Forme de radoub EN

Napoleon dry dock

Situated in the western part of the outer harbour, between the Caligny wharf and the hardstanding leading to Place Napoleon, the dry dock has a volume of 8,000 m3 and is 80 m long, 20 m wide and almost 7 m deep. Cut directly out of the rock to 4 m below sea level, the dock is separated from the sea by a double metal gate to ensure watertightness. Its sloping side walls and bottom slab are made of schist while the facings, shelves and channels are in granite.

Characteristics

• Usable length: 71.26 m
• Length on blocks (keel blocks): 67 m
• Breadth of entrance: 14 m
• Usable breadth between fenders: 13.18 m
• Allowable draught: sill at +0.78 chart datum, keel blocks at +1.17 chart datum