Anahulu River

The Anahulu River (also called Anahulu Stream) is the longest watercourse on the island of O'ahu in the U.S. state of Hawai'i. It is 7.1 miles (11.4 km) long.[1]

Description

It is formed on the western side of the northern Koolau Range approximately 7 miles (11 km) northeast of Wahiawā by the confluence of Kawainui and Kawai'iki streams, both perennial. It flows west-northwest descending through Kawailoa Gulch, then empties into the eastern end of Waialua Bay at Hale'iwa. It encompasses a watershed of approximately 16 square miles (41 km2) and a 100-year peak discharge of 16,200 ft3/s (459 m³/s).

Archaeological evidence indicates that the valley of the river near its mouth was the site of ancient Hawaiian villages. The river valley was abandoned but was later repopulated in the early 19th century, partly as the result of a policy by King Kamehameha I to grow food to support his military expeditions. The policy included the development of irrigated terraces. In 1832 U.S. Protestant missionaries John Emerson and his wife Ursula Sophia circumnavigated Oʻahu and put in at the mouth of the river, located at 21°35′40″N 158°6′15″W / 21.59444°N 158.10417°W / 21.59444; -158.10417Coordinates: 21°35′40″N 158°6′15″W / 21.59444°N 158.10417°W / 21.59444; -158.10417. At the village of Hale'iwa (from hale (home) of the iwa (frigate bird)), they were welcomed by Chief Laʻanui and established the Liliuokalani Church in the village.

In the later 19th century the village of Haleʻiwa and the surrounding river valley became a popular summer vacation destination for the Hawaiian monarchs. The first hotel was built along the river by businessman Benjamin Dillingham, who also built Oahu railroad from Honolulu to the north shore in 1898. The railroad and hotel made the river valley a popular vacation spot.

References

  1. ↑ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-04-05 at WebCite, accessed April 28, 2011

External links


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