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From Wikipedia, the free encyclopedia

Jalaur River
Jalaud River
Jalaur River in San Enrique.jpg
Jalaur River passing through San Enrique, Iloilo, 2019
CountryPhilippines Philippines
RegionWestern Visayas
Physical characteristics
SourceCentral Panay Mountain Range
 • locationMount Baloy Calinog, Iloilo
 • elevation1,958 m (6,424 ft)
MouthGuimaras Strait
 • location
Dumangas, iloilo
 • elevation
0 m (0 ft)
Length141 km (88 mi)
Basin size1,503 km2 (580 sq mi)
 • locationGuimaras Strait
 • average40.29 m3/s (1,423 cu ft/s)
 • minimum30.42 m3/s (1,074 cu ft/s)
 • maximum130.17 m3/s (4,597 cu ft/s)
Basin features
 • left
  • Lamunan River
  • Asisig River
 • right
  • Alawihaw River
  • Ulian River
  • Suage River

Jalaur River,[1] also known as Jalaud River, is the second longest river on Panay island in the Philippines, with a total length of 141 km (88 mi) and the second largest by drainage basin. Only Panay River in Capiz is longer and with a larger river system. Jalaur is the 17th largest river system in the Philippines by drainage basin and has an estimated drainage area of 1,503 square kilometres (580 sq mi). Its source is located on Mount Baloy in the Central Panay Mountain Range, and the river traverses east to southeast before emptying into the Guimaras Strait. It drains the eastern portion of Panay and courses through Passi City and the towns of Leganes, Zarraga, Dumangas, Barotac Nuevo, Pototan, Dingle, San Enrique, Duenas, and Calinog, all in Iloilo province.[2]

The river provides irrigation to farmlands as well as providing a source of potable water.[3]

The river is the site of the Jalaur Mega Dam project begun in 2019.[4]


Jalaur, also known by its variant form Jalaud, seems to be a Hispanicized form of Halawod, the river which serves as the core setting of Hinilawod, an epic poem from Panay.[citation needed]



The river has an annual average discharge of 40.29 cubic metres per second (1,423 cu ft/s).[5]


The lower reached of Jalaur River experiences seasonal flooding. When there is heavy downpour, during the months of June to September, the river overflows and floods the surrounding area. Panay island is also located within the typhoon belt, which experiences several typhoons annually, is also a major factor of flooding of the river.[6]


List of Jalaur River tributaries by length.

  1. Suage River - 64 km (39.7 miles)
  2. Ulian River - 62 km (38 miles)
  3. Lamunan River - 46 km (28.5 miles)
  4. Asisig River - 34 km (21 miles)
  5. Alawihaw River - 32.3 km (20 miles)




Economic Importance

Jalaur River is used in irrigating 15,519 hectares (38,350 acres) in the province of Iloilo through the Jalaur River Irrigation System.[3]

The Metro Iloilo Water District, the potable water provider for Iloilo City, sources some of its water requirement from the river.


  1. ^ "Iloilo - General Features (Water Resources)". Archived from the original on 2008-03-31. Retrieved 2008-09-12.
  2. ^ "Western Visayas Regional Development Plan 2004-2010" (PDF). National Economic Development Authority (NEDA) - Region 6. 2004. p. 13. Retrieved 2008-09-13.[permanent dead link]
  3. ^ a b "Iloilo Province - Water Facilities". Archived from the original on 2008-04-05. Retrieved 2008-09-12.
  4. ^ Sornito, Ime (February 26, 2019). "'A GAME CHANGER': Finally, Jalaur mega dam groundbreaking tomorrow". Panay News. Retrieved 2 January 2021.
  5. ^ "River Discharge Database - Jalaur River". Center For Sustainability & Global Environment, University of Wisconsin. September 3, 2008. Archived from the original on 2010-06-19. Retrieved 2008-09-13.
  6. ^ "Rains leave heavy crop  damage in Capiz, Iloilo". Manila Times. January 14, 2007. Retrieved 2008-09-13.[dead link]

This page was last edited on 2 January 2021, at 14:07
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