Ohio Administrative Code
Title 1501:21 - Division of Soil and Water Resources - Dam Safety
Chapter 1501:21-13 - Classification and Design of Dams, Dikes, and Levees
Section 1501:21-13-07 - Freeboard requirements for dams
Current through all regulations passed and filed through March 18, 2024
Sufficient freeboard shall be provided to prevent overtopping of the top of the dam due to passage of the design flood and other factors including, but not limited to, ice and wave action. The chief may approve a lower freeboard requirement if the dam is armored against overtopping erosion.
(A) For class I and class II dams that are upground reservoirs, the minimum elevation of the top of the dam shall be at least five feet higher than the elevation of the designed maximum operating pool level unless otherwise approved by the chief.
(B) For class III dams that are upground reservoirs, the minimum elevation of the top of the dam shall be at least three feet higher than the elevation of the designed maximum operating pool level unless otherwise approved by the chief.
Five Year Review (FYR) Dates:
3/7/2018 and
03/06/2023
Promulgated
Under: 119.03
Statutory
Authority: 1521.06
Rule
Amplifies: 1521.06,
1521.061,
1521.062
Prior
Effective Dates: 04/15/1972, 10/15/1981,
01/16/2005