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#levee system #flood defense #embankment #river engineering #water containment #dike

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#push back water #water containment #block flow #block placement #physical stop

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#dam #levee #reservoir wall #water containment #retaining wall #hydro structure

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#arch dam #curved structure #dam engineering #water containment #dam wall

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#flood prevention #water containment #stop flood #water barrier #dike