River cut Report 08 July 2018

Photos showing the effects of the River Cut breach; an old aerial photo showing a longer rock groyne.

Around 11 am today, low tide after some 55m rain at Waikawa Beach this week, and more in the Tararuas, the river was running fast and strong, but not particularly high.

Fast and strong river flow.
Fast and strong river flow.

Overnight though, the river Cut breached, and the next high tide, around 5 pm, will surely swirl through.

River cut dam breached, from north bank looking south.
River cut dam breached, from north bank looking south.

Note the rock groyne on the left of that picture.

The vehicle entrance is holding, but we’ll see what happens with the high tide and fast flowing river.

We recently scanned in some photos from the archive that are relevant and interesting. There was a river cut on 05 June 1994.

River Cut 05 June 1994.
River Cut 05 June 1994. Note the groyne on the left and dam on the right.

The next photo shows the groyne the day before and has pen marks showing where the Cut was to be made. (I believe.)

04 June 1994.
04 June 1994.

Then we leap forward to 09 July 1994, around a month later. Written on the back of the photo is river back to normal. Note the pen marks which seem to show where the Cut had been made.

09 July 1994, river back to normal.
09 July 1994, river back to normal.

And about that rock groyne … This Crown Copyright photo from 1993 shows what seems to be a very much longer rock groyne.

Waikawa 1993, Crown Copyright photo.
Waikawa 1993, Crown Copyright photo.

View a full size, full quality 3.1Mb version of this aerial photo.

And if you’d like to know why rivers never run straight (for long), this brief video has a great explanation.

One thought on “River cut Report 08 July 2018”

  1. I had put my money on the 3.6m tide on Thursday evening, after what looks like another 4 days of rain. The new beach access track looks like it will be gone by then as well
    It reminds me of an old quote “Those who cannot remember the past are condemned to repeat it.”

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