Natural intervention

Groups: 
  • Design Projects
Category: 
  • Ecology and Surface Water

Basic

Requirements and Criteria Type: 
  • Technical Specification (Requirement Specifications)

Main Objective: 

Interventions in the natural environment impact biodiversity and the ecological value of an area. In the event of major changes, species or habitats may disappear altogether.

In order to reduce environmental stress on construction sites, unnecessary terrain interventions must be avoided wherever possible, and the execution of construction work should be planned so as to minimise the impact on the area.

Requirement Specification: 

The construction work must be planned in a way that minimises interventions in the natural environment and terrain during the execution phase.

If it is necessary to protect existing vegetation and other natural environments, land protection plans must be prepared which set out limits for intervention, zones requiring special consideration for the conservation of vegetation, and the natural basis at the construction site.

Documentation of the Requirement Specification: 

The size and complexity of the facility will determine the level of detail in the plan and the cartographic basis, but the land protection plan should include::

  • the plan’s delimitation
  • new and old terrain with contours (not just as a cross-section)
  • location of buildings and garages, including heights of bases
  • road installations with dimensioned regulated width, paved width and heights at intersections
  • ditch alignments for water, sewerage and cables, as well as the locations of manholes and conduit dimensions
  • cable installations and transformers
  • routes for floodwaters and streams in flood
  • areas to be protected by fencing, as well as requirements concerning such fencing
  • compound areas, storage areas and landfill disposal sites for stones and soil
  • limit of preserved terrain
  • fill and cutting zones
  • blasting or demolition zones where natural land cannot be preserved
  • walls and terrain terraces
  • preserved vegetation
  • areas for intermediate storage/disposal of agricultural soil
  • addition of any preserved boulders and similar

Information about the Requirement Specification: 

‘Important habitat types’ means that the site is considered to be very important (A), important (B) or locally important (C) for biodiversity, according to the Norwegian Environment Agency's Handbook 13, Mapping of habitat types - Valuation of biodiversity, Norwegian Environment Agency

The land protection plan describes in detail the organisation and measures for the preservation of vegetation and natural basis on a construction site. The operator is responsible for ensuring that the land protection plan is established, followed and checked. Any breaches of the plan should result in the imposition of sanctions, such as fines.

If the area is subject to an investigation obligation, stresses on the following must be evaluated:

  • species diversity
  • protected nature
  • important habitat types, including marine habitats (in projects where relevant)
  • ecological function of the landscape
  • fauna (big game, small game, birdlife, reptiles etc.)
  • water bodies
  • peripheral vegetation
  • zones requiring special consideration

This will result in provisions for the specific area which are to be continued in the project. If there is no investigation obligation, it may still be appropriate to submit requirements regarding the natural environment.

Compensatory measures are seen as a last resort in order to avoid the adverse effects of interventions in the natural environment. These are more comprehensive measures than the mitigating measures which minimise adverse impacts during project execution. Consideration should first be given to preventing, limiting or restoring the site/environment.

Advanced

Requirements and Criteria Type: 
  • Technical Specification (Requirement Specifications)

Main Objective: 

Interventions in the natural environment impact biodiversity and the ecological value of an area. In the event of major changes, species or habitats may disappear altogether.

In order to reduce environmental stress on construction sites, unnecessary terrain interventions must be avoided wherever possible, and the execution of construction work should be planned so as to minimise the impact on the area.

Requirement Specification: 

The construction work must be planned in a way which minimises interventions in the natural environment and terrain during the execution phase, and protects existing vegetation insofar as is possible. Emphasis must be placed on reducing the area affected by the intervention.

If it is necessary to protect existing vegetation and other natural environments, land protection plans must be prepared which set out limits for intervention, zones requiring special consideration for the conservation of vegetation, and the natural basis at the construction site.

Cuttings, fill areas and other affected areas/facilities must be designed so that they are compatible with the surrounding terrain/ area. Terrain interventions must be designed so as to minimise their permanent visual and environmental impacts.

Documentation of the Requirement Specification: 

The size and complexity of the facility will determine the level of detail in the plan and the cartographic basis, but the land protection plan should include::

  • the plan’s delimitation
  • new and old terrain with contours (not just as a cross-section)
  • location of buildings and garages, including heights of bases
  • road installations with dimensioned regulated width, paved width and heights at intersections
  • ditch alignments for water, sewerage and cables, as well as the locations of manholes and conduit dimensions
  • cable installations and transformers
  • routes for floodwaters and streams in flood
  • areas to be protected by fencing, as well as requirements concerning such fencing
  • compound areas, storage areas and landfill disposal sites for stones and soil
  • limit of preserved terrain
  • fill and cutting zones
  • blasting or demolition zones where natural land cannot be preserved
  • walls and terrain terraces
  • preserved vegetation
  • areas for intermediate storage/disposal of agricultural soil
  • addition of any preserved boulders and similar

Information about the Requirement Specification: 

‘Important habitat types’ means that the site is considered to be very important (A), important (B) or locally important (C) for biodiversity, according to the Norwegian Environment Agency's Handbook 13, Mapping of habitat types - Valuation of biodiversity, Norwegian Environment Agency

The land protection plan describes in detail the organisation and measures for the preservation of vegetation and natural basis on a construction site. The operator is responsible for ensuring that the land protection plan is established, followed and checked. Any breaches of the plan should result in the imposition of sanctions, such as fines.

If the area is subject to an investigation obligation, stresses on the following must be evaluated:

  • species diversity
  • protected nature
  • important habitat types, including marine habitats (in projects where relevant)
  • ecological function of the landscape
  • fauna (big game, small game, birdlife, reptiles etc.)
  • water bodies
  • peripheral vegetation
  • zones requiring special consideration

This will result in provisions for the specific area which are to be continued in the project. If there is no investigation obligation, it may still be appropriate to submit requirements regarding the natural environment.

Compensatory measures are seen as a last resort in order to avoid the adverse effects of interventions in the natural environment. These are more comprehensive measures than the mitigating measures which minimise adverse impacts during project execution. Consideration should first be given to preventing, limiting or restoring the site/environment.

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Published: 25. Nov 2020, Last modified: 26. Nov 2020