The Village Board may change or supplement the boundaries of the floodplain zoning districts and the regulations contained in this chapter in the manner provided by law. Actions which require an amendment include, but are not limited to, the following:
Any change to the Official Floodplain Zoning Map, including the floodway line or boundary of any floodplain area.
Correction of significant discrepancies between the water surface profiles and floodplain zoning maps.
Any fill in the floodplain which raises the elevation of the filled area to a height at or above the flood protection elevation and is contiguous to land lying outside the floodplain.
Any fill or encroachment into the floodplain that will obstruct flow, causing an increase of 0.01 foot or more in regional flood height.
Any upgrading of floodplain zoning ordinances text required by § NR 116.05, Wis. Adm. Code, or otherwise required by law, or for changes by the municipality.
All channel relocations and changes to the Maps to alter floodway lines or to remove an area from the floodway or the flood-fringe that is based on a base flood elevation from a FIRM requires prior approval by FEMA.
Amendments to this chapter may be made upon petition of any interested party according to the provisions of § 62.23, Wis. Stats. Such petitions shall include all necessary data required by §§ 143-19 and 143-24B.
Copies of any amendment proposed shall be referred to the Plan Commission for a public hearing and recommendation to the Village Board. Copies of the proposed amendment and notice of the public hearing shall be submitted to the appropriate regional office of the Department of Natural Resources for review prior to the hearing. The amendment procedure shall comply with the provisions of § 62.23, Wis. Stats.
No amendment to the maps or text of this chapter shall become effective until reviewed and approved by the Department.
All persons petitioning for a map amendment which involves an obstruction to flow causing an increase of 0.01 foot or more in the height of the regional flood shall obtain flooding easements, or other appropriate legal arrangements, from all adversely affected property owners and notify local units of government before the amendment can be approved by the governing body.