[Amended by Res. No. 46-2013]
(1) No modification or addition shall be allowed to any legal pre-existing
structure or any structure with a legal pre-existing use in the Floodway
District, unless such modification or addition:
(a)
Has been granted a permit or variance which meets all ordinance
requirements;
(b)
Meets the requirements of § 6.1;
(c)
Shall not increase the obstruction to flood flows or regional
flood height;
(d)
Any addition to the existing structure shall be floodproofed,
pursuant to § 7.5, by means other than the use of fill,
to the flood protection elevation; and
(e)
If any part of the foundation below the flood protection elevation
is enclosed, the following standards shall apply:
1.
The enclosed area shall be designed by a registered architect
or engineer to allow for the efficient entry and exit of floodwaters
without human intervention. A minimum of two openings must be provided
with a minimum net area of at least one square inch for every one
square foot of the enclosed area. The lowest part of the opening can
be no more than 12 inches above the adjacent grade;
2.
The parts of the foundation located below the flood protection
elevation must be constructed of flood-resistant materials;
3.
Mechanical and utility equipment must be elevated or floodproofed
to or above the flood protection elevation; and
4.
The use must be limited to parking, building access or limited
storage.
(2) No new POWTS, or addition to an existing POWTS, except where an addition has been ordered by a government agency to correct a hazard to public health, shall be allowed in the Floodway District. Any replacement, repair or maintenance of an existing POWTS in a floodway area shall meet the applicable requirements of Chapter
13, The Oneida County Private Onsite Wastewater Treatment System Ordinance (POWTS) and DSPS 383, Wis. Adm. Code.
(3) No new well or modification to an existing well used to obtain potable
water shall be allowed in the Floodway District. Any replacement,
repair or maintenance of an existing well in the Floodway District
shall meet the applicable requirements of all municipal ordinances
and Chs. NR 811 and NR 812, Wis. Adm. Code.