It is the longest navigable river in the country being accessible for ships ranging from to tons. However, with the closing of the Kaipara Heads for commercial use the harbour and river are now only used for scenic cruises and recreational boating. This river has its source at the junction of the Wairua and Mangakahia Rivers in the central part of the North Auckland Peninsula. The river is navigable as far as Tangiteroria and with its major tributaries represents a drowned valley.
Its major tributaries from the north are the Kirikopuni, Tangowahine, Awakino, and the Kaihu and, from the south, the Manganui. For some distance from the Kaipara Heads the river is flanked to the east by extensive swamps, many of which are now reclaimed and provide highly productive dairy land. Chief of these is the old Tokatoka Swamp, now the Ruawai Flats. To the west is a series of dunes, both fixed and moving. Among them is a series of lakes and long the shore are drained swamps fringed with mangroves.
At Dargaville, which was named after an early settler, where the river swings west, the country is alternating sandstone and shale of Upper Cretaceous age. The township of Wairoa is on the lower reaches of the river. Discharges from the meat processing plant and municipal sewage treatment enter the river below the township and are subject to consents, with stricter conditions being imposed on the freezing works consent.
The river flats in the lower reaches are used for cropping, horticulture and pasture. There are large populations of both brown and rainbow trout. The Ruakituri River has large trout populations in the middle and upper region, the Hangaroa River has trout in the upper reaches, and the Waiau River has populations of both trout species throughout its length, with high numbers of large sized trout in the remote upper reaches.
Hawke's Bay Regional Council Click for more info. Search all sites near me now. Search your favourite swimming spots. Wairoa River. At times the river can be unsuitable for swimming. Until now. Friends of Te Wairoa Catchment is the coming together of the Wairoa River Steering Group and the Wairoa River Landcare to re-energise the effort to improve the wellbeing of the Wairoa River and its tributaries across the entire Wairoa catchment.
If you would like to support the efforts of this group or become involved with their committee, you can contact them by emailing friends [at] tewairoa [dot] org [dot] nz or you can make a donation to their flagship planting project via the Million Metres campaign. The CCBA passionately supports the restoration of the Wairoa River between Tourist Road and Clevedon-Kawakawa Road as a 'Bridge to Bridge' project, connecting back to the river through public access, recreation and trails and providing an example of river restoration for the wider catchment.
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