Based on the flood level frequency curve, hydrological failure risk was divided into flood overflowing risk and flood overtopping risk.

基于推求的洪水位频率曲线，将堤防水文失事风险分为洪水漫溢风险和洪水漫顶风险。

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Yorkshire Water claims the station at Kingswood would provide five-times the level of flood protection for the area.

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In all, 1.1m tonnes of earth and rock were excavated in the construction of the 2010 course, flattening out the harsh gradients of the back nine, and using the aggregate to raise the opening holes above the level of the Usk's flood plain.

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So we're still contending with flood level along the St.

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