The shock meeting of two streams

We may know the Waikawa River from what we see of it at the footbridge, but around 6 Km upstream our Waikawa River is formed from two other streams: the Waikawa and the Manakau. The two streams converge about 100 metres west of Whakahoro Road. That’s the shingle road with all the letterboxes that runs north, opposite 363 Waikawa Beach Road.

Map showing that Waikawa and Manakau Streams join just west of Whakahoro Road.
North at the top. The Waikawa Stream (north) and Manakau Stream (south) join just west of Whakahoro Road which runs off Waikawa Beach Road, the orange line across the bottom of the map.

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What do sand dunes do?

Rob Cross is biodiversity manager at Kāpiti Coast District Council. In the 10 minute video below he talks about the natural highlights of Kāpiti’s sand dunes, reminding us what an important job they do creating homes for plants and wildlife and helping protect our coastline. We could reasonably expect our dunes at Waikawa Beach to be the same.

Source: Walks with Rob – Kāpiti Coast sand dunes – YouTube.

Also check out the Kāpiti Caring for Sand Dunes brochure (465KB PDF).

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Tonkin and Taylor River Mouth Report — update

Late last year Tonkin and Taylor came to Waikawa Beach to look at our river mouth and nearby coast. See Coastal study planned for late 2018. The other day we received an update on that report. It seems their findings should be available in the next few weeks:

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Our disappearing wetlands

We have quite a few wet areas around Waikawa Beach, with the notorious flood-prone paddocks along Waikawa Beach Road, the two lakes at the end of Strathnaver Drive, and others. Other notable nearby areas are the spontaneous lake on Strathnaver Drive, the lake on the property at the south end of Reay Mackay Grove, and lakes Huritini and Waiorongomai, along with the many streams through our rural properties.

Wetlands act as purifiers for polluted water, absorb carbon from the atmosphere, and provide a home to threatened birds. They also support frogs and insects, and of course, replenish our aquifer.

Many locals cherish our abundant birdlife, with black swans, ducks, Canada geese, Royal Spoonbills, pied stilts, oystercatchers, white-faced herons, shags, pukeko and many others.

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Coastal erosion in Golden Bay

The coastal erosion in Golden Bay is causing concern:

Plans for a seawall up to 350 metres long in western Golden Bay are back on the table.

Property owners in Pakawau, north of Collingwood and on the inside of Farewell Spit, want the wall to protect their homes and land from rapidly increasing coastal erosion.…

Engineering firm OCEL Consultants NZ … said in a report that erosion was expected to accelerate due to sea level rise guidelines proposed by the Ministry for the Environment coupled with suggested increases in the frequency and severity of storms. …

a subdivision created there in 1959 had about 30 metres of sand dunes on the seaward side of the houses. …

“It’s gone from 20 to 30 metres of dunes – to now being within two metres of some of the sections.”…

The proposed wall would be a continuation of an existing wall at the Pakawau camping ground. It was estimated to cost up to $400,000 to build …

Source: Plans for Golden Bay seawall back on the table.

It’s worth reading the rest of the article too. There are quite a few similarities to the situation at Waikawa Beach.