Pont de Carouge – Renovation and Rehabilitation

Pont de Carouge – Complete Renovation and Rehabilitation Works

The Pont de Carouge is a historic structure, built in 1812. It holds a special place among stone bridges and represents a significant example of masonry bridge construction techniques.

Over the years, the bridge had suffered damage due to its advanced age and required extensive rehabilitation works.

For several decades, our office monitored the deterioration of the structure and proposed multiple project variants in close consultation with the clients, the architect, heritage associations, and the TPG (public transport authorities).

A solution, which received approval from all stakeholders involved in the bridge’s restoration, was finally validated. The definitive works began in spring 2016 and were completed in spring 2017.

Various tests and analyses were carried out to best adapt the intervention methods to the progressively worsening damage. The works included:

Destructive testing of the cantilevers

Geo-radar inspection

Vibration measurements

Barrier testing

Complete structural analysis of the bridge and barriers

Injection mortar analysis

Masonry injection tests

Additionally, to ensure the bridge remained accessible to cyclists and pedestrians during the works, a temporary 77-meter-long footbridge was constructed, accommodating all forms of non-motorized traffic.