DS divisions for completely damaged, unusable partially damaged and usable partially damaged housing units respectively.

Table 2.2a:

Percentage distribution of completely damaged housing units in affected  DS divisions* by condition of the toilet facilities: Gampaha District  

Table 2.2b: Percentage distribution of partially damaged housing units (unusable) in  affected DS divisions* by condition of the toilet facilities : Gampaha District
Table 2.2c:

Percentage distribution of partially damaged housing units  (usable) in affected DS divisions* by condition of the  toilet facilities : Gampaha District

Availability of Drinking Water Facilities

This section covers the availability of drinking water facilities of the damaged housing units in the affected DS divisions of Gampaha district. Tables 2.3a, 2.3b and 2.3c present whether the drinking water facilities are available or not by affected DS divisions for completely damaged, unusable partially damaged and usable partially damaged housing units respectively.     

Table 2.3a:

Percentage distribution of completely damaged housing units in  affected DS divisions* by availability of drinking water facilities  after Tsunami: Gampaha District

Table 2.3b:

Percentage distribution of partially damaged housing units (unusable) in affected DS divisions* by availability of drinking water facilities  after Tsunami : Gampaha District

Table 2.3c:

Percentage distribution of partially damaged housing units (usable)  in affected DS divisions* by availability of drinking water facilities after Tsunami :  Gampaha District

Reasons for Not Having Drinking Water Facilities

This section covers the main reason for not having drinking water for the damaged housing units in the affected DS divisions of Gampaha district.  Tables 2.4a, 2.4b and 2.4c present the percentage distribution the housing units by reason for not having drinking water facilities at the time of the Tsunami Census by affected DS divisions for completely damaged, unusable partially damaged and usable partially damaged housing units respectively.     

Table 2.4a: Percentage distribution of completely damaged housing units  which did  not have drinking water facilities after Tsunami by reason for not having water by  affected DS divisions* of : Gampaha District
Table 2.4b:

Percentage distribution of partially damaged housing units  (unusable), which did not have drinking water facilities after Tsunami by reason for not  having water by affected DS divisions* of  : Gampaha District

Table 2.4c:

Percentage distribution of partially damaged housing units (usable), which did not have drinking water facilities after Tsunami by reason for not having water by affected DS divisions* of  : Gampaha District

Material Used for Construction

This section covers the material used for construction of the damaged housing units in the affected DS divisions of Gampaha district. Table 2.5 presents materials used for roof, walls and floor for all types of damaged housing units in the Gampaha district. Materials used for the construction of housing unit was considered permanent, if the roof, the walls and the floor were constructed using permanent material. Roof is considered permanent, if constructed using tiles / asbestos etc. Roof is considered temporary, if constructed using cadjan /tin sheets etc. Walls are considered permanent, if constructed using bricks /cement blocks etc. Walls are considered temporary, if constructed using mud, wood / tin sheets etc. If any combination of materials other than ‘Permanent’ is considered as 'Temporary' in these tables.     

Table 2.5: Percentage distribution of damaged** housing units in affected DS divisions* by material used for construction: Gampaha District

Number of Rooms and the Floor Area of the Damaged Housing Units

This section covers the number of rooms and floor area of the damaged housing units in the affected DS divisions of Gampaha district. Tables 2.6 and 2.7 present the percentage of damaged housing units by number of rooms and the floor area of the all types of damaged housing units in affected DS divisions respectively.       

Table 2.6: Percentage distribution of the damaged** housing units in the affected DS divisions*  by number of rooms in the unit:  Gampaha District
Table 2.7: Percentage distribution of the damaged** housing units in the affected DS divisions* By floor area of the housing unit:  Gampaha District

Ownership of the Land

This section presents information about the ownership of the land where the damaged housing units were located in the affected DS divisions of Gampaha district.

Table 2.8: Percentage distribution of the damaged** housing units in the affected DS divisions* by ownership of the land  : Gampaha District

Monthly Income of the Housing Units

This section covers the monthly income of damaged housing units in the affected DS divisions of Gampaha district.  This includes the total income of all income earners of the housing unit from all sources, before the Tsunami. Tables 2.9a, 2.9b and 2.9c present the monthly income of the damaged housing units in the affected DS divisions for completely damaged, unusable partially damaged and usable partially damaged housing units respectively.  

Table 2.9a:

Percentage distribution of completely damaged housing units in affected DS   divisions* by reported monthly income of the housing unit : Gampaha District

Table 2.9b:

Percentage distribution of partially damaged housing units (unusable) in  affected DS divisions* by reported monthly income of the housing unit : Gampaha District

Table 2.9c:

Percentage distribution of partially damaged housing units (usable) in affected DS divisions* by reported monthly income of the housing unit : Gampaha District

 

Economic Activities Operated Within the Housing Unit

This section covers the information about functionality of economic activities which operated an economic activity within damaged housing units, value of loss incurred to those activities and number of workers engaged in those activities in the affected DS divisions of Gampaha district.  Tables 3.1, 3.2 and 3.3 present this information respectively.          

Table 3.1: Percentage distribution of the damaged** housing units in affected DS divisions* which  operated an economic activity within the unit according to the functionality of the activity : Gampaha District 
Table 3.2: Percentage distribution of value of the loss incurred to economic activity which  had an economic activity within the damaged** housing units in affected DS divisions* : Gampaha District
Table 3.3:

Percentage distribution of number of employees worked in the damaged**housing units of affected DS divisions* where an economic activity  operated within the housing unit : Gampaha District

Demographic Characteristics of the People Living in the Damaged Housing Units

This section covers the demographic characteristics of members who are living in the damaged housing units in the affected DS divisions of Gampaha district.  A person was considered as a member of the housing unit if he/she was a usual resident of the housing unit when the Tsunami disaster occurred. They may be presently living in the housing unit or elsewhere such as a welfare center or a friend’s / relative’s house. Table 4.1 presents all the persons living in the damaged housing units in the affected DS divisions by sex. Children living in the damaged housing units who were below 5 years and below 10 years by sex are shown in tables 4.2 and 4.3 respectively.  Age distribution of the people living in the affected housing units by sex is given in table 4.4 while women in the reproductive age group is shown in the table 4.5. Table 4.6 presents the economic activity of the people who were engaged in before the Tsunami and ability to continue the same at the time of the Tsunami Census. Table 4.7 presents the distribution of children below 18 years of age at the time of the Tsunami Census by whether their parents are alive or not.        

Table 4.1:

Percentage distribution of all persons who are living in the damaged** housing units in affected DS divisions* by sex  :Gampaha District

Table 4.2:

 Percentage distribution of children under 5 years of age who  are living in the damaged** housing units in affected DS divisions* by sex : Gampaha District  

Table 4.3:

Percentage distribution of children under 10 years of age who  are living in the damaged** housing units in affected DS  divisions* by sex : Gampaha District 

Table 4.4:

Percentage distribution of the people who are living in the damaged** housing units in affected DS divisions* by age and sex : Gampaha District

Table 4.5:

Distribution of employed persons in the damaged** housing units of the   affected DS divisions* by the economic activity and ability to continue the same at the time of the Tsunami Census.  : Gampaha District

Table 4.6:

Distribution of employed persons in the damaged** housing units of the affected DS divisions* by the economic activity and ability to continue the same at the time of the Tsunami Census. : Gampaha District

Children Living With / Without Parents

This section covers the information of children below 19 years of age whose parents are alive or not. Some children are fortunate to live with   their parents while some children have lost one or both parents. It should be important to mention here that those parents who have died, may have died due to any other reasons other than Tsunami.  

Table 4.7:

Distribution of children (below 19 years of age) living in the damaged** housing units in affected DS divisions* whose parents are alive or not by age group: Gampaha District

Whether Engaged in Education  Before and After Tsunami

This section inquires whether there was any disruption of education of the people due to Tsunami who were in the age group between 3 to 34 years and living in the damaged housing units of affected DS divisions. Since the event occurred at the end of the school year for 2004, there may be some new children who have just enrolled in the year 2005, during the period of Tsunami Census. Table 5.1 presents this information.  

Table 5.1:

Engagement in educational activities of the persons (3-34 years) who are living in the damaged** housing units of affected DS divisions* before Tsunami and whether they are continuing educational activities after Tsunami  : Gampaha District

People Injured Due to Tsunami

If a person was disabled or injured or had a sickness due to Tsunami, information on such persons were collected at this census. This section covers the information about those injured people who are living in the damaged housing units in the affected DS divisions of Gampaha district. The information on main injury occurred was collected if there were more than one type of injury. Table 6.1 show the percentage distribution of injured people by age and sex while the table 6.2 presents the distribution of injured people by type of injury and sex

Table 6.1:

Percentage distribution of persons injured due to Tsunami who are living in the damaged** housing units in affected DS divisions* by age and sex : Gampaha District

Table 6.2:

Percentage distribution of persons injured due to Tsunami who are living in the damaged** housing units in affected DS divisions* by type of injury and sex : Gampaha District

 

People Dead / Disappeared of Damaged Housing Units

This section covers the number of people dead/disappeared who were living in the damaged housing units. There could be certain amount of under-reporting errors when collecting these information if there were no reliable respondents in those damaged housing units.  

  •    There were only two persons reported to be dead due to Tsunami in Gampaha District.

  •    One was a disabled male over 30 years of age engaged in fishing (for sale). The other one was a girl in 5-9 age group.

Part 2

Characteristics of building units other than housing units (non-housing units)

Gampaha District

This section covers the information about damages occurred to non-housing building units in the affected DS divisions of Gampaha district. There are 9 tables from 8.1 to 8.9 to show the percentage distribution for type of damage, distance from the sea to the building, type of unit, economic activity carried out prior to Tsunami, number of employees, material used for construction, floor area, ownership and estimated total loss by DS level in this section.  

Table 8.1:

Percentage distribution of buildings other than housing units damaged** in  affected DS divisions*by  type of damage: Gampaha District

Table 8.2:

Percentage  distribution of buildings other than housing units damaged** in affected DS divisions*by distance from the sea to the building units: Gampaha District

Table 8.3:

Percentage distribution of  buildings  other  than  housing  units damaged** in  affected DS  divisions* by type of the unit : Gampaha District

Table 8.4: Percentage distribution of buildings other than housing units damaged** in affected DS divisions*by Economic activity carried   out prior to Tsunami :Gampaha  District     
Table 8.5: Percentage distribution of buildings other than housing units damaged** in affected DS divisions * by number of employees :Gampaha District
Table 8.6:

Percentage distribution of buildings other than housing units  damaged** in  affected DS divisions * by material used for construction of the building unit :Gampaha District

Table 8.7:

Percentage distribution of buildings other than housing units damaged** in  affected DS divisions * by total floor area of the unit : Gampaha District.

Table 8.8: Percentage distribution of buildings other than housing units damaged** in affected  DS divisions * by Ownership of the land:  Gampaha District
Table 8.9:

Percentage distribution of buildings other than housing units damaged** in affected DS divisions * by estimated value of the damage: Gampaha District

Department of Census and Statistics

P O Box 563, Colombo, Sri Lanka - Telephone: +94 112675297, Fax: 2697594 - Email:information@statistics.gov.lk