Viaduc de Martrou, Road bridge in Rochefort, France.
The Viaduc de Martrou is a road bridge that crosses the Charente River between Rochefort and Échillais. It allows vehicle traffic to flow continuously in both directions across the waterway.
Construction of this prestressed concrete bridge began in 1989 and was completed in 1991. It replaced a vertical lift bridge that had previously served the river crossing.
This infrastructure enhancement modified regional transportation patterns by establishing a permanent connection between Rochefort and the routes leading to Royan and Île d'Oléron.
The bridge has been toll-free for vehicle traffic since 2004 and connects both riverbanks without fees. The crossing provides a wide roadway that offers sufficient space in both directions.
The structure represents a significant engineering achievement, incorporating both shallow foundations and drilled piles to ensure stability in the maritime environment.
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