“one of the largest protected river areas in Europe”

Environmental Impact Study for the New Bridge over Ticino River

Location

Piemonte (Italy)

Implementation period

2007 – on going

Value of works

€ 17,5 M

Client

Novara province

Services provided

Preliminary, Final & Construction Design, Environmental Impact Study, Safety Coordination during Design and Execution phase, Detailed Hydraulic Study.

Description

This project is configured as a variant road in addition to the current SP 527 national road and includes  a new bridge over the Ticino river in order to replace the existing one that is no longer adequate to the requirements of the new road. The specificity of the site, a context of great environmental and  landscape value which stands in one of the largest river protected areas in Europe (recognized as a “Biosphere Reserve” by UNESCO and part of the “Natura 2000” network ) has required a particular relevance of the design and studies aimed at the acquisition of the necessary environmental permits.

Due to the presence of the regional Lombardy and Piedmont Ticino Valley parks, the activity is in fact subjected to an interregional procedure of Environmental Impact Assessment. To this end, the project is accompanied by an Environmental Impact Assessment including an Environmental Impact Study (due to the presence of the areas “Natura 2000” areas).

The study is divided into three classic frameworks (programmatic planning and environmental). The project explores the relations with the planning framework and the constraints system and reports the analysis useful for the characterization of various environmental components (air, water environment, soil and subsoil, vegetation, flora fauna and ecosystems, noise, landscape) in the pre-construction, during construction and post-construction phases. The study then develops the analysis of alternatives routes and the design of mitigation and compensation measures: natural restoration of the site area, green aeras, riverbank protections with bioengineering techniques, collection tanks for accidental spills, outcrop basin for first flush rainwater, morphological restoration of the riverbed). As a compensatory measure, the project ultimately foresees the forestation of an extensive grassland in such way to create a forest system similar to the “mixed riparian formations of large rivers”, the natural habitats described as Site of Community Importance by the 92/43 / EEC Directive.

In accordance with the art. 95 of the Italian Law D.Lgs 163/2006, the activities necessary for the preventive verification procedure of the  archaeological importance (including bibliographical and documentary investigation, archaeological survey and photo interpretation) were also carried out.

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