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Evaluation of existing systems for the long-term measurement of bridge deflections

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Complete with results
Geo-spatial type
Project website
Project Acronym
STRIA Roadmaps
Infrastructure (INF)
Transport mode
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Transport sectors
Passenger transport,
Freight transport


Background & Policy context

The project has the purpose to inventorise, classify and evaluate existing methods for the long-term monitoring of bridge deflections. The result will be summarized in a report allowing a rational approach to the selection of measurement methods applicable to a given application.
Classical measurement methods (topometry, hydrostatic leveling) will be considered along with more recent developments, as for example methods based on inclinometers or optical fibers. The pros and cons of each method will be exposed in relationship with typical applications. Case studies of representative monitoring configurations will be included.


The main objective of the project is identification, classification and evaluation of measurement methods applicable for the long term monitoring of bridge deflections.


The following steps will take place:

  • Literature research
  • Collection of further information from the companies which are active in the field of measurement
  • Case studies


Parent Programmes
Institution Type
Public institution
Institution Name
Swiss Government: State Secretariat for Education and Research
Type of funding
Public (national/regional/local)


The final report provides guidance to the master of the works to better define its monitoring needs, to formalize its requirements and identify measurement methods potentially applicable to a particular work. The case studies further have a more precise idea of the magnitude of costs and effort associated with a given case.

Final report reference:

EPFL, IS-BETON, O. Burdet, A. Muttoni: Evaluation des systèmes existants pour le suivi à long terme des déformations des ponts / Beurteilung bestehender Messsysteme für die Langzeiterfassun der Verformungen von Brücken / Evaluation of existing measurement systems for the long-term monitoring of bridge deflections. Mandat de recherche AGB2003/017 effectué à la demande du groupe de travail Recherches en matière de ponts (AGB). December 2006


Lead Organisation
EU Contribution
Partner Organisations
EU Contribution


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