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Every engineering structure and especially every bridge faces unavoidable constraints among those a limited weight admissible on the bridge deck which has to be respected during its lifetime. This constraint is then translated by a limited road thickness (without waterproofing) defined by the design of the structure since its conception. Depending on pathologies found during the life time of the structure (flow, excessive constraints…), the operator can also be asked to search for limits of overloads including maintenance works of the road.

Technical leaflet Viapont®

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