Physical Environment
The river is unique among New Zealand rivers, starting on the east side of the main dividing range and having its outflow to the west. The explanation for this is the uplift of the central ranges. The ranges moved upwards at the same time as the gorge was eroded by the river, instead of the more usual erosion of an already existing range. This suggests that the river is an old one, as it must have existed before the Ruahine and Tararua Ranges.
Major tributaries of the river include the Makakahi, Mangahao, Pohangina and Oroua Rivers. The Manawatu's total length is 180 km, making it only the 12th-longest in the country, but at 102 m³/s it is one of the country's greatest rivers in terms of flow, and second only to the Waikato River among North Island rivers.
The Manawatu River flooded in February 2004, displacing over 2000 people (primarily from Marton and Feilding) and damaging over 1000 Manawatu farms. The cost of the flood in terms of insurance payouts was NZ$122 million. Further damage was prevented by the opening of the Moutoa floodgates, which intercept the river between Foxton and Shannon.
Read more about this topic: Manawatu River
Famous quotes containing the words physical environment, physical and/or environment:
“The vast material displacements the machine has made in our physical environment are perhaps in the long run less important than its spiritual contributions to our culture.”
—Lewis Mumford (18951990)
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“We learn through experience and experiencing, and no one teaches anyone anything. This is as true for the infant moving from kicking to crawling to walking as it is for the scientist with his equations. If the environment permits it, anyone can learn whatever he chooses to learn; and if the individual permits it, the environment will teach him everything it has to teach.”
—Viola Spolin (b. 1911)