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The Pont Rolland dam (22) – France

The Pont Rolland dam (22) – France

Dams and hydraulic Engineering  (Dams and dykes)

  • Client: DREAL Bretagne
  • Assignment: study of hazards
  • Completion date: 2014-2015
  • Total cost of the assignment: 20 k €

PROJECT DESCRIPTION AND CHARACTERISTICS

The Pont Rolland dam is located in the bay of Morieux (Côtes d’Armor) on the river “Le Gouessant” about twenty kilometers east of the town of St Brieuc. Shellfish farms are located downstream of the dam.

The main characteristics of the dam are the following:

  • Reinforced concrete vaulting dam;
  • peak length: 102.60 m;
  • height on foundation: 22,20 m (16,50 m above natural ground level);
  • 60 m spillway capable of evacuating a flow of 200 m³/s;
  • Wagon type bottom valve: capacity: 31 m³/s.

ASSIGNMENT

  • Risk Study
  • Study of propagation of rupture wave
Skills

Posted on

2016-09-27