Dunedin: Erosion issues at St Clair and Ocean Beach

Received from Paul Pope
Fri, 25 Mar 2016 at 3:01 p.m.

█ Message: I filmed this short video the other day and spliced in some information on how the erosion at St Clair actually happens. I don’t often use video, but it looks very compelling. I put it into the Beginners Guide to Coastal Conservation on Facebook yesterday and it’s had more than 7000 views, so people are interested in what’s going on.

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[view full screen]
Paul Pope Published on Mar 24, 2016
The Physics of Erosion
The erosion issues at St Clair Beach and the whole of Ocean Beach in Dunedin have become more and more serious in recent years. Understanding the reasons behind what people see at St Clair is very important. The community need to be able to make informed decisions about these damaging processes.

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Related Posts and Comments:
● 11.9.15 RAPID dune erosion continues —Council doesn’t give a toss
● 19.8.15 Paul Pope’s strategic overview of coastal conservation #Dunedin
● 11.8.15 DCC’s unmanaged retreat for South Dunedin
● 22.7.15 DCC Long Term Plan 2015/16 – 2024/25
10.4.15 DCC: Natural Hazards
28.3.15 DCC Draft Long Term Plan 2015/16 to 2024/25 —Consultation Open
23.11.13 DCC: St Clair esplanade and seawall [public forum] 27 November
18.10.13 DCC: Final vote tally + St Clair boat ramp
18.8.13 South Dunedin and other low lying areas
26.5.13 [bad news] St Clair seawall #FAIL
10.9.12 John Wilson Ocean Drive … reminder to all of DCC incompetence
30.7.12 ORC on hazard risks and land use controls
28.11.11 St Clair seawall and beach access

█ For more, enter the term *coastal* in the search box at right.

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Posted by Elizabeth Kerr

RAPID dune erosion continues —Council doesn’t give a toss

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Alex Gilks replies to article St Clair dunes ‘in no danger’ (ODT 3.9.15)

Published at ODT Online
Wed, 9 Sep 2015

Your say: Urgent action is needed
By Alex Gilks
Wayne Stephenson’s comments here, assuming they were reported accurately, seem quite a way off the mark. I’m no expert, but grew up near the dunes, and walk on the beach often.
I visited this morning, and the big sea earlier this week has carved off more of the top of the dune. The two big pines are about 5m and 10m from the edge of the erosion. Bill Brown is right: urgent action is needed. Big-scale protection at the bottom.
Putting aside the throwaway comment about the asteroid, here are the troubling things about this article:

• ‘no risk to property this year’ – this super short-term thinking should be criticized

• ‘if the dune’s foot was staying in place’ – the dune’s foot is absolutely not staying in place! The immediate reason for the dramatic erosion is that the toe of the dune has been completely hammered since the sand sausages were ruined. How can he not see that? Is he not actually visiting the site?

• the idea that the enemy is ‘winter’s storms’, and the implication that it will be ok again until next winter. Where does this come from? The south coast can get powerful southerlies at any time of year. Is there some data that you can use to show the frequency and time of year of southerly/easterly storms and high tides?

• sand sausages and sand replenishment as interim solutions, before ‘more permanent features in coming years’. Shouldn’t this receive more criticism? The previous sands sausages and sand replenishment worked for only what, a handful of years? Wouldn’t you just urgently undertake some more long-term solution?

For this to get real I think decision-makers need to walk along the ridge track from the Kettle Park area, see the shifting edge and the remaining area at the apex of the dune.
I’d take a botanist along too, to get a good gauge on the age of the trees that have been uprooted. The bigger ones must be 50-80 years old, yet you hear some people saying things like ‘this happened in the 70s/90s/a few years back’.
No. We need to get past this complacent idea that this is a seasonal thing, that it’ll replenish itself soon and will start working normally again in the near future.
ODT Link

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Received from Hype O’Thermia
Tue, 8 Sep 2015 at 10:36 a.m.

The sea does not adapt to humans

Increased storms and extreme weather – get off yer bike! Just for fun I googled “British houses that fell into the sea”, not a helluva rigorous search……..

One dark night in 1664, while local people were attending a wake, the whole village of Runswick slipped into the sea…
Thankfully, all the villagers escaped but by morning there was only one house left standing… the house of the dead man!
http://www.visitengland.com/experience/discover-village-fell-sea

As late as 1817 when George Young, the Whitby historian, wrote of the incident, articles including a silver spoon and coins which had been carried from the rubble by the tide were still being washed back.
http://www.chrisscottwilson.co.uk/runswick-bay/4551457861

It wasn’t always so peaceful – one night in 1664 the entire village slid into the sea! Returning from a wake, one of the villagers noticed the steps of his house slipping away beneath his feet. He gave the alarm and most of the village fled to safety. By morning only one house remained standing- the house of the deceased man. The village was rebuilt further around the shore but land slippage continued to be a problem. In 1970 a new sea wall was finally built, thankfully securing the village’s future.
http://www.simonseeks.com/travel-guides/hands-all-those-whove-heard-runswick-bay__167571

In medieval times, when Dunwich was first accorded representation in Parliament, it was a flourishing port and market town about thirty miles from Ipswich. However, by 1670 the sea had encroached upon the town, destroying the port and swallowing up all but a few houses so that nothing was left but a tiny village. The borough had once consisted of eight parishes, but all that was left was part of the parish of All Saints, Dunwich – which by 1831 had a population of 232, and only 44 houses (“and half a church”, as Oldfield recorded in 1816).
https://en.wikipedia.org/wiki/Dunwich_(UK_Parliament_constituency)

Robin Hood’s Bay, North Yorkshire
The raging storms have taken their toll, claiming many buildings as the limestone cliffs erode. In 1780, 22 cottages fell into the sea. Today a rock seawall helps protect the picturesque village.
http://www.britainexpress.com/villages/robinhood.htm

[ends]

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Related Posts and Comments:
● 19.8.15 Paul Pope’s strategic overview of coastal conservation #Dunedin
● 11.8.15 DCC’s unmanaged retreat for South Dunedin
● 22.7.15 DCC Long Term Plan 2015/16 – 2024/25
10.4.15 DCC: Natural Hazards
28.3.15 DCC Draft Long Term Plan 2015/16 to 2024/25 —Consultation Open
23.11.13 DCC: St Clair esplanade and seawall [public forum] 27 November
18.10.13 DCC: Final vote tally + St Clair boat ramp
18.8.13 South Dunedin and other low lying areas
26.5.13 [bad news] St Clair seawall #FAIL
10.9.12 John Wilson Ocean Drive … reminder to all of DCC incompetence
30.7.12 ORC on hazard risks and land use controls
28.11.11 St Clair seawall and beach access

█ For more, enter the term *coastal* in the search box at right.

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Posted by Elizabeth Kerr

*Images: dunedinisforlovers.blogspot.co.nz – Majestic Mansions (April 2010); world50th.files.wordpress.com – dunes (February 2015)

Paul Pope’s strategic overview of coastal conservation #Dunedin

Received from Paul Pope
Wed, 19 Aug 2015 at 10:52 a.m.

█ Message: I see sand dunes and erosion are a hot topic on the What if? website. I thought I would send you a submission I made to the City Council on Ocean Beach Domain in 2008/2009 which gives a detailed strategic overview of coastal issues and provides a basis for a variety of solutions to a number of problems including land occupation. Also I have created a Facebook page under my personal account called: The beginners guide to coastal conservation.
I created it to provide people with information on coastal issues.

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[screenshot]

█ Download: Paul Pope: Ocean Beach Domain Submission (PDF, 1 MB)

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Related Post and Comments:
● 11.8.15 DCC’s unmanaged retreat for South Dunedin
● 22.7.15 DCC Long Term Plan 2015/16 – 2024/25
18.7.15 DCC Cycleways: SEEING RED, apology NOT accepted
14.7.15 DCC strategies needed like a hole in the head
12.6.15 Fairfax: DCC has no insurance cover for flood-damaged roads
5.6.15 WEATHER is not climate change; this is not the 100-year flood
4.6.15 Exchange makeover —or pumps and pipe renewals, um
3.6.15 Civil Defence response to Dunedin FLOODING
10.4.15 DCC: Natural Hazards
28.3.15 DCC Draft Long Term Plan 2015/16 to 2024/25 —Consultation Open
14.10.14 ORC: New strategic plan fosters Otago prosperity
12.9.14 ORC: City bus services, submissions
10.12.13 ORC restructures directorates
23.11.13 DCC: St Clair esplanade and seawall [public forum] 27 November
18.10.13 DCC: Final vote tally + St Clair boat ramp
18.8.13 South Dunedin and other low lying areas
26.5.13 [bad news] St Clair seawall #FAIL
26.2.13 DCC binge spending alert: Proposed South Dunedin cycle network
10.9.12 John Wilson Ocean Drive … reminder to all of DCC incompetence
30.7.12 ORC on hazard risks and land use controls
7.6.12 Dunedin stormwater: more differences between ORC and DCC
28.11.11 St Clair seawall and beach access
25.11.11 South Dunedin and other flood zones
7.12.09 Coastal protection zones
14.11.09 From the log books of a twenty-year distress #DCC
24.8.09 1. STS response – appeal 2. Coastal protection – comments

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Posted by Elizabeth Kerr

DCC’s unmanaged retreat for South Dunedin #naturalhazards

█ SOME BUILDINGS NOW JUST 12M FROM DUNE’S FACE

Bill Brown, who initially raised his concerns in the Otago Daily Times last month, feared no urgency had been shown by council staff since then.

Spring’s king tides were still to come and could bring dramatic further erosion, he said in his written submission.

### ODT Online Tue, 11 Aug 2015
Disappearing dunes ‘an immediate problem’
By Craig Borley
Dunes along Dunedin’s Ocean Beach have receded nearly 9m in the past four weeks and will continue to disappear unless immediate action is taken, a St Clair resident told the Dunedin City Council yesterday …. [Bill Brown] took those concerns to the council’s community and environment committee, where he presented several aerial photographs showing the extent of recent erosion.
Read more

● ODT: ORC has role to play
Responsibility for erosion repairs at Dunedin’s Ocean Beach may not lie solely with the Dunedin City Council, its community and environment committee heard yesterday

● ODT: Erosion problem for rugby club
The Dunedin Rugby Football Club has made no decision on where its future lies but its training lights have been out of use because of costal erosion and sand is encroaching on to its main ground.

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### ODT Online Fri, 10 Jul 2015
Beach erosion: ‘For God’s sake, it’s time to take action’
By Craig Borley
Permanently fix the erosion of St Clair’s sand dunes or give up on most of South Dunedin – there are no other options, a St Clair resident believes. Heavy seas in the past month have washed out several metres of sand dunes.
Read more

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St Clair Beach / Esplanade
(top) wikimedia.org – historical view | uniquelynz.com – 2014 view

### ODT Online
Sea wall plan ‘not about savings’
By Chris Morris on Mon, 24 Nov 2014
A squeeze on Dunedin City Council finances is not behind a push to defer multimillion-dollar options to protect the St Clair sea wall, Dunedin Mayor Dave Cull insists. A council staff report recommends any plans for major capital works – such as a groyne to protect the sea wall and properties behind it – be put on hold.
Read more

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Managed retreat….

### ODT Online Thu, 23 Feb 2012
Engineer says let erosion take South Dunedin
By Chris Morris
Allowing coastal erosion to reclaim Kettle Park should be the start of a wider retreat from South Dunedin, a Dunedin City Council hearings committee has heard. The call came from Sustainable Dunedin City co-chairman Phillip Cole – a former civil engineer of 31 years’ experience – as the committee considered a second day of submissions on its draft management plan for Ocean Beach.
Read more

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DCC Webmap – South Dunedin Jan/Feb 2013 [click to enlarge]

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DCC Natural Hazard Maps
Note: These maps are DRAFT only. The boundaries of hazard areas and hazard risk classification may be subject to change based on consultation feedback and further assessment ahead of notification. We strongly encourage feedback on any adjustments that may be required.
You also can use the interactive District plan map in the related information section, to see the current District Plan zoning, and the potential 2GP zoning, including the proposed hazard overlay zones, for your property

██ http://www.dunedin.govt.nz/whats-on/2gp/natural-hazards-phase/natural-hazard-maps

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The maps identified “extreme risk” land in red, which some Dunedin homeowners had “instantly associated with red-zoning in Christchurch”. –Sally Dicey, DCC policy planner

### ODT Online Thu, 25 Sep 2014
Concerns raised over natural hazards plan
By Chris Morris
Homeowners worried about being left in a Christchurch-style red zone – at least on paper – are calling for changes to the Dunedin City Council’s natural hazards plan. Their concerns come as council staff wade through nearly 200 submissions received since the council’s plan to tighten its grip on some city properties, to better protect against natural hazards, was announced in June.
Read more

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### ODT Online Mon, 12 Jan 2009
Council weighs costly Esplanade options
By Chris Morris
The Dunedin City Council is weighing several “quite expensive” options aimed at preventing improvements to the Esplanade, at St Clair, crumbling in the next big storm. Parts of the Esplanade upgrade, which has so far cost more than $6 million, have had repeated structural problems since being largely completed in 2004.
Read more

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### ODT Online Fri, 19 Sep 2014
ODT: 100 Years Ago
St Clair to St Kilda esplanade proposed –ODT, 19.9.1914
The Amenities Committee of the Dunedin Expansion League is displaying a laudable energy in urging upon the Ocean Beach Domain Board the desirability of adopting a scheme for the construction of an esplanade along the sea-front from St Clair to St Kilda. Plans have been secured from the city engineer, and the Committee has fortified itself by obtaining a report upon Mr McCurdie’s proposals from the engineer of the Harbour Board, the advice of a marine engineer being justly considered to be of importance in connection with such an undertaking.
Read more

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Related Posts and Comments:
10.4.15 DCC: Natural Hazards
10.12.13 ORC restructures directorates
23.11.13 DCC: St Clair esplanade and seawall [public forum] 27 November
18.10.13 DCC: Final vote tally + St Clair boat ramp
26.5.13 [bad news] St Clair seawall #FAIL
10.9.12 John Wilson Ocean Drive … reminder to all of DCC incompetence
30.7.12 ORC on hazard risks and land use controls
28.11.11 St Clair seawall and beach access
7.12.09 Coastal protection zones
14.11.09 From the log books of a twenty-year distress #DCC
24.8.09 1. STS response – appeal 2. Coastal protection – comments

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Posted by Elizabeth Kerr

Stadium Review: dark yet rosy thoughts

ODT 28.8.14 (page 12)

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Posted by Elizabeth Kerr

DCC: Final vote tally + St Clair boat ramp

### ODT Online Fri, 18 Oct 2013
Final tally increases mayor’s vote margin
By Chris Morris
Dunedin Mayor Dave Cull extended his victory margin slightly when the Dunedin City Council’s final election results were released yesterday.
The figures, which added about 340 special votes not previously included, saw Mr Cull’s tally in the mayoral race rise by 158 votes, from 18,446 to 18,604. That meant his winning margin was extended by 113 votes, from 12,017 to 12,130, over nearest rivals Hilary Calvert (now with 6474 votes) and Cr Lee Vandervis (5872).
The final results saw small increases in the votes cast for all nine mayoral candidates, as well as the city’s 14 elected councillors.
Read more

Related Posts and Comments:
13.10.13 Pressuring Cull and his GD Party . . .
3.10.13 Exercise your right to VOTE
29.9.13 Alert: Dunedin voters —Mayors gain more powers

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Council roading maintenance engineer Peter Standring said the first rock placement was included in the already documented $500,000 cost of immediately fixing [the] problem. The rocks placed this week cost about $60,000. Consultants hired by the council to look into the problem plan to report to the council next week, and may be required to do more work.

### ODT Online Fri, 18 Oct 2013
Start on Esplanade boat ramp close
By Debbie Porteous
The Dunedin City Council will begin building a temporary rescue boat launching ramp at the north end of the St Clair Beach sea wall next week, after this week dumping another 1000 tonnes of rock along the wall. The ramp is to run from the north end of the Esplanade down to the beach, and will be used by the St Clair Surf Lifesaving Club to get its inflatable rescue boats to the water. The club lost its original concrete ramp after the sea wall near the ramp was undermined and the fill behind the wall sucked out to sea earlier this year.
A consent application was lodged, but the ramp would be built at the same time as the application progressed, as it needed to be in place for the start of beach patrols at the end of this month.
Read more

Related Posts and Comments:
26.5.13 [bad news] St Clair seawall #FAIL
25.6.13 DCC Annual Plan 2013/14

St Clair sea wall, Campbell Live (TV3) 17.6.13 [screenshots]

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Posted by Elizabeth Kerr

*Image (top) – Emperors new clothes [catherinewhite.files.wordpress.com] re-imaged by whatifdunedin

[bad news] St Clair seawall #FAIL

Comment received from Stu.
2013/05/26 at 7:29 pm

St Clair sea wall compromised? Webcam image refreshes every 1 minute.

http://media.wickednetworks.co.nz/current-stclair.jpg

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Tweet to @whatifdunedin from @lowercasewriter.

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Related Post and Comments:
28.11.11 St Clair seawall and beach access

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Posted by Elizabeth Kerr

Portobello Road Consultation —Public Meeting | Monday 13 May

Here is the latest web update for the Portobello Community.

This week we look at the road widening project and the proposed changes that the City Council has made to the initial plan. The City Council will be giving the community another opportunity to have your say on the proposal and the changes they have made to the plan since the consultation period in March 2013. This is an important issue for our township and community and the meeting is to be held at 7:00 pm on Monday, 13 May 2013 at the Coronation Hall. Pass this message onto your friends, neighbours, colleagues and whanau.

Regards
Paul Pope – Chairman, Portobello Incorporated

● The meeting will be attended by council staff, Cr Jinty MacTavish, and Otago Peninsula Community Board members.

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Related Post and Comments:
28.3.13 | Updated 29.3.13
DCC Draft Annual Plan 2013/14: Portobello Harington Point Road Improvements Project

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Posted by Elizabeth Kerr

DCC Draft Annual Plan 2013/14: Portobello Harington Point Road Improvements Project

Updated Post 29.3.13

Received yesterday by email.

Something that seems to have slipped the radar in Dunedin news of late is the WIDENING of Portobello Harington Point Road on the Otago Peninsula.

Looking at the Draft Annual Plan, the City Council intends to spend the following on what amounts to an environmental and heritage damaging folly. That’s only 33-34 % of the budget, given NZTA will subsidise the remaining 66-67% of the project.

[click on image to enlarge]

See page 24, Section 1 Group of Activities (PDF, 1.5 MB)
and page 142, Section 2 Financial Statements (PDF, 1.2 MB)

The road widening (including the Vauxhall and Macandrew Bay areas already completed) will reclaim nearly 11 hectares of the Otago Harbour — a conservative measurement given plans show significantly more reclamation if the topography requires it.

Consultation on the current design closed yesterday, Thursday 28 March, indicating approval of the plan is a given despite the consultation process for the Annual Plan this year and in years to come.

[29.3.13 – The plans are not available for viewing online, why not?]

There will be irrevocable damage to the Peninsula and Harbour landscape, heritage features and the ecology if this misguided piece of engineering continues.

It is feared the Council has the bit between its teeth on this project — described as being about “liveability”, according to Mayor Cull at the Portobello Annual Plan ‘roadshow’.

It might be worth pointing out to your readers that they look closely at the Draft Annual Plan in regards to this area of Council expenditure.

Searching Council for cost benefit and recreational analyses fails to show much other than what is in the June 2008 Cycle Strategy (PDF, 787 KB).

[See also: Dunedin’s Proposed Cycle Network, adopted August 2011]

Few will have problems with the desirability of access, but the lack of design sensitivity and impact on the values of the area seem inconsistent with the value of the Peninsula and Harbour to the community and our economy.

This is certainly an issue worth looking at more deeply.

[ends]

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Posted by Elizabeth Kerr