Ohio Administrative Code › Title 1501:21 - Division of Soil and Water Resources - Dam Safety › Chapter 1501:21-5 - Application Procedures › Section 1501:21-5-02 - Preliminary design report

Current through all regulations passed and filed through July 1, 2024
(A) For
			 class I and II levees and for dams, the preliminary design report shall
			 include:
(1) A general description of the dam
			 or levee and all appurtenances thereto, and the proposed classification of the
			 structure as set forth in rule
			 1501:21-13-01 or
			 1501:21-13-09 of the
			 Administrative Code. The description is to
									 include a statement of the purpose
			 for which the dam or levee is to be used, and a statement setting forth the
			 impact of such dam or levee as it relates to endangering human life, health, or
			 property upstream, downstream or adjacent to the dam or levee.
(2) For dams, maps showing:
(a) The ownership of all property, in whole
			 or in part, that would be inundated by the reservoir up to and including the
			 elevation of the top of the dam and the ownership of the property upon which
			 the dam is located;
(b) The
			 location of the proposed structure; the county, township, and section
			 lines;
(c) The outline of the
			 reservoir at its primary spillway elevation and its maximum pool;
(d) Topographic contours of the lake area up
			 through the top of dam elevation to verify storage volumes;
(e) The locations of state, county, and
			 township roads; the locations of utilities, i.e., pipe, transmission, and
			 telephone lines;
(f) The location
			 and elevation of any other structure or facility affected by the proposed dam
			 or levee.
State, county, and U.S.G.S. maps, and aerial photographs may be
				accepted for these purposes
(3) For levees, maps showing:
(a) The ownership of all property, in whole
			 or in part, that would be protected and the ownership of the property upon
			 which the levee is located;
(b) The
			 location of the proposed structure; the county, township, and section
			 lines;
(c) The locations of state,
			 county, and township roads; the locations of utilities, i.e., pipe,
			 transmission, and telephone lines;
(d) The location of any other structure or
			 facility affected by the proposed levee; and,
(e) Basement and first floor elevations of
			 all structures potentially affected by the levee 
										as deemed
			 necessary
										 by the chief.
State, county, and U.S.G.S. maps, and aerial photographs may be
				accepted for these purposes.
(4) A written report of the surficial
			 conditions, i.e., geology, topography, and cultural features, which includes a
			 field reconnaissance by the applicant's engineer. Logs of borings in the
			 foundation and in the borrow areas, and results of seismic and resistivity
			 subsurface investigations, when they are readily available.
(5) Typical cross-sections of the dam or
			 levee accurately showing proposed elevations, slopes, pool levels, and top
			 width.
(6) Preliminary design
			 assumptions, tentative conclusions, and references. The design assumptions
			 are to
									
			 pertain to such hydrologic and hydraulic parameters as drainage area, rainfall
			 and runoff data, inflow hydrographs, area-capacity- elevation data, and flood
			 routings, in addition to geologic and geotechnical engineering
			 assumptions.
(7) A description of
			 how the streamflow will be diverted around or through the dam site, or
			 otherwise kept from interfering with the work;
(8) Other pertinent information as may be
			 needed
									 by the chief.