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Images for River Avon; more images...

Images, UC QuakeStudies

A bunch of flowers laid beside the Avon River during the River of Flowers event held in Riccarton Bush, commemorating the second anniversary of the 22 February earthquake. The photographer comments, "The organisers told me these were brought by an elderly South African woman. She had a disability so couldn't make it down to the riverbank herself, so she asked the organisers to throw them in on her behalf".

Images, UC QuakeStudies

An aerial photograph captioned by BeckerFraserPhotos, "The Avon River windings its way through densely pupulated housing. The Gayhurst Road bridge can be seen. The piece of land circumscribed by the loop of the river is all zoned red, as is the land to the left of the photo. On the right, most of the land is zoned green or orange".

Images, UC QuakeStudies

An aerial photograph of a residential area in Avonside. The photograph has been captioned by BeckerFraserPhotos, "The dominant road in this picture is Avondale Road which crosses the River Avon. To the left of this photograph is all zoned red apart from a small piece on the other side of the river. On the right-hand side of Avondale Road, some streets are zoned green although the streets closest to the river are red-zoned".

Images, UC QuakeStudies

A truck used to drain the septic tanks installed in front of Avonside properties to allow residents to use their toilets after the 4 September 2010 earthquake. The truck's operator has parked it beside the Avon River on Avonside Drive while he takes a break from working.

Images, UC QuakeStudies

A truck used to drain the septic tanks installed in front of Avonside properties to allow residents to use their toilets after the 4 September 2010 earthquake. The truck's operator has parked it beside the Avon River on Avonside Drive while he takes a break from working.

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "A section of Avonside Drive shows how the infrastructure is no longer maintained to the same level, with regard to roading, sewage and water services. Even the grass on the banks of the River Avon is no longer mown as regularly".

Audio, UC QuakeStudies

Part four of the audio that makes up Gap Filler's 29th project, the Transitional City Audio Tour. This part of the tour begins in the Re:Start Mall on Cashel Street and includes commentary on the performance Last Day of Mankind at the Bridge of Remembrance. The tour then moves up Oxford Terrace, along the banks of the Avon River, until it reaches Worcester Boulevard. Turning left, it travels down Worcester Boulevard, past the Christchurch Art Gallery, providing commentary on the new and old art in the area, and the Christchurch Arts Centre. Lastly, it moves up Montreal towards Cranmer Square.

Research papers, University of Canterbury Library

Following the Canterbury earthquake sequence of 2010-11, a large and contiguous tract of vacated ‘red zoned’ land lies alongside the lower Ōtākaro / Avon River and is known as the Avon-Ōtākaro Red Zone (AORZ). This is the second report in the Ecological Regeneration Options (ERO) project that addresses future land uses in the AORZ. The purpose of this report is to present results from an assessment of restoration opportunities conducted in April 2017. The objectives of the assessment were to identify potential benefits of ecological restoration activities across both land and water systems in the AORZ and characterise the key options for their implementation. The focus of this report is not to provide specific advice on the methods for achieving specific restoration endpoints per se. This will vary at different sites and scales with a large number of combinations possible. Rather, the emphasis is on providing an overview of the many restoration and regeneration options in their totality across the AORZ. An additional objective is to support their adequate assessment in the identification of optimum land uses and adaptive management practices for the AORZ. Participatory processes may play a useful role in assessment and stakeholder engagement by providing opportunities for social learning and the co-creation of new knowledge. We used a facilitated local knowledge based approach that generated a large quantity of reliable and site specific data in a short period of time. By inviting participation from a wide knowledge-holder network inclusivity is improved in comparison to small-group expert panel approaches. Similar approaches could be applied to other information gathering and assessment needs in the regeneration planning process. Findings from this study represent the most comprehensive set of concepts available to date to address the potential benefits of ecological regeneration in the AORZ. This is a core topic for planning to avoid missed opportunities and opportunity costs. The results identify a wide range of activities that may be applied to generate benefits for Christchurch and beyond, all involving aspects of a potential new ecology in the AORZ. These may be combined at a range of scales to create scenarios, quantify benefits, and explore the potential for synergies between different land use options. A particular challenge is acquiring the information needed within relatively short time frames. Early attention to gathering baseline data, addressing technical knowledge gaps, and developing conceptual frameworks to account for the many spatio-temporal aspects are all key activities that will assist in delivering the best outcomes. Methodologies by which these many facets can be pulled together in quantitative and comparative assessments are the focus of the final report in the ERO series.

Images, UC QuakeStudies

An aerial photograph of the Christchurch central city. The photograph is captioned by BeckerFraserPhotos, "Brannigans building is in the centre of the photograph with Gloucester Street running through the middle of the photograph. The photograph shows the rear of the building".

Audio, UC QuakeStudies

Part five of the audio that makes up Gap Filler's 29th project, the Transitional City Audio Tour. This part of the tour begins on Montreal Street near Cranmer Square. It includes commentary on the Cranmer Centre and the Windsor Hotel, two demolished buildings which were on the opposite corners of Armagh and Montreal Streets. The tour then moves down Armagh Street, providing commentary on the Canterbury Provincial Chambers Buildings. When the tour reaches the bridge over the Avon River, it crosses to the other side and follows the river to Gloucester Street where there is commentary on Chancery Lane. The tour then travels up Colombo Street and back to Victoria Square, with commentary on the Queen Victoria and James Cook statues. The tour finishes at the Pallet Pavilion, where it began, on the corner of Kilmore and Durham Streets.

Articles, UC QuakeStudies

A copy of a letter from Seamus O'Cromtha which was sent to the Chief Executive of the Ministry of Business, Innovation and Employment (MBIE) on 3 September 2016. The letter was sent on behalf of Empowered Christchurch. In the letter, O'Cromtha calls on the Chief Executive to instruct the Christchurch City Council to stop issuing building consents in areas such as the Avon River floodplain until stop banks have been erected along the river. O'Cromtha comments, "Properties that should be protected by stop banks currently have no protection against flooding".

Images, UC QuakeStudies

A photograph of a sign from the Christchurch City Council, ECan and the Canterbury District Health Board warning people over the contamination in the rivers after the September earthquake. The sign reads, "Warning, contaminated water. Due to sewage overflows this water is unsafe for human contact and activity and is a Public Health Risk. Please keep all people and pets out of contact with the water and do not consume any seafood or shellfish collected from this area". In the background, workers from Treetech clean up wood and leaves from felled trees.

Images, UC QuakeStudies

An aerial photograph captioned by BeckerFraserPhotos, "Victoria Square is at the centre of this picture with its green lawns and trees. The bare patch of earth in front s the demolition sites of the Allan McLean building, the Oxford on Avon, and Plunket House. The contract to demolish the Crowne Plaza Hotel has been let, while the fate of the Town Hall is still undecided. The Convention Centre is coming down. On the very bottom, slightly to the right is the Medlab building which is also to be demolished. In the bottom left corner is the PWC building which is also to be demolished".

Images, UC QuakeStudies

An aerial photograph of the Copthorne Hotel on Colombo Street. The photograph has been captioned by BeckerFraserPhotos, "When the PricewaterhouseCoopers building is demolished, the Copthorne Central Hotel will be alone on the block. Oxford on the Avon and Plunket House are also gone from Oxford Terrace, and on the other side of the river is the demolition site of the PGC building where 18 people died".

Images, UC QuakeStudies

A photograph looking north down Gayhurst Road, taken from the side of the bridge over the Avon River. Residential properties used to line the left-hand side of the road, and St Paul's church once stood on the corner. This was before the land was red-zoned as a result of the 2010 and 2011 Canterbury earthquakes. Separated cycle ways have recently been installed on both sides of the road. The photograph was modelled off an image taken by Mark Lincoln in September 2010.

Images, UC QuakeStudies

A photograph looking north down Gayhurst Road, taken from the side of the bridge over the Avon River. Residential properties used to line the left-hand side of the road, and St Paul's church once stood on the corner. This was before the land was red-zoned as a result of the 2010 and 2011 Canterbury earthquakes. Separated cycle ways have recently been installed on both sides of the road. The photograph was modelled off an image taken by Mark Lincoln in September 2010.

Images, UC QuakeStudies

A photograph looking north down Gayhurst Road, taken from the side of the bridge over the Avon River. Residential properties used to line the left-hand side of the road, and St Paul's church once stood on the corner. This was before the land was red-zoned as a result of the 2010 and 2011 Canterbury earthquakes. Separated cycle ways have recently been installed on both sides of the road. The photograph was modelled off an image taken by Mark Lincoln in September 2010.

Images, UC QuakeStudies

A sewage pumping station on Avonside Drive has been lifted out of the ground by liquefaction. In the background, the damaged Snell Place footbridge over the Avon River is closed off with cordon fencing. The photographer comments, "A Sunday afternoon ride to New Brighton, then back via Aranui, Wainoni, Dallington, and Richmond. Not a cheerful experience. Dallington footbridge. The two pieces of this foot bridge have moved towards each other, so the bridge has developed quite a peak. The sewage pumping station has been heaved out of the ground by hydraulic pressure during quakes".

Images, UC QuakeStudies

Personnel from the USAID Disaster Assistance Response Team (DART) standing in Firefighters Reserve, in preparation for the two minutes of silence to honour the people who lost their lives in the 22 February 2011 earthquake. Just out of the picture is a sculpture fashioned from 5 tonnes of structural steel salvaged from the site of the World Trade Centre following their collapse on 11 September 2001 in terrorist attacks on New York City. The sculpture is now used as a tribute to firefighters in New Zealand.

Research papers, University of Canterbury Library

Liquefaction-induced lateral spreading during earthquakes poses a significant hazard to the built environment, as observed in Christchurch during the 2010 to 2011 Canterbury Earthquake Sequence (CES). It is critical that geotechnical earthquake engineers are able to adequately predict both the spatial extent of lateral spreads and magnitudes of associated ground movements for design purposes. Published empirical and semi-empirical models for predicting lateral spread displacements have been shown to vary by a factor of <0.5 to >2 from those measured in parts of Christchurch during CES. Comprehensive post- CES lateral spreading studies have clearly indicated that the spatial distribution of the horizontal displacements and extent of lateral spreading along the Avon River in eastern Christchurch were strongly influenced by geologic, stratigraphic and topographic features.

Research papers, University of Canterbury Library

The Canterbury earthquakes resulted in numerous changes to the waterways of Ōtautahi Christchurch. These included bank destabilisation, liquefaction effects, changes in bed levels, and associated effects on flow regimes and inundation levels. This study set out to determine if these effects had altered the location and pattern of sites utilised by īnanga (Galaxias maculatus) for spawning, which are typically restricted to very specific locations in upper estuarine areas. Extensive surveys were carried out in the Heathcote/Ōpāwaho and Avon/Ōtākaro catchments over the four peak months of the 2015 spawning season. New spawning sites were found in both rivers and analysis against pre-earthquake records identified that other significant changes have occurred. Major changes include the finding of many new spawning sites in the Heathcote/Ōpāwaho catchment. Sites now occur up to 1.5km further downstream than the previously reported limit and include the first records of spawning below the Woolston Cut. Spawning sites in the Avon/Ōtākaro catchment also occur in new locations. In the mainstem, sites now occur both upstream and downstream of all previously reported locations. A concentrated area of spawning was identified in Lake Kate Sheppard at a distinctly different location versus pre-quake records, and no spawning was found on the western shores. Spawning was also recorded for the first time in Anzac Creek, a nearby waterway connected to Lake Kate Sheppard via a series of culverts.

Research papers, University of Canterbury Library

The Canterbury Earthquake Sequence 2010-2011 (CES) induced widespread liquefaction in many parts of Christchurch city. Liquefaction was more commonly observed in the eastern suburbs and along the Avon River where the soils were characterised by thick sandy deposits with a shallow water table. On the other hand, suburbs to the north, west and south of the CBD (e.g. Riccarton, Papanui) exhibited less severe to no liquefaction. These soils were more commonly characterised by inter-layered liquefiable and non-liquefiable deposits. As part of a related large-scale study of the performance of Christchurch soils during the CES, detailed borehole data including CPT, Vs and Vp have been collected for 55 sites in Christchurch. For this subset of Christchurch sites, predictions of liquefaction triggering using the simplified method (Boulanger & Idriss, 2014) indicated that liquefaction was over-predicted for 94% of sites that did not manifest liquefaction during the CES, and under-predicted for 50% of sites that did manifest liquefaction. The focus of this study was to investigate these discrepancies between prediction and observation. To assess if these discrepancies were due to soil-layer interaction and to determine the effect that soil stratification has on the develop-ment of liquefaction and the system response of soil deposits.