Christchurch Rising – Landscape Driven City
Following on from the 2015 X-Section article Reimagining a City: 21st Century Landscape Architecture and the paper given by Mike Thomas at the 2015 6th Liveable Cities Conference titled Reimagining Christchurch City’s Post-Quake Public Realm: The Influence of 21st Century Landscape Architecture on the Rebuild, Mike posited that it is the work of landscape architects that will most consistently influence the appearance and social and economic success of Christchurch’s new post-quake public realm in the rebuild. The following is a brief update on progress.
Christchurch is unique in New Zealand. Following the 2011 earthquake, it has started over. 70% of CBD buildings have needed demolition, services under the street have needed reconstruction and the city is now in a slow-but-steady state of rebuild.
A positive outlook of a city ‘beginning again’ has been the opportunity for the government to engage with the city and put in place an infrastructure rebuild using principles defined by its people. Cantabrians have asked for a green, walking, cycling city with public transport.
City planning has zoned the CBD into ‘Frames’ according to the activity of the district (e.g. innovation, health). A focus has been applied to developing the public realm and streetscape and so landscape architecture is playing a dominant role in shaping the character of the city centre – an evolutionary shift not a wholesale changeover.
This South Frame project consists of 20,000m2 of mid-block lanes and plazas across seven city blocks on major arterial routes in the city (Tuam/St Asaph and Madras/Antigua Streets). It’s part of a wider ‘Accessible City’ project which consists of 75,000 m2 of streetscapes containing 250 new street trees and 4,000m2 of rain gardens, developed by a consortium of Jasmax, AECOM and LandLAB. South Frame’s construction began in 2016 and is now approximately 20% complete with work now proceeding at full pace.
A 12 metre-wide, 700 metre long, heavily planted Greenway collects, slows and treats storm water runoff with almost 3,000m2 of rain gardens. Designed as a setting for a creative new mixed-use precinct, connecting the Innovation and Health Precincts, the Greenway is a canvas for cultural expression in partnership with Ngāi Tahu; the local Māori tribe. A theme of this greenway is a “Story of Stone”, which features backlit pounamu (Jade/greenstone) pavement inlays, basalt laneways and boulders. The Greenway will be a venue for social activation and a safe movement corridor, particularly attractive to inner-city living and working.
The layout for the Greenway owes much to Canterbury’s beautiful braided rivers, pixelated to align with urban geometry. Local tree species, Kahikatea and totara, will rise above the buildings as future sentinels to help navigate the city centre. Ethno-botanical plantings with historical value to Ngāi Tahu will be planted, with identification tags.
Separated cycle-lanes and shared surfaces will enable safe cycling through the city, and connect to a regional cycleway network, the Peloton. Architecturally iconic Super Stops (for buses) are being fabricated, ready to play their part in a three-fold increase (by 2041) of public transport movements.
Construction of these projects is in full swing with a significant portion built by 2018.
By Mike Thomas, Principal, Jasmax