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Flood hazard

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Issue

Flood hazard

An increased flood hazard because the flood defence does not meet the requirements and/or due to extreme conditions.

The safety of the dike along the river Maas upstream from Waspik is insufficient for the future. The river can be dangerous for 's-Hertogenbosch and other cities and villages along the river during high water.

Solution

River enlargement

River enlargement means the river is given more space when high water occurs. The dike of the river Bersche Maas at the Overdiepse Polder at Waspik is lowered, this allows river water to flow into the polder during high water. This induces a water level decline of 27 cm on site and approx. 10 cm at 's-Hertogenbosch. Because of this, cities and villages upstream from the polder are safer. The most important functions of inhabitation, working, agriculture and animal husbandry in the polder remain preserved due to a "mounds plan".

Pros

  • No nuisance upstream during high water.
  • The agricultural and economical value of the area is preserved.
  • Residents supported the project because it allowed them to expand their businesses, due to the removal of agricultural companies which could not be placed on a mound.

Characteristics

  1. Topic Water safety
  2. Development state 10: Proven in operational situation
  3. Setting type Agricultural area
  4. Water type Surface water
  5. Project period More than 7 years