Terre Blanche, like all natural vegetation, was exposed to the risk of fire during the construction phase and until the final technical and human resources were in place, which could destroy the site for decades.
A fire brigade was set up with self-propelled means to fight any outbreak of fire, whether natural or man-made.
Terre Blanche is exposed to the risk of flooding, due to stormy rainfall capable of ruining the golf courses, or even damaging the infrastructures, but also due to the overflowing of the Riou Blanc which crosses Terre Blanche and exposes the neighbouring golf courses to erosion and ruin of the fairways in ten-year or one hundred-year floods.
The infrastructures for collecting run-off water have been calibrated to respond to the instantaneous inflow from the roads (waterproofing, therefore no infiltration) with the creation of numerous skimming basins scattered in the areas requiring regulation of the volumes of water released into the environment.
The gullies, which are ornamental structures, also have a function of collecting run-off water and, as such, are built of reinforced concrete and erosion-resistant waterproofing.
These gullies also have, through their successive reaches, an energy dissipating role to reduce the speed of water flow.
The Riou Blanc is maintained, in the sector where Terre Blanche has full ownership on a half bank or on both banks, by removing materials and plants that could reduce the bed used for runoff.
The perimeter fences, particularly at the level of fairways 1 and 2 of the Riou, are designed to be folded down so as not to obstruct the flow of water from the Riou Blanc when it leaves its bed during a ten-year flood.
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