Flood protection

Isar River had been regulated at the end of the 19th century by forcing the river into a canal-type bed with embankments. This regulation made a negative impact on the flow velocity of the river, on its temperature balance, and increased the risk of flooding. The goal of the recent development was to restore the river's natural character on an 8-kilometre-long section of the river and to create a semi-natural riverside. (Reference 1, 2) This was considered especially important because the effects of climate change have already increased the frequency of heavy rain events and major floods. (Reference 3) The new concept leaves space for the river to shape and change its bed with every flood. Further aims of the project were to increase biodiversity and recreational quality.

Hailes Quarry Park (HQP) is a large open space in the south-west of Edinburgh. It covers an area of 12.15ha. HQP was a very boggy area in the centre of the park which was effectively out of use. A project was planned which aimed to make environmental improvements and engage the local community and encourage healthy living. One of the main features of the park’s recent development is the creation of a wetland area with a range of wetland plant species. This new habitat will be home to birds, amphibians and native wetland plants, and will be a part of the green corridor. Additionally, a Biodiversity enhancement project was carried out at the site (ref 1, 7).

In 2016 the Municipality of Lisbon started the renovation of the Botanical Garden of Lisbon, declared in 2010 as a national heritage monument. The botanical garden is both a vital urban open space and a significant cultural landscape of the city. This Botanical Garden is home to an important collection of plants with economic value, reflecting the strong links to the Portuguese expansion and the routes of the navigators that spread them across the various continents. The intervention is expected to provide improvements in the irrigation and water circulation systems, in the rainwater harvesting system, in the reorganization and improvement of garden green spaces, and in the restoration of paths. With the objective of requalifying the space, bringing significant improvements in terms of sustainability of resources, visitors safety, new cultural and recreational opportunity spaces (Ref. 3, 4, 8).

This area of Keighley is drained by a combined sewer system operated by Yorkshire Water. The natural drainage system is poorly defined.
During extreme rainfall, water from the park and adjacent housing flows down the hill and into the surrounding area and causes flooding. Storage in the form of SuDS was provided in Devonshire Park using a series of “trench trough” structures. These take the form of depressions (swales) with gently sloping sides (ref. 1). Extensive flooding in 2008 and 2012, the local resilience group has been working tirelessly to reduce flooding in Devonshire Park areas (ref 4). Up to £170m of this has been brought forward to accelerate work on ‘shovel-ready’ flood defence schemes to begin construction in 2020 or 2021. The Keighley and Ilkley constituency are one of the beneficiaries, with improvements set to be made to Natural Flood Management aspect of the Leeds Flood Alleviation Scheme, providing an immediate boost to jobs supporting the local economy (ref 4).

Due to the frequent episodes of flooding, the city of Bari has started thinking about becoming a laboratory where experimenting a new landscape approach, with the additional benefit of enhancing daily liveability. New green spaces have been built within housing areas (apartments that the municipality provides for those who have low income). (Ref.1&2) The aim of Garden Faber was to create a community garden, designed and made by residents for residents (Ref.1.) As of July 2020, no sources were available to understand if the community continued with the garden.

A five-year project, would be the largest sustainable water drainage system project to be implemented in Glasgow. The investment follows years of study by the Metropolitan Glasgow Strategic Drainage Partnership, which includes Scottish Water, the Scottish Environment Protection Agency and Glasgow City Council. (Ref 1)

The Seven Lochs Wetland Park is an urban park that is due to be created in Scotland. It will comprise nearly 20 km² of land and water between Glasgow and Coatbridge. The park will combine many existing features, including four local nature reserves; Bishop Loch, Cardowan Moss, Commonhead Moss (a raised bog) and Hogganfield Park; Drumpellier Country Park which includes Woodend Loch SSSI and Lochend Loch; Frankfield Loch; Johnston Loch; Garnqueen Loch; Provan Hall a 15th-century category A listed building. It will be Scotland's largest urban heritage and nature park. The vision for the Seven Lochs Wetland Park is of a new park of national significance, sustaining and enhancing a high quality, innovative wetland environment that will (a) protect and enhance biodiversity and heritage (b) promote health and well-being (c) contribute to environmental, economic and social regeneration (Ref 1).

The project started in 2013, when a group of private companies started a collaboration with the municipality of Bari to build a series of gardens on the top of households roofs in the city. With a total extension of 2000 sqm for the experiment, the main goal is to create a small micro-climate. The main advantages of this experiment is an improvement in the process of absorption of rain and to reduce energetic costs for heating. The green roofs are expected to play a role in facing the challenges posed by climate change. (Ref.1.)

The Humberhead Peatlands are the UK's largest lowland raised bog complex and are part of the Natura 2000 network. They are located East of Doncaster and include the Thorne Moors and the Hatfield Moors (both towns are part of the Doncaster Borough). Commercial peat extraction has changed the hydraulic balance of the area, which impacts the condition of the peatland. This project aims to restore the water balance and thereby the peatland that can help prevent flooding, which is a breeding ground for the European nightjar, while also creating local jobs. The Humberhead Peatlands LIFE+ project completed its delivery phase in June 2019. (Ref 2, 3)

The project was part of a series of development projects which addressed the water management issues of the city. (Reference 1) The rehabilitation of a lake in the Adyváros neighbourhood included the renewal of the water reservoir, surrounding green areas, footpaths, and vegetation, as well as the installation of a new street light system, benches, trash cans, and unique street installations such as an interactive message board. (Reference 2) The interventions transformed the lake and its surroundings into a popular recreational area, frequented by locals. Since the completion of the project in 2014, there have been minor developments to the lake and its area, such as the renovation of the playground. (Reference 4) Apart from Adyváros, several other lakes were rehabilitated in several neighbourhoods (Adyváros, Győr-Szabadhegy, Marcalváros). (Reference 6)