A video of water erupting out of a burst water main in the Christchurch central city.
An entry from Ruth Gardner's blog for 13 December 2012 entitled, "Ward's Water".
An entry from Ruth Gardner's blog for 2 June 2012 entitled, "Waste Water Waiting".
A presentation by Dr Matthew Hughes (Department of Civil and Natural Resource Engineering) on "Liquefaction Impacts on Christchurch's Water and Wastewater Networks".
A laminated sign for the 2011 Festival of Flowers attached to a wooden planter. The plants in the planter are dry and dead. The photographer comments, "The theme for the 2011 Festival of Flowers was 'burst! of water'. The Christchurch February earthquake came and water and sand called liquefaction burst out of the ground all around the area. Ironically the plants for the festival were left unattended in the cordoned off red zone and they would have loved a little burst of water".
Liquefaction in a residential property in North New Brighton. The fence has subsided into the silt, and a temporary water line runs along the street in front. The photographer comments, "Because this is in the Christchurch red zone the people living here, if they have lost one of the normal essentials such as sewage they will not get it repaired. It is get out or live in third world conditions. The blue line is the temporary water pipe, which will be removed when the area is depopulated".
The top of the water slides in the QEII swimming pool, exposed by its demolition. The slides themselves have been broken off, leaving only the entry points. The photographer comments, "After assessment of the damage caused by the numerous earthquakes in Christchurch, New Zealand they decided to demolish the QEII stadium and it's swimming pool".
The small wharf area of the now gone Pleasant Point Yacht Club has already been taken over by the Pied Shags (cormorants). It is under water now except for low tide. Note the dead pine tree in background. Many have died because of the salt water their roots are in.
Interview with Surface Water Planner, Graham Harrington. This interview was conducted by Emma Kelland as part of Deirdre Hart's Coastal and River Earthquake Research project.
The town of Lyttelton on Saturday morning (15 August) was thrown into a state of great excitement owing to a most extraordinary rise and fall of the water in the harbour…
The Christchurch city council says today's flooding would have been much worse had it not been for post-earthquake upgrades to the storm water system.
Shows an earthquake assessor at the door of a family home. The whole family is wearing snorkles and goggles. Context: Possibly refers to claims being made by owners of leaky homes as well as earthquake victims. Colour and black and white versions available Quantity: 2 digital cartoon(s).
The Maori King has called a national hui for iwi and hapu to discuss water rights after the government refused to call one; A member of the Iwi Chairs Forum says it might be time for the Maori Council to step aside from the water rights debate; The Whanganui River Maori Trust Board says it's satisfied with how its Treaty of Waitangi negotiations with the Crown are progressing, saying the Government's taking into account the iwi's unique circumstances; A Maori broadcaster who was living in Christchurch during many of the earthquakes says she tried hard to put whanau at ease while she was on-air, but admits it was tough remaining calm during the many aftershocks.
The Maori King has called a national hui for iwi and hapu to discuss water rights after the government refused to call one; A member of the Iwi Chairs Forum says it might be time for the Maori Council to step aside from the water rights debate; The Whanganui River Maori Trust Board says it's satisfied with how its Treaty of Waitangi negotiations with the Crown are progressing, saying the Government's taking into account the iwi's unique circumstances; A Maori broadcaster who was living in Christchurch during many of the earthquakes says she tried hard to put whanau at ease while she was on-air, but admits it was tough remaining calm during the many aftershocks.
Site of SCIRT, an alliance between CERA, Christchurch City Council, the NZTA, and companies involved in the rebuild. Includes information about SCIRT; news; works notices; and information about damage assessment and rebuilding of roads, fresh water, wastewater and stormwater networks.
A drain grating and surround sit on top of a broken curb. The photographer comments, "You can see that the drain cover no longer fits, but there is a metal surrounding that also has to be placed in first".
Pipes lead into a shipping container. The photographer comments, "In Christchurch containers are so very versatile: They are used as barricades, supports, homes, shops, art galleries, artworks, Malls, pubs and bars, Thai takeaways and now sewage works".
An emerging water crisis is on the horizon and is poised to converge with several other impending problems in the 21st century. Future uncertainties such as climate change, peak oil and peak water are shifting the international focus from a business as usual approach to an emphasis on sustainable and resilient strategies that better meet these challenges. Cities are being reimagined in new ways that take a multidisciplinary approach, decompartmentalising functions and exploring ways in which urban systems can share resources and operate more like natural organisms. This study tested the landscape design implications of wastewater wetlands in the urban environment and evaluated their contribution to environmental sustainability, urban resilience and social development. Black and grey water streams were the central focus of this study and two types of wastewater wetlands, tidal flow (staged planning) and horizontal subsurface flow wetlands were tested through design investigations in the earthquake-affected city of Christchurch, New Zealand. These investigations found that the large area requirements of wastewater wetlands can be mitigated through landscape designs that enhance a matrix of open spaces and corridors in the city. Wastewater wetlands when combined with other urban and rural services such as food production, energy generation and irrigation can aid in making communities more resilient. Landscape theory suggests that the design of wastewater wetlands must meet cultural thresholds of beauty and that the inclusion of waste and ecologies in creatively designed landscapes can deepen our emotional connection to nature and ourselves.
A review of the week's news, including... A Government decision not to back a national hui on water rights is dismissed as irrelevant by its organisers and do precedent setting legal cases involving large settlements such as the Sealords Fisheries deal apply in this case of fresh water?, scores of jobs are being axed at the Tiwai Point Aluminum Smelter, opposition parties and unions are continuing to pound the Government with criticism about it's jobs creation record and the Government's response from the Finance Minister, the country's medical laboratories are being called on to make urgent changes after biopsy sample mix-ups which led to four women having breasts removed when they didn't have cancer, it's two years since a magnitude 7.1 earthquake shook Canterbury, children take antibiotics after the frightening death of a 12 year Wellington girl from meningococcal disease and a statue of Christ is returning from the wilderness, as a twelve-year mystery surrounding its fate is solved.
A UN report warns today that the world is running out of time to make sure there is enough food, water and energy, The Government says residents forced to sell up and leave their earthquake-damaged houses in the red zones of Christchurch can't expect to be told when their former homes will be demolished. A big story in the current Atlantic Monthly concludes, after looking at many studies, that cellphone use isn't harmful to your brain.
With the land dropping about 1metre to 1.4metres after the earthquakes, a few roads besides the Avon and Heathcote Rivers are flooded with very high tides. Extra stop banks (on right) erected after the quakes have helped, but the road is now well below high water level. New Brighton Road, just short of New Brighton. The Pages Road bridge may b...
A digitally manipulated image of two chairs sitting among rubble. The photographer comments, "There is a strip of land that has been declared as the red zone. This means that the houses facing towards the tidal estuary must be abandoned as they are on land that has been declared uneconomic to repair after the Christchurch earthquakes. These chairs are at the front of one of these properties that will be bulldozed. These seem to be saying come hell or high water we will not be moved".
The Government's decision to only talk to iwi and hapu with interests in water which is used by Mighty River Power is supported by a member of the Iwi Chairs Forum; A constitutional Advisory Panel member, Professor Ranginui Walker, says many Maori are worried the Treaty could one day be forgotten; A Christchurch woman says she's still overwhelmed by the aroha and support shown, not only by Maori organisations, but also the general public, since the first earthquake hit Canterbury two years ago today; An Auckland hapu which has recently settled its Treaty claim with the Crown is planning to create new educational opportunities for young Maori.
A member of the Iwi Chairs Forum says right now iwi and hapu with interests in water that is used by Mighty River Power should talk directly with the government; A constitutional Advisory Panel member, Professor Ranginui Walker, says many Maori are worried the Treaty of Waitangi could one day be forgotten; A former Christchurch woman says she's still overwhelmed by the aroha and support shown, not only by Maori organisations, but also the general public, since the first earthquake hit Canterbury two years ago today; An Auckland hapu which has recently settled its Treaty of Waitangi claim with the Crown is planning to create new educational opportunities for young Maori; An Auckland hapu which has recently settled its Treaty of Waitangi claim with the Crown is planning to create new educational opportunities for young Maori.
The Avon and Heathcote Rivers, located in the city of Christchurch, New Zealand, are lowland spring-fed rivers linked with the Christchurch Groundwater System. At present, the flow paths and recharge sources to the Christchurch Groundwater System are not fully understood. Study of both the Avon and Heathcote Rivers can provide greater insight into this system. In addition, during the period 2010-2012, Christchurch has experienced large amounts of seismic activity, including a devastating Mw 6.2 aftershock on February 22nd, 2011, which caused widespread damage and loss of life. Associated with these earthquakes was the release of large amounts of water through liquefaction and temporary springs throughout the city. This provided a unique opportunity to study groundwater surface water interactions following a large scale seismic event. Presented herein is the first major geochemical study on the Avon and Heathcote Rivers and the hydrological impact of the February 22, 2011 Christchurch Earthquake. The Avon, Heathcote, and Waimakariri Rivers were sampled in quarterly periods starting in July 2011 and analyzed for stable Isotopes δ¹⁸O, δD, and δ¹³C and major anion composition. In addition, post -earthquake samples were collected over the days immediately following the February 22, 2011 earthquake and analyzed for stable isotopes δ¹⁸O and δD and major anion composition. A variety of analytical methods were used identify the source of the waters in the Avon-Heathcote System and evaluate the effectiveness of stable isotopes as geochemical tracers in the Christchurch Groundwater System. The results of this thesis found that the waters from the Avon and Heathcote Rivers are geochemically the same, originating from groundwater, and exhibit a strong tidal influence within 5km of the Avon-Heathcote Estuary. The surface waters released following the February 22nd, 2011 earthquake were indistinguishable from quarterly samples taken from the Avon and Heathcote Rivers when comparing stable isotopic composition. The anion data suggests the waters released following the February 22nd, 2011 Christchurch Earthquake were sourced primarily from shallow groundwater, and also suggests a presence of urban sewage at some sites. Attempts to estimate recharge sources for the Avon-Heathcote Rivers using published models for the Christchurch Groundwater System yielded results that were not consistent between models. In evaluating the use of geochemical constituents as tracers in the Christchurch Groundwater System, no one isotope could provide a clear resolution, but when used in conjunction, δ¹⁸O, δ¹³C, and DIC, seem to be the most effective tracers. Sample sizes for δ¹³C were too small for a robust evaluation. Variability on the Waimakariri River appears to be greater than previously estimated, which could have significant impacts on geochemical models for the Christchurch Groundwater System. This research demonstrates the value of using multiple geochemical constituents to enrich our understanding of the groundwater surfaces-water interactions and the Christchurch Groundwater System as a whole.
The 22 February 2011, Mw6.2 Christchurch earthquake is the most costly earthquake to affect New Zealand, causing an estimated 181 fatalities and severely damaging thousands of residential and commercial buildings. This paper presents a summary of some of the observations made by the NSF-sponsored GEER Team regarding the geotechnical/geologic aspects of this earthquake. The Team focused on documenting the occurrence and severity of liquefaction and lateral spreading, performance of building and bridge foundations, buried pipelines and levees, and significant rockfalls and landslides. Liquefaction was pervasive and caused extensive damage to residential properties, water and wastewater networks, high-rise buildings, and bridges. Entire neighborhoods subsided, resulting in flooding that caused further damage. Additionally, liquefaction and lateral spreading resulted in damage to bridges and to stretches of levees along the Waimakariri and Kaiapoi Rivers. Rockfalls and landslides in the Port Hills damaged several homes and caused several fatalities.
The devastating magnitude M6.3 earthquake, that struck the city of Christchurch at 12:51pm on Tuesday 22 February 2011, caused widespread damage to the lifeline systems. Following the event, the Natural Hazard Research Platform (NHRP) of New Zealand funded a short-term project “Recovery of Lifelines” aiming to: 1) coordinate the provision of information to meet lifeline short-term needs; and to 2) facilitate the accessibility to lifelines of best practice engineering details, along with hazards and vulnerability information already available from the local and international scientific community. This paper aims to briefly summarise the management of the recovery process for the most affected lifelines systems, including the electric system, the road, gas, and the water and wastewater networks. Further than this, the paper intends to discuss successes and issues encountered by the “Recovery of Lifelines” NHRP project in supporting lifelines utilities.
A review of the week's news, including... Maori across the country accepting a challenge set by the Maori King to battle the Government over water rights, the Government says Labour's new education policies are flawed, expensive and unnecessary while it's being accused of exploiting the Christchurch earthquakes to force through sweeping changes to schools in the city, Tuhoe is to get 170-million dollars in compensation and more control over Te Urewera National Park in its settlement with the Crown for historical grievances, hundreds of angry and stunned paper mill workers in Kawerau are in limbo over how many will lose their jobs with Norske Skog announcing its halving production, the shotputter Valerie Adams will receive her gold medal in a public ceremony in Auckland on Wednesday, details from of the police investigation into John Bank's mayoral campaign donations have been made public, a man who helped his chronically ill wife commit suicide has broken down in tears after being discharged without conviction and Invercargill has rolled out the red carpet in style, hosting the world premiere of New Zealand's latest feature film.
Following the 22 February 2011, MW 6.2 earthquake located on a fault beneath the Port Hills of Christchurch, fissuring of up to several hundred metres in length was observed in the loess and loess-colluvium of foot-slope positions in north-facing valleys of the Port Hills. The fissuring was observed in all major valleys, occurred at similar low altitudes, showing a contour-parallel orientation and often accompanied by both lateral compression/extension features and spring formation in the valley floor below. Fissuring locations studied in depth included Bowenvale Valley, Hillsborough Valley, Huntlywood Terrace–Lucas Lane, Bridle Path Road, and Maffeys Road–La Costa Lane. Investigations into loess soil, its properties and mannerisms, as well as international examples of its failure were undertaken, including study of the Loess Plateau of China, the Teton Dam, and palaeo-fissuring on Banks Peninsula. These investigations lead to the conclusion that loess has the propensity to fail, often due to the infiltration of water, the presence of which can lead to its instantaneous disaggregation. Literature study and laboratory analysis of Port Hills loess concluded that is has the ability to be stable in steep, sub-vertical escarpments, and often has a sub-vertically jointed internal structure and has a peak shear strength when dry. Values for cohesion, c (kPa) and the internal friction angle, ϕ (degrees) of Port Hills loess were established. The c values for the 40 Rapaki Road, 3 Glenview Terrace loess samples were 13.4 kPa and 19.7 kPa, respectively. The corresponding ϕ values were thought unusually high, at 42.0° and 43.4°.The analysed loess behaved very plastically, with little or no peak strength visible in the plots as the test went almost directly to residual strength. A geophysics resistivity survey showed an area of low resistivity which likely corresponds to a zone of saturated clayey loess/loess colluvium, indicating a high water table in the area. This is consistent with the appearances of local springs which are located towards the northern end of each distinct section of fissure trace and chemical analysis shows that they are sourced from the Port Hills volcanics. Port Hills fissuring may be sub-divided into three categories, Category A, Category B, and Category C, each characterised by distinctive features of the fissures. Category A includes fissures which display evidence of, spring formation, tunnel-gullying, and lateral spreading-like behaviour or quasi-toppling. These fissures are several metres down-slope of the loess-bedrock interface, and are in valleys containing a loess-colluvium fill. Category B fissures are in wider valleys than those in Category A, and the valleys contain estuarine silty sediments which liquefied during the earthquake. Category C fissures occurred at higher elevations than the fissures in the preceding categories, being almost coincident with bedrock outcropping. It is believed that the mechanism responsible for causing the fissuring is a complex combination of three mechanisms: the trampoline effect, bedrock fracturing, and lateral spreading. These three mechanisms can be applied in varying degrees to each of the fissuring sites in categories A, B, and C, in order to provide explanation for the observations made at each. Toppling failure can describe the soil movement as a consequence of the a three causative mechanisms, and provides insight into the movement of the loess. Intra-loess water coursing and tunnel gullying is thought to have encouraged and exacerbated the fissuring, while not being the driving force per se. Incipient landsliding is considered to be the least likely of the possible fissuring interpretations.
A worried Hekia Parata, Minister of Education, tells John Key, the Prime Minister, that schools in Canterbury are resisting being merged. John Key replies that the government will go through a 'consultation process' and then 'do what we like'. However the schools are claiming marae status and thus protection under the Treaty of Waitangi. The 'Hui report' which the Prime Minister is holding confirms this fear. The Ministry of Education, given the excuse of the Canterbury earthquakes, announced that many schools there will be merged or closed. Threatened schools, particularly the two Maori language schools, lodged complaints with the Waitangi Tribunal. 'Hui reports' refers to the claims and resulting hui over the water rights of the proposed partial privatisation of state assets. Colour and black and white versions available Quantity: 2 digital cartoon(s).