Construction work, intended to protect the city of Caen against the Orne river’s flooding, includes:
- a 450 m long canal, intended to divert the Orne river’s flow rate of 400 m3/s in the ship canal, thanks to a control structure and to four 14.25 m wide radial gates that enable a normal water depth of 3.50 m
- a spillway –located between the ship canal and the Orne estuary–, dedicated to releasing the diverted flow and equipped with two 10.00 m wide radial gates, used to maintain the retention height at 3.50 m
- enlargement work on the Orne riverbed around Caen’s bridge
- a set of cofferdams, all equipped with a lifting system
- the automation of an already-existing radial gate
- a local control room equipped with a PC and a secure connection, to monitor all the structures.
setec tpi carried out the design and supervision of civil engineering work and hydromechanical systems.
Client: Joint Union for the Fight against the Flooding of the Orne river and its watershed
Design & Construction PM JV: Hydratec + setec TPI + Terrasol + BIEF + Dénicourt & Dubois
Contractors: Quille, Mastelotto, Paimboeuf
Cost of construction: 19M€ excluding taxes
Duration: 2001 – 2003