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Home , Balangoda, Bolgoda Lake, Dalugama, Godagama, Hokandara, Kohuwala

Kirimetiagara Gonahena East Naranwala Pinnameda 80,000 85,000 90,000 95,000 100,000 105,000 110,000 115,000 120,000 20 20 80 120 20 20 ,000 5 20 Matagoda Pinnagoda 40 20 Maranwala 200 Dalupitiya 200,000 Mabole 20 Gonahena East 20 Puwakwetiya 20 40 60 20 Ederamulla Gonahena West Thimbirigasyaya

20 Ahugamana 60 Hendala 20 Ihala Biyanwila Udupila Alwis Town Pahala Biyanwila Akurumulla Palliyawatta Hunupitiya North Padiliyatuduwa Migahawatta Delgoda 40 Old Cannal 20 40 Demalagama Hamilton Cannal 40 20 60 Helummahara 10 40 20 20 Kammalawatta Alubowila 40 Hekitta Warahantuduwa Mawaramandiya 40 Makola North 20 Lansiyawatta Avariyawatta Hunupitiya South 60 Madurawa E E E 20 Golummahara E 20 Iriyawetiya E 40 E 20 Daranagama 40 Pannawala E 20 80 60 20 20 E Warakanatta Makola South 20 20 20 Pelahela

Thelangapatha Dippitigoda 40 Kanduboda E Dalugamgoda 40 Parangoda 20 20 Siyambalape

20 E Wanawasala Yatihena 20 40 Pamunuwila Dekatana West

Sapugaskanda 20 E 20 Narampola

Himbutuwegoda 20 E Thoranahandiya 20 20 Moragala

E BIYAGAMA Nungamugoda Galedanda Heiyantuduwa 40 Badahelawatta E 20 20 20 20 Wedamulla 20 Peliyagodawatta E Ganegoda Galborella 60 20

E 40

40 Walgama 20 Kalukondayawa E Gonawala 20 Kottunna E 20 20 E Pilapitiya Kelaniya 20 E 20 20 E 20 E 20

,000 E E 40 Kelani Ganga E 20

195 Diyakawita 195,000

20 E 20 20 20 E Mabima 20 Sinharamuula Talwatta 40 E 60 20 Petiyagoda Pattiwila 40 Ganewatta E E E 40 E 20 Waragoda E 20 20 E E E E 20 20 20 Dompe Pahala E 20 E E 20 20 Pahuru Oya Orugodawatta E E E E 20 Kotuwila E E Yaburaliya E E Meetotamulla E Kittapahuwa Mulleriyawa North E

Kelanimulla 20 E 40 20 Wenawatta Mahabuthgama E Biyagama E E E 20 Bollegala 20 E 20 20 E E 20 20 E Waturapata E Malwana E E E 20 Kohilawatta Dompe

Hatigalla E E E E E Ihala Boomiriya Brandiyawatta E E 20

20 E E 20 20 E E E E E 20 E 20 Kuda Buthgamuwa E E Petah Belagama Ambatale E 20 E 20 Wellampitiya E 20 E 20 Megoda Kimbulwila Wewa

Fort E 20 20 20 Pahala Mapitigama Plcep Kaduwela 20 20 20 Mulleriyawa 20 20 E KOLONNAWA 20 20 Himbutana 20 Weliwita 20 20 Atgalgoda 20 20 20 E Angoda 20 Pahala Bomiriya 20 Kolonnawa Ela 20 20 20 Gotatuwa 20 20 Kolonnawa E

20 Hewagama 20 Udumulla

Kompannaweediya Salamulla 20

20 40 E E E Heen Ela E Himbutana 20 20 20 E 20 Udampitigama 20 Yakbedda 20 20 40 E 60 20 Kotalawala 20 20 E 20 20 E Kalapaluwawa Maha Ela 20 E Madinnagoda Aggona 40 20 Talahena 20 20 E Town Hall 60 E Cotta Road 20 80 40 20 20 20 Ranala E 20 40 E 20 20 Pallewella Oya 20 20 20 Walpola 20 80 20 120 Ambulagama Cinnamon Garden 20 60 ,000 20

190 Koratota Nawagamuwa 190,000 East 20 Malambe 60 North 20 40 80

20 20 Henpita Koswatta Talangama North 20 40 40 20 20 80 40 40

20 20

KADUWELA 20 20 20 20 40 20 60

Ethul Kotte 80 40 20 120 "" 20 20

Battaramulla South 20 20 20 Akurugoda 20 Jalatara 20 Arangala Oruwala Diyawanna Oya Pelawatta 20 Timbirigasyaya Pita Kotte Dedigamuwa

20 Talangama Wewa Atygala 20 20 20 20 Talangama South INDIAN OCEAN Hawlock Town Kiralupona Cannal 20 Pagoda Walpita 20 20 20 20 20 Jayawadanagama 40 Mullegama 20 20 20 20 Mirihana Lenagala Batawala Madiwela 40 North 20 Jubilee Post 20 Pore 20 20 20

40 20 20 Talawatugoda Wellawatta Nugegoda 40

20 Edirigoda Hokandara South 20 20 40 Cannal 20 20 Morahena 40 20 40 20

Aturugiriya 40 Habarakada 20 20 Talapathpitiya 20 20 20 Balapokuna 20 40 20

20 20 Kalalgoda Walgama 20 40 20 20 40 40 40 ,000

185 Udahamulla Panagoda 185,000 Panagoda East 20 North 20 40 Panagoda West

40 20 20 20 Navinna 20 Polwatta Pepiliyana Gangodawila South 40 20 North Beddegedaramulla 20 Pamunuwa

Divulpitiya 40 60 Dehiwala 40 20 Karagampitiya 40

60

Wattegedara Depanama 40 Maharagama Kottawa South 20 Pallidora Bellatara 20 Moraketiya Malapalla Nikape 40 Rattanapitiya Godagama Gehenuwala

40 Egodawatta Boralesgamu Wewa Homagama Kavdana 20 Homagama South Migoda Kottawa Pannipitiya North 40 20 20 Godigamuwa Ovitigama Erawwela East 40

20 Watarappala Mawathgama 20

Boralesgamuwa South 20 20 20 DEHIWELA Attidiya Homagama South 40 Neelammahara Niyandagala

40 Galkissa

Erewwela West Waras Ganga Niwanthidiya Katuwawala HOMAGAMA 40 Pelanwatta Mabulgoda 20 40 Siddamulla 40 Magammana Uduwana Werahera Kaliyammahara 40 20

40 Borupana Kandawala 20 Pitipana South

,000 Dulanmahara

180 Paligedara Brahmanagama 180,000

15

Bokundara Gorapitiya Sangarama 20

Mattegoda Watta Tumbowila Jaligoda 40 Mattegoda 20 20

Makuluduwa 20 40 40 Mampe North 40 Nampamunuwa Horagala

40

40 20 20 Diyagama

20 E

Kaldemulla E Telawala E

Mampe South Kirigam Pamunuwa E 20 20

20 40 E 20

20 Wewala E 40

Piliyandala Kudamaduwa 40 Angulana E

Kiriwattuduwa KESDEWA Mawittara E 20

Siyambalagoda

E 40

Honnantara E

20 E

Miriswatta E 20 E

20 Suwarapola 20 40

Laksapatiya Kesbewa Wewa E 40 20

Kuduwamulla Kolamunna 20 Kiriwattuduwa 20 20 20 E

Rawatawatta Kesbewa E

Angulana Lake 40 Horathuduwa Rilawala E

E Talagala North Molpe 20 E Hedigama 20 20 Kondurawa Kimbul Kotuwe Ela 20 20 20 E 20 40 40 Lunawa Polgasowita Kahatuduwa 20 Moratuwa 20

Willorawatta 40

20 E 40 20 20 E Deitara 60 40 Berawawala Wetara 20 20 Batakettara 40

20 Moratumulla Halpita E

Indibedda 20 Idama Bolgoda Lake E

20 20 20 E 80 Undurugoda Nivungama Olaboduwa 40

20 Makandana 20 Palannoruwa 20 20 E Talagala South E E 80 E Madapatha E 40 E Moranda 20 40 Venivelkola 60 20 Dampe 20 E 20 175,000 175,000 mN E 80,000 mE 85,000 90,000 95,000 100,000 105,000 110,000 115,000 120,000

LEGEND Scale 1 : 50,000 FLOOD HAZARD MAP - SHEET 66 MAP BASE Main Road Historical Site 20 10 0 20 40 60 80 100 ATTANAGALU OYA & BASIN Topographical features shown in the map are those appearing in the Survey Department base map at 1:100,000. Inundation Minor Road areas are prepared by the Hydrological Division of Irrigation Department based on the field surveys. Railway Station MAP INFORMATION Other Roads Kilometre µ EEE Province Boundary METHOD OF PREPARATION LIMITATIONS Railway Origin of the grid system is 200,000 metres South and 200,000 metres West of Pidurutalagala. EEEE Flood Hazard Map depicts the areas that are vulnerable to be inundated by floods in the Attanagalu Oya & Kelani River Basin. As stated under the Methods of Preparation, this map was prepared using the areas actually inundated by floods that had LOCATION District Boundary happened. Floods vary greatly in magnitude. Floods of greater magnitude than those surveyed for preparing this map always Bridge / River / Stream / Canal Areas of hazard were determined based on the areas that were actually inundated by past floods. Inundated areas were D.S.Div. Boundary surveyed in the field by the officers of Hydrology Division of Irrigation Department. Areas inundated were determined by several remain a possibility. Such floods of greater magnitude may cause inundations that may exceed the extents shown in this map. Flood Hazard Map Therefore the inundation areas shown in this map shall not be considered as the only areas subject to flood hazard. Village Name methods: Looking for tell-tale marks left behind after flooding, interviews with the residents of the area and collection of records Tank/ Lagoon Published by maintained by local officers were the main methods used. 61 In addition, this map does not indicate the probability of inundation. It includes both the areas with high probability of inundation 59 NAGODA D.S.Div. Name Global Positioning System (GPS) Monitors were used in the survey to find the coordinates of the points on the boundary of and the areas with low probability of inundation within the boundary indicated. Temple Irrigation Department, 60 inundated areas. Surveyed points were plotted on topographical maps published by the Survey Department to trace the 10 Bathymetrical Contour / Value with the assistance from Other parameters associated with flooding, such as the depth of inundation, the duration of submergence or the velocities of Kovil inundation boundaries. This plotting was carried out as far as possible in the field to verify the accuracy. Plotting was carried out flood flows are not indicated in this map. These parameters have a bearing on the severity of flooding. Index Contour Disaster Management Centre using 1: 10,000 scale maps where coverage is available: Otherwise 1: 50,000 scale maps were used. æ Church Marks left by inundation may be erased with time. Memories of people also become hazy after a time. Therefore a degree of NUWARA By plotting the boundaries of inundation for as many past floods as possible, the envelope of the boundaries of inundated areas ELIYA 20 uncertainty is unavoidable in the survey of inundation area of a past flood, unless carried out within a reasonably short time of 66 Intermediate Contour/ Value was found. Final map was prepared by transferring the prepared envelope to the 1:100,000 maps published by the Survey COLOMBO 67 Mosque May 2012 the event. Irrigation Department would be grateful if any inadvertent mistakes in the map are pointed out. 68 Department. ^ Police Station Supplimentery Contour DISCLAIMER PURPOSE OF THIS MAP School Flood Inundation Area The Irrigation Department or the Hydrology Division, the Disaster Management Centre and the United Nations Development This flood hazard map is intended for use as a guide in national or strategic level planning and for public information only. It G Hospital Programme shall not be liable under any circumstances for any direct, indirect, special, incidental or consequential damages WESTERN should not be used for local level planning as the resolution is too low. This map and the information presented therein, is not a PROVINCE 74 75 with respect to any claim by any user or any third party on any account of or arising from the use of this map. legal document and should not be used for any regulatory purpose. 73 PROVINCE OF SABARAGAMUWA Cartographical Enhancement by The Survey Department of Sri Lanka