Breakwater monitoring and maintenance
A monitoring system is used to measure sediment accretion, and to monitor the condition of the breakwater fences. In addition, natural regeneration of mangroves is monitored. During the first year after construction, functionality of the breakwater fences should be ensured through monthly visual inspections and maintenance where necessary. After one year, visual inspections and maintenance should be carried out at least after the end of every storm season. In addition, seasonal GPS surveys of the shore line at low tide can be used to see whether the breakwater fences have impacts on the shape of the coastline nearby. The natural regeneration of mangroves is documented by recording species, size and density or through fixed-point photos. The latter can also be used as a simple alternative for GPS shore line surveys.
• Know-how and manpower for regular surveys (data collection for monitoring) and routine visual construction inspections • Benchmark poles for recording vertical accretion at several transects • Fixed point photos are an easy to use tool to monitor mangrove regeneration and shoreline changes • Measurements of sediment consolidation (mud-density) • GPS survey equipment and know-how for long-term surveillance
A standardized monitoring system for the condition of breakwaters, accretion of sediments and natural regeneration of mangroves is crucial for measuring the long-term success of breakwater fences. The need for maintenance and repair works may vary considerably between sites. Long-term surveillance based on GPS surveys must include neighbouring areas to discover possible negative side effects of breakwater fences (down drift erosion). It is important to realize that once floodplains are restored and an appropriate mangrove cover is in place, mangrove protection measures must be implemented to ensure sustainability of coastal protection. Once the mangrove forest is fully established, the breakwater construction is no longer needed. This process may take several years.
Sharing risk/responsibility in a Public Private Partnership
Public Private Partnerships (PPP) enable public administrations to share the tasks and risks of planning, realization and operation together with private partners in joint projects. Accordingly, the Hernals District Development Commission decided to promote the façade greening measure in the framework of "Public Private Partnership" models. With the expertise of the Viennese Environmental Protection Department - MA 22 - and the support of the district as well as the local area, a remarkable green oasis was created in the form of a green façade at a private house in the Ortliebgasse. The collaboration has proved equally valuable for the project and the public and private partners involved.
The most important success factor was the cooperation of the actors. The costs for the planning and construction were shared by the district and the environmental department MA 22 and the private owner, who is responsible for the maintenance. The agreement was based on an informal contract between the private owner and the district.
The fulfillment of public tasks is traditionally assigned to public administrations, making it challenging to break from this historically ingrained model. The diverse requirements of modern societies however, show that a strict separation between the public and private sectors is no longer feasible. New approaches such as Public Private Partnerships (PPP) show that it is quite advantageous for selected projects to share the tasks and risks of planning, realization and operation together with private partners. While offering many benefits, it should be noted that the planning and administrative efforts of coordinating a PPP are relatively high. These can, however, be simplified with experience and even save costs and resources in the longer term.
Instructional guideline for supporting façade greening
The guideline for façade greening was prepared by the Austrian Association for Building Construction and by the University for Soil Culture on behalf of ÖkoKauf Wien, the program for the ecological procurement of the city of Vienna. The guide was presented in February 2013 within the framework of a conference in the Vienna University of Technology. It offers valuable specialist information to architects, planners, developers, public institutions, as well as interested citizens and serves as a decision-making aid when choosing the ideal type of greenery for different facades. Contents include general information (e.g. target groups, scope, definitions, advantages of a green façade), as well as information on various facade greening systems, their ecological and technical functions and design possibilities. A system overview, funding options and a checklist serve to help users prepare and plan façade greening by examining the necessary conditions and prerequisites. Finally, the guideline highlights best practice examples from the Vienna area and further references to literature and regulations.
It was necessary to draw on the various facets of appropriate knowledge to develop the guide, including e.g. engineers and an association for greening buildings. Financial resources for the content creation, print and publication were planned in the annual project budget from the environmental department – MA22. There were no additional funds. The drafting of the guide was politically desired and was integrated into the political program.
There was a high demand for the guide - the first edition (3000 copies) was already out of print within the first year after publication. A new edition will be published in early 2017, which will be complemented with additional shorter information brochures (folders, leaflets, etc.).
Estimating benefits to make the case for investment
An elaborate ecosystem services assessment helped build the case for investment in an integrated urban river restoration, highlighting benefits relating to water, land, social and climate change issues. Assessed over 40 years, the lifetime benefits of the restoration activities were estimated at €31.2 million – a benefit-to-cost ratio of 7:1. This value-based approach to urban green infrastructure demonstrated that the restoration of the park was a cost-effective way of improving the wellbeing of the local community, particularly as compares to a purely ‘hard engineering’ solution which tends to maximise single services (flood risk etc), while generally having unintended consequences for a range of other interconnected services. The assessment and accompanying report were key in convincing funders to contribute to this project, illustrating how the combination of knowledge, data and resources can enable different sectors to successfully deliver large projects and provide a wide range of benefits far beyond what a single organisation could afford to fund alone.
An Ecosystem Services Assessment was conducted. The involvement of the Environment Agency as a partner helped in the process of securing the numerous approvals needed (flood risk, contaminated land, soil disposal etc.) to successfully conduct the assessment and gather the needed data. This cooperation lead to a quantified estimate of benefits from all of the proposed restoration work prior to implementation, as well as an analysis post-implementation.
It remains difficult to monitor and quantify the benefits of ecosystem services, especially supporting services such as nutrient cycling and habitat for wildlife. Nevertheless, it is crucial in evaluating ecosystem services to consider and – to the extent possible - quantify all service categories (provisioning, regulatory, cultural and supporting). In the case of Mayesbrook, the assessment found that more than 88 percent of the total ecosystem service benefits assessed for the park were benefits to health (such as improving air quality), risk (such as reducing potential flood damage) and cultural value (such as providing opportunities for education). Thus, by creating a thriving, multifunctional landscape and combining social and environmental regeneration goals, the Mayesbrook Climate Change Park demonstrates how an urban river park restoration can successfully deliver public, private and voluntary sector objectives simultaneously – a key factor in making the investment case.
Maximizing social benefits and acceptance through engagement
Prior to the restoration, Mayesbrook Park was unloved and underused. For the project to be a success, it was thus important to reconnect the neighbouring communities with the park and its planned refurbishment. Extensive public consultation helped the partners address local concerns about the park and served to ensure significant social benefits, such as an increased number of visitors in the park, as well as a greater feeling of safety. As the park was home to criminal activities and antisocial behavior prior to reformation, the use of an on-site ranger has helped to reduce this threat and provide greater comfort to visitors and the surrounding communities. In addition, Natural England also worked with the schools to see how the park could be most relevant to their needs and based new natural play facilities and trail markers in the on designs by these children. The improvement in landscape, social and aesthetic value helped shape new recreation facilities and enabled better access for park users.
A public consultation was carried out. The main concerns raised were over security within the park and provision of play facilities and good park maintenance. It was determined that local park visitors wanted the park as a whole to include a balance of sports, play and natural areas, plus toilets, seating and eating areas – and these concerns were integrated in the project design. Equally important has been to help local people understand the natural services provided by the river.
Ongoing consultation has been important in establishing links with the wider community, and the integration of their concerns in the restoration plan has served to validate their involvement. By linking up the local council’s environmental health officers and Thames Water’s Misconnections Project, which is part of the national Connect Right Campaign, people are also more informed about making sure their home plumbing is not discharging into the Mayes Brook. Lastly, combining social and environmental regeneration goals increased the financial and human resources available from a wider range of sources.
Engaging stakeholders to raise awareness and support
An extensive and iterative process of stakeholder engagement was initiated during the design and execution of this project. The process involved a ‘rolling programme’ of consultation with local residents, representatives from the local school, practitioners, city staff and many others in order to build awareness about the SuDS retrofit, its benefits and costs, and to obtain public perspectives on the desired design. This included regular meetings, community workshops, and informal gatherings at sports and cultural events. The approach became increasingly open and consultative, with approximately one fifth of the tenants in the area having participated in dialogue meetings about the project. Amongst other topics, safety issues related to open water areas (e.g. retention pools) were discussed with residents as well as the potential loss of particular recreational opportunities in the area. In many cases, comments and concerns from stakeholders were taken into account and addressed in redesigned SuDS plans.
Venues for stakeholder exchange and approaches to engaging community members were a component of this project from the initial inception phase onwards. Integrating such considerations into what could be perceived as a controversial project is important for gaining and maintaining community support and avoiding potential opposition.
Providing stakeholders with a forum to express concerns, clarify questions and be involved in the process can be very valuable in gaining public support. Involvement of the residents in the design phase meant that there was little opposition to the project, and resulted in sense of ownership, empowerment and raised awareness among the residents. However, maintaining enthusiasm and engagement from the community outside of structured stakeholder consultation processes proved to be challenging.
Maximizing co-benefits through smart planning
While the core purpose of the project was to address flooding related to an over-utilized combined sewage system, the neighbourhood of Augustenborg was also in a state of socioeconomic decline prior to the urban regeneration project. Thus, the generation of socio-economic benefits became central to the project’s goals, such as improving the livability and aesthetics of the neighborhood, alongside biodiversity objectives. Furthermore, the project is part of a larger regeneration initiative within the neighbourhood of Augustenborg, which is also nested within ambitious sustainability plans for the City of Malmö. More specifically, the ‘Eco-city Augustenborg’ initiative aimed to transform Augustenborg into a socially, ecologically, and economically sustainable settlement. Ultimately, the work has represented a significant transformation of the neighborhood, and has become emblematic of a more pervasive shift towards sustainability. It has also resulted in the development of several businesses in the area of water innovation. Media coverage and public relations value are viewed as being additional benefs to the city and its residents.
Forward thinking during the inception and planning phases drew attention to the range of benefits which could potentially be fostered. It was key to first identify these benefits, then engage with local residents, planners, engineers, decision-makers and other stakeholders to develop an integrated approach to ensure their delivery. Ultimately, the SuDS was designed to provide amenity and recreation values to local residents, while also delivering on the primary objective of flood prevention.
Integrating stakeholders into the planning process drew attention to potential foregone recreational uses which would have resulted from the planned measures (i.e. large open fields which were previously used for sports were to be used for retention ponds). These aspects were taken into account following public consultation and ultimately resulted in the creation of new spaces for communal activities and recreation, rather than removing them. The consultation process also resulted in a local innovator designing part of the system and developing a growth business in water innovation, which has since spawned other businesses as well. Furthermore, by providing these added values, the SuDS system wound up ultimately being more cost efficient than a traditional grey infrastructure approach. By regenerating the neighborhood, however, a potential undesired side effect was the increase in property values – which may serve to exclude lower income groups from being able to afford the raised cost
Partnering for success: securing expertise and funding
A partnership between the Malmö housing company, Malmö water and city planners was a critical ingredient in the implementation of this project. Technical expertise was required from each of these partners to ensure appropriate design, and funding of the project was also collaboratively provided. Further components of this successful partnership included stakeholder engagement, the presence of sophisticated technical expertise, and a high level policy directive in support of experimentation. Understanding of the local ecosystems was not critical, but project designers had to possess a very detailed understanding of the frequency and severity of local floods.
Without the partnership between the Malmö water company, housing authority, and others, the funding for this project would not have been sufficient. Significant incentive to fund experimentation and implementation was provided by national and sub-national legislation, while the Green Roof initiative was financed through the EU LIFE programme.
It is key to clearly define the terms of a partnership (both short term and long-term roles) and appoint responsibilities before implementation in order to avoid later confusion and conflict. In the case of ecosystem-based approaches like SuDS in Malmö, it is also key to secure sufficient financing before the project starts to cover the entire duration of the project, including for maintenance and monitoring activities after implementation is completed. Highlighting the potential benefits which will be produced by the project for individual finance providers can be a useful tool in securing funding and increasing support.
Creating a technical advisory panel for sound planning
The project answers to a technical advisory panel (TAP), which meets every six months. This is comprised of a wide range of relevant stakeholders, both directly and indirectly affected by the project. Relevant parties include: Natural England, the Environment Agency (four or five individuals representing each of various arms of the EA that are involved – the environmental permitting team, the land drainage consent team, and the seawall maintenance team), the Crouch Harbour Authority, the local planning authority, Defra, the Essex County Council authorities, the Rochford District Council’s head of planning, Crossrail representatives, the RSPB, individuals from the Centre for Environment, Fisheries, and Aquacultural Sciences (local fisheries advisors), and the Wallasea Island landowner (Wallasea Farms Inc). This panel was a critical source of expertise and analysis during early implementation, and continues to provide advice as the project is completed on potential barriers and means to overcome these.
The existence of the TAP provided an underlying sense of confidence in the planning and implementation process, in order to deal with foreseen barriers. The panel supported extensive modelling, environmental impact assessments, and redesign of solutions. In particular, the design of three smaller managed realignments rather than one large one helped to overcome the problem of scale which was faced in the project.
In a project with such a high chance of technical barriers as in Wallasea Island, a technical advisory panel can be instrumental in a smooth and successful planning and implementation process. The function is essentially to support the identification of both technical and regulatory barriers and development of means to overcome these prior to project implementation.
Fostering win-win solutions through innovative partnerships for landscape engineering
Within the Wallasea Project, land-raising and landscape engineering was innovatively approached by creating a novel public private partnership. Materials from the Crossrail tunneling project were transported to a low-lying coastal area at high risk of flooding, in order to raise the land. The project thus established a precedent for using largely waste material generated by a major infrastructure project to meet biodiversity conservation and climate change adaptation aims elsewhere. Financing stemmed from both the private company Crossrail as well as from the Environment Agency, with all parties profiting due to the economic as well as environmental benefits set off by recycling the leftover materials. With Crossrail on board as a delivery partner, the project represents a partnership between Europe's largest civil engineering project and Europe's largest intertidal habitat creation project.
Instead of paying to remove waste materials from tunnel construction, Crossrail opted to transport them to Wallasea Island. An unloading facility enabled the materials to be shipped and then distributed across the island to build the habitats. Crossrail covered most costs (e.g. land purchase and some staff costs), with the Environment Agency (RA) funding the rest. The EA `bought` into the project to deliver replacement habitats for areas impacted/lost within the local Natura 200 network.
While sufficient buy-in was obtained by RSPB to buy the land, funds had not initially been collected to carry out the project itself. At this point, Crossrail came forward with an offer of materials and funding that permitted the project to move forward with more confidence. The main lesson learned is thus to think ‘outside the box’ and consider novel (public-private) partnerships to tap into previously unconsidered resources, and making sure to highlight the range of benefits which will be delivered to each party as a result of the project. Furthermore, a strong relationship with the landowner was particularly important in the early design phases of the project, as this led to the ability of RSPB to take out a two-year purchase option. This meant that, for a two-year period, RSPB could purchase the majority of the island if they decided to, and the price would be fixed at the beginning of this period, thereby creating some certainty surrounding the initial costs of the project.