Greater Christchurch Recovery Update – Issue 13

CERA have published the September edition of the Greater Christchurch Recovery Update. An online version is here. Issues covered are:

  • Support for a new Christchurch central city
  • Welcoming New Zealand’s Olympians
  • Christchurch Central Recovery Plan
    • Land acquisition
    • Papa o Otakaro/Avon River Precinct
    • Invest Christchurch
  • Survey to gauge Cantabrians’ wellbeing
  • Residential red zone homeowners meet an important deadline
  • New start for long-time Southshore couple
  • “Cathedral Conversations”
  • Southshore residents take the lead in their own recovery
  • Central city punting returns
  • And updates from:
    • Gerry Brownlee, Minister for Canterbury Earthquake Recovery
    • Roger Sutton, CERA Chief Executive
    • Ngāi Tahu
    • SCIRT
    • EQC
    • Environment Canterbury
    • Christchurch City Council
    • Selwyn District Council
    • Waimakariri District Council

Earthquake Recovery Strategy released

CERA have made the Christchurch earthquake Recovery Strategy available on their website here. There will be public “engagement opportunities”, which are set out here. From the CERA website:

The Recovery Strategy provides a vision, goals and a road map for ensuring the success of greater Christchurch for recovery and future leadership in earthquake resilience. The Recovery Strategy Vision is: Greater Christchurch recovers and progresses as a place to be proud of an attractive and vibrant place to live, work, visit and invest – mō tātou, ā, mō kāuri ā muri ake nei – for us and our children after us. The community is at the heart of the vision and the success of recovery.

As far as community engagement is concerned, this is CERA’s commitment to the process:

CERA considers ongoing engagement is required to successfully implement the Recovery Strategy. CERA’s Community Engagement Strategy [PDF 65KB] is a commitment to work transparently and inclusively. It commits CERA to the following when involving communities in the development of programmes and plans for recovery:

  • inclusivity – seeking out the voices of those that might otherwise not be heard, recognising that communities have diverse needs;
  • integrity – engaging with communities in honest, consistent and responsible ways;
  • building good relationships and earning respect – recognising that this requires time, attention and trust;
  • communicating in an honest, sensitive and timely fashion – recognising that people need access to information that can help them make decisions for their futures; and
  • clarity and accountability – so that everyone knows who is making the final decision and how much influence people and communities can have on the decisions that need to be made to rebuild and revitalise Canterbury.

How community engagement is undertaken during the development of the recovery programmes and plans will vary depending on the nature of, and those involved in, the issues being addressed. In line with the International Association for Public Participation spectrum of public participation [PDF 228KB], CERA’s community engagement framework [PDF 228KB] uses different tools such as website information, written submissions, public meetings, stakeholder workshops and community forums.

CERA survey on what people want from the rebuilt city centre

CERA are conducting an on-line Christchurch Central City Commercial Property Study of what is needed for the rebuilt city centre.

From the CERA website:

CERA is undertaking an in-depth survey to find out what property and business owners, and their customers, want from the re-built city centre.  This survey is designed to capture property owners’ and users’ intentions so CERA can help the government and council put the draft Christchurch Central City Plan into action.

As well as seeking input from property and business owners there is also a survey for customers.
A wide range of issues are covered including where you would like to to see retail and business premises located, inner city safety, the highest level building you would be prepared to work in (and presumably be a customer in), and lots else.

The survey starts here. Give it a go.

Land stability in the inner city – Tonkin & Taylor report

The city council has released Tonkin & Taylor’s interpretative report on the central city (land within the Four Avenues – Fitzgerald, Moorhouse, Deans & Harper, Bealey – but excluding Hagley Park). A copy of the report can be downloaded from here.

The following are from the report’s executive summary:

No areas within the CBD or adjacent commercial areas were identified as having ground conditions that would preclude rebuilding on those sites, although more robust foundation design and/or ground improvement may be required. The risks of lateral spreading adjacent to some sections of the Avon River will require detailed geotechnical assessments, however, the adoption of a minimum 30m set-back required for creation of the Avon River Park will likely preclude the worst affected areas from future development.

Christchurch is not unique in being located on soils susceptible to liquefaction within a seismically active region. There are a number of cities and large urban centres around the world (including Wellington on the North Island), where the level of seismic hazard is similar to or greater than that at Christchurch. Presuming that it is economically feasible to utilise appropriate foundation / ground improvement systems, there are few sites that would be considered unsuitable for development purely on the basis of a liquefaction hazard.

The following are a few extracts from the body of the report. While repeated here out of context, they may help understand the complexity of the geology of parts of the inner city.
It is important to appreciate that, whilst the presence of sand boils is a confirmation that liquefaction has occurred, the absence of sand boils or other ground disturbance does not mean that liquefaction has not occurred beneath the surface. The extensive coverage of land within the central city by large footprint buildings and thick pavements may have prevented significant formation of sand boils. Additionally, there are many locations within the central city where a relatively thick crust of non-liquefiable materials may have prevented surface expression of liquefaction. (pp 46-7)

The change in ground elevation since 04 September 2010 (inferred from the LiDAR data and taking account of likely regional tectonic uplift/subsidence), suggests that ground deformation has occurred in areas where little or no land damage was observed. (p 47)

The analyses indicate that a liquefaction hazard is present across virtually the whole of the CBD and adjoining commercial areas, and is not limited to those locations where liquefaction-induced land damage has been observed (i.e. suggesting that area wide deep liquefaction is likely to have occurred). This observation is considered generally consistent with the LiDAR data which suggests settlement may have occurred in some areas where no land damage has been mapped at the ground surface. (p 51)

It should be recognised that, apart from a few localised areas, the overall impact of liquefaction and lateral spreading on the central city resulting from the recent seismic events, has not been as severe as that which has occurred in many of the eastern suburbs and Kaiapoi. This is considered to be due to a combination of the generally better ground conditions present, greater land coverage from buildings and heavy pavements, lower groundwater levels and more substantial foundations. (p 56)


Central City Plan – update

The CCC yesterday provided an update on progress with the Central City Plan. It is currently being amended for presentation to council on the 15th of December.

The status of the plan, the draft plan itself, and the technical appendices that will accompany it can be found here. The appendices that can be downloaded are:

Appendix A  Public Consultation Summary
Appendix B  Central City Plan consultation phase key stakeholder briefings summary
Appendix B  Central City Plan Stakeholder meetings Summary May – July 2011 UPDATE
Appendix C  Remembering Christchurch Presentation
Appendix E  Population Forecasts and Demographics
Appendix F  Demand Analysis
Appendix G  Study of Trends for New 4 to 8 Level Buildings in Christchurch CB
Appendix G  CCC-Feasibility.gslm-61 22.Oct 11
Appendix H  Character Descriptions of Areas
Appendix I  Retail Peer Review
Appendix J  Tourism Strategy Peer Review
Appendix K  CCP Community wellbeing framework
Appendix L  Central_City_Plan_Integrated Wellbeing and Sustainability Assessment
Appendix N  Transport Choice Traffic Analysis
Appendix O  Transport Choice Public Transport
Appendix P  Parking Analysis
Appendix R  Colour Coded Status of Group 12 Listed buildings 2011-11-15