rn57 - repair of the Rigole de Bouzey in Saint-Nabord The aim is to carry out repair work on the OA 067 PI structure which allows the RN 57 to cross the supply canal of the Rigole de Bouzey in Saint-Nabord (88). The structure consists of two precast concrete frames. The work must ensure the durability of the structure and give it a lifespan of more than 50 years

the benefits fall under category 2 within the meaning of Article R.4532-1 of the French Labor Code. They concern the repair work of the OA 067 PI structure which allows the Rn57 to cross the Bouzey Reservoir Supply Canal (Carb). The structure consists of two precast concrete frames