The governing body may change or supplement the floodplain zoning
district boundaries and this chapter in the manner provided by law.
A.
Actions which require an amendment include, but are not limited to,
the following:
(1)
Any
change to the Official Floodplain Zoning Map, including the floodway
line or boundary of any floodplain area.
(2)
Correction
of discrepancies between the water surface profiles and Floodplain
Zoning Maps.
(3)
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.
(4)
Any
fill or floodplain encroachment that obstructs flow, increasing regional
flood height 0.01 foot or more.
(5)
Any
upgrade to a floodplain zoning ordinance text required by § NR
116.05, Wis. Adm. Code, or otherwise required by law, or for changes
by the municipality.
B.
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. [Note: Consult the FEMA website, www.fema.gov, for the map
change fee schedule.]
Ordinance amendments 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 §§ 724-31 and 724-36B.
A.
The proposed amendment shall be referred to the Plan Commission for
a public hearing and recommendation to the governing body. The amendment
and notice of public hearing shall be submitted to the Department
regional office, and to the Milwaukee Metropolitan Sewerage District,
for review prior to the hearing. The amendment procedure shall comply
with the provisions of § 62.23, Wis. Stats.
[Amended 4-12-2011 by Ord. No. 2011-06[1]]
B.
No amendments shall become effective until reviewed and approved
by the Department.
C.
All persons petitioning for a map amendment that obstructs flow,
increasing regional flood height 0.01 foot or more, 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.
