The community shall review all permit applications to determine whether proposed building sites will be reasonably safe from flooding and assure that all necessary permits have been received from those governmental agencies whose approval is required by federal or state law.
A. 
If a proposed building site is in a flood-prone area, all new construction and substantial improvements:
(1) 
Shall be designed and anchored to prevent flotation, collapse, or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy;
(2) 
Shall be constructed with flood-resistant materials;
(3) 
Shall be constructed by methods and practices that minimize flood damages; and
(4) 
Mechanical and utility equipment must be elevated to or above the flood protection elevation.
B. 
If a subdivision or other proposed new development is in a flood-prone area, the community shall assure that:
(1) 
Such proposed subdivision or other proposed new development is consistent with the need to minimize flood damage within the flood-prone area;
(2) 
Public utilities and facilities, such as sewer, gas, electrical, and water systems, are located and constructed to minimize or eliminate flood damage; and
(3) 
Adequate drainage is provided to reduce exposure to flood hazards.
C. 
All subdivision proposals (including manufactured home parks) shall include regional flood elevation and floodway data for any development that meets the subdivision definition of this chapter and all other requirements in § 256-23B.
A. 
No floodplain development shall:
(1) 
Obstruct flow, defined as development which blocks the conveyance of floodwaters by itself or with other development, causing any increase in the regional flood height; or
(2) 
Cause any increase in the regional flood height due to floodplain storage area lost.
B. 
The Zoning Administrator shall deny permits if it is determined the proposed development will obstruct flow or cause any increase in the regional flood height, based on the officially adopted FIRM or other adopted map, unless the provisions of Article VIII, Amendments, are met.
A. 
No land use permit to alter or relocate a watercourse in a mapped floodplain shall be issued until the local official has notified, in writing, all adjacent municipalities, the Department and FEMA regional offices, and required the applicant to secure all necessary state and federal permits. The standards of § 256-7 must be met and the flood-carrying capacity of any altered or relocated watercourse shall be maintained.
B. 
As soon as is practicable, but not later than six months after the date of the watercourse alteration or relocation and pursuant to Article VIII, Amendments, the community shall apply for a letter of map revision (LOMR) from FEMA. Any such alterations must be reviewed and approved by FEMA and the DNR through the LOMC process.
Development which requires a permit from the Department under Wis. Stats. Chs. 30 and 31, such as docks, piers, wharves, bridges, culverts, dams, and navigational aids, may be allowed if the necessary permits are obtained and amendments to the Floodplain Zoning Ordinance are made according to Article VIII, Amendments.
Public or private campgrounds shall have a low flood damage potential and shall meet the following provisions:
A. 
The campground is approved by the Department of Agriculture, Trade and Consumer Protection;
B. 
A land use permit for the campground is issued by the Zoning Administrator;
C. 
The character of the river system and the campground elevation are such that a seventy-two-hour warning of an impending flood can be given to all campground occupants;
D. 
There is an adequate flood warning procedure for the campground that offers the minimum notice required under this section to all persons in the campground. This procedure shall include a written agreement between the campground owner, the floodplain zoning agency or Zoning Administrator, the municipal emergency government coordinator and the chief law enforcement official which specifies the flood elevation at which evacuation shall occur, personnel responsible for monitoring flood elevations, types of warning systems to be used and the procedures for notifying at-risk parties, and the methods and personnel responsible for conducting the evacuation;
E. 
This agreement shall be for no more than one calendar year, at which time the agreement shall be reviewed and updated, by the officials identified in Subsection D, to remain in compliance with all applicable regulations, including those of the State Department of Agriculture, Trade and Consumer Protection and all other applicable regulations;
F. 
Mobile recreational vehicles.
(1) 
All mobile recreational vehicles placed on-site must meet one of the following:
(a) 
Be fully licensed, if required, and ready for highway use; or
(b) 
Not occupy any site in the campground for more than 180 consecutive days, at which time the recreational vehicle must be removed from the floodplain for a minimum of 24 hours; or
(c) 
Meet the requirements in either Articles III or IV or § 256-18 for the floodplain district in which the structure is located;
(2) 
A mobile recreational vehicle is ready for highway use if it is on its wheels or jacking system, is attached to the site only by quick-disconnect utilities and security devices and has no permanently attached additions.
G. 
All camping units that remain on-site for more than 30 days shall be issued a limited authorization by the campground operator, a written copy of which is kept on file at the campground. Such authorization shall allow placement of a camping unit consistent with § 256-10F and shall ensure compliance with all the provisions of this section;
H. 
The municipality shall monitor the limited authorizations issued by the campground operator to assure compliance with the terms of this section;
I. 
The campground shall have signs clearly posted at all entrances warning of the flood hazard and the procedures for evacuation when a flood warning is issued;
J. 
All service facilities, including but not limited to refuse collection, electrical service, gas lines, propane tanks, sewage systems and wells shall be properly anchored and placed at or floodproofed to the flood protection elevation;
K. 
Standards for structures in a campground.
(1) 
All structures must comply with § 256-10 or meet the applicable requirements in Article III or IV or § 256-18 for the floodplain district in which the structure is located;
(2) 
Deck/landing. A portable landing may be allowed for a camping unit for each entry provided that the landing is not permanently attached to the ground or camping unit, is no more than 200 square feet in size, shall be portable, contain no walls or roof, and can be removed from the campground by a truck and/or trailer. Sections of such portable landings may be placed together to form a single deck not greater than 200 square feet at one entry point. Provisions for the removal of these temporary landings during flood events must be addressed within the written agreement with the municipality compliant with § 256-100. Any such deck/landing structure may be constructed at elevations lower than the flood protection elevation but must not obstruct flow of floodwaters or cause any increase in flood levels during the occurrence of the regional flood.
(3) 
Decks/patios that are constructed completely at grade may be allowed but must also comply with applicable shoreland zoning standards.
(4) 
Camping equipment and appurtenant equipment in the campground may be allowed provided that the equipment is not permanently attached to the ground or camping unit, is not used as a habitable structure, and must not obstruct flow of floodwaters or cause any increase in flood levels during the occurrence of the regional flood. Provisions for the removal of this equipment during flooding events shall be addressed within the written agreement with the municipality compliant with § 256-10D.
(5) 
Once a flood warning in the written agreement has been issued for the campground, the campground owner or the designated operator shall ensure that all persons, camping units, decks, camping equipment and appurtenant equipment in the campground shall be evacuated within the timelines specified within the written agreement with the municipality compliant with § 256-10D;
L. 
A land use permit shall be obtained as provided under § 256-23B before any development; repair, modification, or addition to an existing structure; or change in the use of a building or structure, including sewer and water facilities, may be initiated.