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Ohio Administrative Code (Last Updated: January 12, 2021) |
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1501:21 Division of Soil and Water Resources - Dam Safety |
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Chapter1501:21-13. Classification and Design of Dams, Dikes, and Levees |
1501:21-13-13. Freeboard requirements for levees
Latest version.
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(A) For levees in class I, the minimum elevations of the top of the levee shall be at least three feet higher than the maximum adjacent water surface elevations during passage of the design flood. The chief may approve a lower freeboard requirement with acceptable documentation.
(B) For levees in class II , the minimum elevations of the top of the levee shall be two feet higher than the maximum adjacent water surface elevations during passage of the design flood.
(C) Where special conditions of severe frost damage, ice damage, stream obstruction, wave action, or impact of other structures may occur, the chief may require elevations higher than required in paragraph (A) of this rule.