Replace outdated flood model predictions on the current floor levels map.
Kate Lee made this Official Information request to Christchurch City Council
This request has an unknown status. We're waiting for Kate Lee to read a recent response and update the status.
From: Kate Lee
Dear Christchurch City Council,
I would like to request that the new hydraulic map of 1/10 year 1/50 year and 1/200 year flooding prediction in Christchurch held by the Stormwater and Waterways Asset Planning Team is made public.
Ideally this could be done as updated layers on the floor levels map, but if this is not possible, or requires too much work, to make it available as-is in a raw data shapefile format, or any geospatial format that is easiest to provide.
Yours faithfully,
Kate Lee
From: Official Information
Christchurch City Council
Tēnā koe Kate,
Thank you for your request. We note that this is not a request for
information but a request to update our website/create new work.
We've passed this onto the relevant team to see if this is a service
improvement that we can accommodate and will let you know the outcome.
If you have any queries, please feel free to contact me using the
reference 1349177. If any additional factors come to light which are
relevant to your request, please do not hesitate to contact me so that
these can be taken into account.
If you have not had a reply within 10 working days, please email
[1][Christchurch City Council request email]
Nāku noa iti, nā
Jess Griffin
Official Information Advisor
Te Ratonga Ture me te Manapori - Legal & Democratic Services
--------------------------------------------------------------
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solely for the use of the individual or entity to whom they are addressed.
The views expressed in this message are those of the individual sender and
may not necessarily reflect the views of the Christchurch City Council.
If you are not the correct recipient of this email please advise the
sender and delete the email.
[2]Christchurch City Council logo
References
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2. Christchurch City Council logo
https://ccc.govt.nz/
From: Kate Lee
Kia ora Jess,
Thank you for your swift response and for clarifying the legal framework. Please allow me to re-frame this as an OIA.
Can you please send me the new hydraulic map of 1/10 year 1/50 year and 1/200 year flooding prediction in Christchurch held by the Stormwater and Waterways Asset Planning Team in any geospatial format along with the technical report associated with it.
I can create a separate request if that is your preference.
Kind regards,
Kate Lee
From: Official Information
Christchurch City Council
Tēnā koe,
Thank you for the update Kate.
No new request will be required. I've now updated the relevant staff.
Nāku noa iti, nā
Jess Griffin
Official Information Advisor
Te Ratonga Ture me te Manapori - Legal & Democratic Services
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From: Kate Lee
Kia ora Jess,
It has been over 10 working days, could you let me know the status of this request?
Ngā mihi,
Kate Lee
From: Official Information
Christchurch City Council
Kia ora Kate,
Apologies for the delay in the response.
This request is still in process and we anticipate getting it to you
within the 20 working days (20 May 2025).
Apologies for the delay in this response, however most relevant staff were
pulled out of business as usual for the previous weeks due to the recently
ended state of emergency. At this point we do not anticipate that this
will require any further extensions in completing your request within a
regular timeframe.
Ngā mihi nui,
Jess Griffin
Official Information Advisor
Te Ratonga Ture me te Manapori - Legal & Democratic Services
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From: Official Information
Christchurch City Council
Tçnâ koe Kate,
On 19 April 2025, you requested the following information, under the Local
Government Official Information and Meetings Act 1987 (LGOIMA):
Can you please send me the new hydraulic map of 1/10 year 1/50 year and
1/200 year flooding prediction in Christchurch held by the Stormwater and
Waterways Asset Planning Team in any geospatial format along with the
technical report associated with it.
As part of our ongoing flood modelling programme, staff are building
comprehensive flood models for the city's major urban catchments. This
will support the creation of standardised flood extent maps suitable for
publication.
Christchurch City Council is currently developing updated flood maps for
the 1-in-50, and 1-in-200 year storm events and a new map for the 1-in-10
year storm events. However, the consolidated maps are still in development
and not yet available. The reports associated with the mapping will become
available when the mapping is completed. Due to this we will be declining
your request under section 17(d) the information requested is or will soon
be publicly available.
You have the right to ask the Ombudsman to investigate and review our
decision. Complaints can be sent by email to
[1][email address].
Publication of responses to LGOIMA requests
Please note: our LGOIMA responses may be published on the Christchurch
City Council website a month after they have been responded to, with
requesters’ personal details withheld. If you have any concerns about
this, please contact the Official Information team on
[2][Christchurch City Council request email].
Nâku noa iti, nâ
Jess Griffin
Official Information Advisor
Te Ratonga Ture me te Manapori - Legal & Democratic Services
--------------------------------------------------------------
This electronic email and any files transmitted with it are intended
solely for the use of the individual or entity to whom they are addressed.
The views expressed in this message are those of the individual sender and
may not necessarily reflect the views of the Christchurch City Council.
If you are not the correct recipient of this email please advise the
sender and delete the email.
[3]Christchurch City Council logo
References
Visible links
1. mailto:[email address]
2. mailto:[Christchurch City Council request email]
3. Christchurch City Council logo
https://ccc.govt.nz/
From: Kate Lee
Kia ora Jess,
I am delighted to hear that the Stormwater and Waterways Asset Planning Team are planning to publish the standardised flood extent maps soon along with the technical reports. As outlined as best practice for section 17(d) in the Ombudsman's guide*, would you mind letting me know exactly where and when in the next three months these are planned to be published?
Nga mihi,
Kate Lee
From: Kate Lee
Kia ora Jess,
Can you please let me know where and when Stormwater and Waterways Asset Planning Team are planning to publish the standardised flood extent maps soon along with the technical reports?
Yours sincerely,
Kate Lee
From: Official Information
Christchurch City Council
Tēnā koe Kate,
Apologies, I thought I had already sent this through. Staff have advised
that we are not yet at a stage where we can provide a publication date for
the updated flood extent map of the whole city. As mentioned in the
previous response, the various hydraulic catchments are at different
stages of map development. The Heathcote catchment is expected to be the
first to have the flood map and report published, currently estimated for
September this year; however, timeframes remain uncertain as the modelling
completion and validation process involves consultants and various teams
within Council. We will endeavour to provide you with an update on this
timeline in September.
The location of the information will be determined by Council’s IT team
once they have scoped the IT requirements. It is likely to be published on
our website or open GIS data platform. We will confirm this when we
provide you with an update on timeframes for map and report publishing.
Ngā mihi nui,
Jess Griffin
Official Information Advisor
Te Ratonga Ture me te Manapori - Legal & Democratic Services
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