Location: Hamburg, Germany
City population: 1,698,688
Project duration: 2012 - ongoing
Project cost: Above 4 000 000 EUR
Financing source(s): Public national budget, Public local authority's budget, Corporate investment

Covering the A7 highway

Hamburger Deckel, A7

The aim of the project was to extend and cover the south-north highway (A7) that connects Germany to the Scandinavian country with a green roof. The highway had divided neighborhoods from each other and had had negative environmental effects like noise and air pollution. The new green roof will have three parts that connect the existing green surfaces to each other (Reference 1, 3).

Urban setting

  • Grey infrastructure with green features
    • Other
  • Parks and (semi)natural urban green areas
    • Green corridor
  • Allotments and community gardens
    • Allotments
  • Green areas for water management
    • Sustainable urban drainage systems

Key challenges

  • Climate action for adaptation, resilience and mitigation (SDG 13)
  • Environmental quality, including air quality and waste management
  • Green space, habitats and biodiversity (SDG 15)
  • Health and well-being (SDG 3)
  • Regeneration, land-use and urban development
  • Water management (SDG 6)

Main beneficiaries

  • National-level government
  • Local government/Municipality
  • Citizens or community groups
Project objectives
- noise protection - better air quality - implementing a green recreational area - creating new allotment gardens along the new tunnel - implementation of meadows and pathways - connecting the currently divided neighborhoods to each other (Reference 1, 2, 3)
Implementation activities
- the first two sections are under construction and will be implemented in 2018 and in 2020 - the third section is in the planning phase (Reference 3)

Type of initiating organisation

  • Local government / municipality

Management set-up

Government-led

Participatory approaches/ community involvement

  • Dissemination of information and education
  • Consultation (e.g. workshop, surveys)
Details on the roles of the organisations involved in the project
The large-scale project is to be carried out by the Hamburg Ministry of Urban Development and Environment (Behörde für Stadtentwicklung und Umwelt, BSU) and the Hamburg Ministry of Economy, Transport and Innovation (Behörde für Wirtschaft, Verkehr und Innovation, BWVI) together with the Federal Ministry of Transport, Building and Urban Affairs (Bundesministerium für Verkehr, Bau und Stadtentwicklung) and other partners, including the DEGES. Most of the work is financed by the federal government. The Free and Hanseatic City of Hamburg is contributing to the construction cost of the additional cover sections and their design" (Reference 6).
Project implemented in response to ...
... an EU policy or strategy? Yes
In 2011, Hamburg was chosen to be the Green Capital of the EU (Reference 4). This programme aims to promote and award commitment and innovation to resolve environmental challenges in cities (Reference 5). The covering of the highway is in line with the green strategy that the Green Capital Award projected and it is mentioned in the selective report of the city ("Hamburg: European Green Capital: Five years on") being published in 2016 (Reference 4).
... a national policy or strategy? Unknown
... a local policy or strategy? Yes
The project appears in the city's urban development strategy being published in 2014 (Hamburg 2030) for a green, inclusive and growing city (Reference 7).
Expected impacts
  • Climate action for adaptation, resilience and mitigation (SDG 13)
  • Environmental quality, including air quality and waste management
  • Green space, habitats and biodiversity (SDG 15)
  • Health and well-being (SDG 3)
  • Regeneration, land-use and urban development
Details on impacts and indicators used - noise protection db(A) - air quality (amount of NO2 in the air, PM10, PM2.5) - length of the covered sections (equal to the length of interconnectedness of neighborhoods) (Reference 2)

Presence of formal monitoring system

Unknown

Presence of indicators used in reporting

Unknown

Presence of monitoring/ evaluation reports

Unknown

Availability of a web-based monitoring tool

Unknown
  • Green Ribbon from Elbe to Volkspark - Hamburg-Altona Highway District Cover (2017)
    Green Ribbon from Elbe to Volkspark - Hamburg-Altona Highway District Cover (2017)
    License: 
    LRW Architekten und Stadtplaner/BSW, retrieved 08/22/2018 from Anna Pilatz

 

Disclaimer: The data collection was carried out between June and August 2017, the information presented has not been updated afterwards.