Attanagalu Oya

Attanagalu Oya
Attanagalu Oya, near Dandugama
Native name අත්තනගලු ඹය
Country Sri Lanka
Physical characteristics
Main source Kegalle District
Galapitamada
River mouth Negombo Lagoon
Dandugama
07°10′N 79°53′E / 7.167°N 79.883°E / 7.167; 79.883Coordinates: 07°10′N 79°53′E / 7.167°N 79.883°E / 7.167; 79.883
Length 76 km (47 mi)
Discharge
  • Minimum rate:
    20 m3/s (710 cu ft/s)
  • Maximum rate:
    225 m3/s (7,900 cu ft/s)
Basin features
Basin size 727 km2 (281 sq mi)

Attanagalu Oya (Sinhalese: අත්තනගලු ඹය) is a river in Gampaha District, Sri Lanka.[1][2]

The length of the river is approximately 76 km, with a drainage basin of 727 km2[1][3][4] It drains into the Negombo Lagoon as Dandugam Oya.[5][6] The river is often a cause of floods to low-lying areas in theGampaha district.

Tributaries

  • Basnagoda Oya
  • Waharaka Oya
  • Alagama Oya
  • Oruwal Oya
  • Diyaeli Oya
  • Kimbulapitiya Oya/ Duhagala Ela
  • Mapalan Oya [5][4]

References

  1. 1 2 Pathirana, C. D. K.; Bandara, N. J. G. J.; Jayaweera, C. D. (2012-12-20). "Investigation of the pollution extent of Attanagalu Oya". Proceedings of International Forestry and Environment Symposium. 17 (0). doi:10.31357/fesympo.v17i0.1054. ISSN 2235-9427.
  2. ↑ "preliminary_study_on_pethia_reval_meegaskumbura_Pethiyagoda_2008_and_other_related_ichthyofauna_of_Attanagalu_oya_river_basin_Sri_Lanka" (PDF).
  3. ↑ "International Forestry and Environment Symposium".
  4. 1 2 Wijesekera, Sohan; Perera, L (2016-05-02). "Key Issues of Data and Data Checking for Hydrological Analyses - Case Study of Rainfall Data in the Attanagalu Oya Basin of Sri Lanka". Engineer: Journal of the Institution of Engineers, Sri Lanka. 45: 1. doi:10.4038/engineer.v45i2.6936.
  5. 1 2 "Preliminary Groundwater Assessment and Water Quality Study in the Shallow Aquifer System in the Attanagalu Oya Basin" (PDF).
  6. ↑ "Template for Submission of Scientific Information to Describe Areas Meeting Scientific Criteria for Ecologically or Biologically Significant Marine Areas" (PDF).
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