Conference / Meeting

Flood hazard, mitigation works and residual risks: how can we manage changes over time?

9 October 2023
10 October 2023
Start time 
10:30 am
Sala della Cooperazione Trento (Italy) - via Segantini 10
Provincia autonoma di Trento, University of Trento, University of Padova and CNR
Target audience: 
Free – Registration required
Registration deadline: 
2 October 2023, 23:59
Contact person: 
Dott. Lorena Galante
0461 882660


Torrential risk protection works have a long tradition in Trentino, as well as in the Alps in general, where these measures have allowed more intensive use of the landscape since the twentieth century and form the basis for rational management of the risk of torrential floods. At present, thousands of protective works of different ages and conditions characterize the watercourses of the Province. The maintenance and management of protective works make it possible to control their inevitable deterioration and to extend their life.

The discussion about the future of these works requires a multidimensional evaluation, which concerns not only the structural and maintenance aspects of the single work but it must also the integrated risk management, including residual risk. Today, in fact, protection systems must respond to needs that have changed over time and be flexible towards the uncertainties also linked to climate change. The focus is no longer on purely structural measures, but on an optimal combination of planning-organizational activities and on adequate individual and collection behaviors during flood events.

The meeting aims to frame these problems from an interdisciplinary perspective during the first day with talks by international experts, while on the second day, ongoing experiences in different Italian regional administrations in the Alpine region will be compared.


 9 October

Results of the project “Improving flood hazard governance strategies following the October 29, 2018 event in the Rotiano Torrent” and international contributions

09:30 - 10:00 Registration

10:00 - 10:20 Greetings of the Authorities and opening of the workshop

10:20 - 12:30 Presentation of the results of the Project “Improving flood hazard governance strategies following the October 29, 2018 event on the Rotiano torrent”

Lorenzo Malpaga - Autonomous Province of Trento, Italy
Improving flood hazard governance strategies following the October 29, 2018 event on the Rotiano torrent
Marco Borga - University of Padova, Italy
Hydro-meteorology of the October 29, 2018 flood event, accounting for climate change
Giorgio Rosatti - University of Trento, Italy
The Rio Rotiano event and its challenges to the mathematical and numerical modelling of debris flow phenomena
Lorenzo Marchi - National Research Council, Italy
From the Rio Rotiano to the regional scale: Identifying and managing protection structures at risk

12:30 - 13:30 Lunch break (free lunch)

13:30 - 15:00 The components of a changing risk

Guillaume Piton - INRAE, France
Torrent control with check dams: historical evolution in France
Eva Gertsch - BAFU, Switzerland
Dealing with aging protection systems in torrents - case studies and guidelines for practice in Switzerland
Gian Battista Bischetti - University of Milano, Italy
Inspection, functionality assessment and maintenance strategy for torrent control structures

15:00 - 15:20 Coffee break

15:20 - 17:00

Sven Fuchs - BOKU, Austria
Vulnerability of elements at risk - assessment approaches from an Austrian perspective
Elena Mondino - Credit Switzerland, Switzerland
Changes in flood risk perception and implications for disaster risk reduction
Sandro Raimondi - Public prosecutor attorney of Trento
Flood events: possible judicial implications

10 October

National experiences and experiences of Italian Alpine Regions

09:00 - 09:30 Registration

09:40 - 10:00 Greetings of the Authorities

10:10 - 10:20 National experience

Martina Bussettini - ISPRA
Integration of structural and non-structural risk mitigation measures

10:20 - 11:10 Technical experiences of the Italian Alpine Regions

Fabio Di Bernardo - Autonomous Region Friuli Venezia Giulia
Fabio Da Re - Region Veneto
Fabio De Polo - Autonomous Province of Bolzano

11:10 - 11:30 Coffee break

11:40 - 13:00 Technical experiences of the Italian Alpine Regions

Fabio Mandozzi - Region Lombardia
Antonia Impedovo - Region Piemonte
Paolo Ropele - Autonomous Region Valle d’Aosta
Stefano Fait - Autonomous Province of Trento

13:00 - 14:00 Lunch break (free lunch)

14:00 - 14:40 Recent experiences

Andrea Lazzaroni - Mayor of Dimaro (Italy)
The Dimaro case (October 2018)
Alberto Bellin - University of Trento (Italy)
The Marmolada case (July 2022)

14:40 - 16:00 ROUNDTABLE DISCUSSION (moderator Raffaele De Col - Autonomous Province of Trento)


Participation in the conference is free and registration is required.


The conference will be accredited by the Professional Associations of Agronomists and Foresters, Geologists and Engineers


A translation service Italian/English will be available for participants during the workshop


Sala della Cooperazione, Trento (Italy) - via Segantini 10


PAT Servizio Bacini Montani CNRUniversità degli Studi di Padova

With the patronage of the Professional Associations


Carte della pericolosità per fenomeni alluvionali della città di Trento
Rio Merdar, Opera di consolidamento - Pergine Valsugana (TN)
Rio Rotian, Briglia di trattenuta - Dimaro (TN)
Rio Rotian, Colata detritica - Dimaro (TN)
Rio Rotian, Colata detritica 2 - Dimaro (TN)
Rio Rotian, Opera di consolidamento danneggiata - Dimaro (TN)
Rio Secco, Opera di consolidamento - Besenello (TN)
Torrente Noce, Piena del 03.10.2020 - Pellizzano (TN)
Val San Valentino, Opere danneggiate evento 03.10.2020 - Porte Rendena (TN)
Fiume Sarca, Esondazione evento 03.10.2020 - Dro (TN)