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 Wisconsin Statutes (Last Updated: January 10, 2017)
 Chapter 87. Flood Control

  Section 87.30. Floodplain zoning.  

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    (1)   State powers.
    (a) If any county, city or village does not adopt a reasonable and effective floodplain zoning ordinance within one year after hydraulic and engineering data adequate to formulate the ordinance becomes available, the department shall, upon petition of an interested state agency or a municipality or upon its own motion as soon as practicable and after public hearing, determine and fix by order the limits of any or all floodplains within a county, city or village within which serious damage may occur. Thereafter the department shall as soon as practicable after public hearing adopt a floodplain zoning ordinance applicable to a county, city or village, except that no floodplain zoning ordinance may be enacted unless the hydraulic and engineering studies necessary to determine the floodway or floodplain limits, or both, if both limits are deemed necessary by the department, have been made at state or federal expense. If the department utilizes hydraulic and engineering studies previously completed, the department shall be responsible for ensuring that the studies are reasonable and accurate. Thirty days' notice of all hearings on floodplain determination or zoning before the department shall be given to the county, city or village clerk, the clerks of all towns where lands may be affected and to the department of transportation. Exhibits and testimony shall be a part of the official record. Failure of a county, city or village to adopt a floodplain zoning ordinance for an area where appreciable damage from floods is likely to occur or to adopt an ordinance which will result in a practical minimum of flood damage in an area shall be prima facie proof of the necessity for action specified under this paragraph by the department. The department shall make a decision in writing of insufficiency of any county, city or village floodplain zoning ordinance before adopting an ordinance superseding a county, village or city ordinance. All orders of the department under this subsection which either fix the limits of floodplains or enact local floodplain zoning ordinances shall, when they are in final draft form and before they are issued, be referred to the appropriate committees of the legislature, where the procedure under s. 227.19 shall apply. Section 227.15 does not apply to the orders of the department under this section. Orders of the department under this section shall, after becoming effective, be deemed rules for purposes of s. 227.26 , and may be suspended by the joint committee for review of administrative rules.
    (b) All final orders, determinations or decisions made under this subsection shall be subject to review under ch. 227 and be effective 20 days after the same have been served unless such order, determination and decision specifies a different date upon which the same shall be effective. Such floodplain determination and zoning ordinance shall be of the same effect as if adopted by the county, city or village. Thereafter it is the duty of the county, city, village and town officials to administer and enforce the ordinance in the same manner as if the county, city or village had adopted it. Floodplain determinations and zoning ordinances so adopted may be modified by the county, city or village concerned only with the written consent of the department except that nothing in this subsection may be construed to prohibit a county, city, village or town from adopting a floodplain ordinance more restrictive than that adopted by the state.
    (c) Except as provided under par. (a) , the cost of such floodplain determination and ordinance promulgation and enforcement by the state shall be assessed against the county, city or village concerned and collected in substantially the same manner as other taxes levied by the state.
    (d) For an amendment to a floodplain zoning ordinance that affects an activity that meets all of the requirements under s. 281.165 (2) , (3) (a) , or (4) (a) , the department may not proceed under this subsection, or otherwise review the amendment, to determine whether the ordinance, as amended, is insufficient.
    (1d)   Improvements to nonconforming buildings.
    (a) In this subsection:
    1. “Nonconforming building" has the meaning specified by rule by the department for purposes of floodplain zoning under this section and includes a building with a nonconforming use.
    2. “Nonconforming use" has the meaning specified by rule by the department for purposes of floodplain zoning under this section.
    3. “Nonflood disaster" means a fire or an ice storm, tornado, windstorm, mudslide or other destructive act of nature, but excludes a flood.
    (b) For nonconforming buildings that are damaged or destroyed by a nonflood disaster a floodplain zoning ordinance shall permit the repair, reconstruction or improvement of any such nonconforming building, in order to restore it after the nonflood disaster except as provided in par. (c) .
    (c) A floodplain zoning ordinance may not permit the repair, reconstruction or improvement of a nonconforming building if the nonconforming building, after repair, reconstruction or improvement, will fail to meet one or more of the minimum requirements applicable to such a nonconforming building under 42 USC 4001 to 4129 or under the regulations promulgated thereunder.
    (1g)   Regulation of floodproofed basements. The department may not promulgate any rule or impose any restriction that does any of the following:
    (a) Results in an ordinance or other regulation containing provisions for floodproofed residential basements that are more restrictive than those imposed by the federal emergency management agency.
    (b) Allows the department to deny an exception for such basements if the federal emergency management agency has granted an exception under 44 CFR 60.6 .
    (1m)   Jurisdiction over drainage ditches limited. Notwithstanding any other provision of law or administrative rule promulgated thereunder, a floodplain zoning ordinance required under sub. (1) does not apply to lands adjacent to farm drainage ditches if:
    (a) Such lands are not within the floodplain of a natural navigable stream or river;
    (b) Those parts of the drainage ditches adjacent to these lands were nonnavigable streams before ditching; and
    (c) Such lands are maintained in nonstructural agricultural use.
    (1r)   Land outside of floodplains. This section does not authorize a county to impose a requirement, condition, or restriction on land that is not within any floodplain in the county.
    (2)   Enforcement and penalties.
    (a) Except as provided in par. (b) , every structure, building, fill, or development placed or maintained within any floodplain in violation of a zoning ordinance adopted under this section, or s. 59.69 , 61.35 or 62.23 is a public nuisance and the creation thereof may be enjoined and maintenance thereof may be abated by action at suit of any municipality, the state or any citizen thereof. Any person who places or maintains any structure, building, fill or development within any floodplain in violation of a zoning ordinance adopted under this section, or s. 59.69 , 61.35 or 62.23 may be fined not more than $50 for each offense. Each day during which such violation exists is a separate offense.
    (b) Paragraph (a) does not apply to a structure, building, fill, or development placed or maintained as part of a mining operation covered by a mining permit under s. 295.58 except to the extent that regulation of the placement or maintenance of the structure, building, fill, or development is required for compliance with a floodplain zoning ordinance as provided under s. 295.607 (3) .

Note

Chapter 437, laws of 1977 , which amended par. (a), contained an extensive note explaining the amendment. See the 1977 session law volume. Microsoft Windows NT 6.1.7601 Service Pack 1 Cross-reference: See also ch. NR 116 , Wis. adm. code. Microsoft Windows NT 6.1.7601 Service Pack 1 A flood plain zoning ordinance adopted by the DNR under sub. (1) was a “rule" under s. 227.01. Citizens for Sensible Zoning, Inc. v. DNR, 90 Wis. 2d 804 , 280 N.W.2d 702 (1979). Microsoft Windows NT 6.1.7601 Service Pack 1 The trial court erred when it placed the burden on the department to prove theat the city's ordinance was not reasonable and effective. City of La Crosse v. DNR, 120 Wis. 2d 168 , 353 N.W.2d 68 (Ct. App. 1984). Microsoft Windows NT 6.1.7601 Service Pack 1 An area need not be navigable to be a lakebed. The ordinary high water mark was determinative. State v. Trudeau, 139 Wis. 2d 91 , 408 N.W.2d 337 (1987). Microsoft Windows NT 6.1.7601 Service Pack 1 There is nothing in the DNR's general grant of authority to regulate floodplains that permits the agency to write rules that nullify the discretion over variance decisions that the legislature has specifically committed to local boards of adjustment. To the extent that a DNR rule prohibits county boards of adjustment from granting variances from flood elevation requirements when the proper statutory standards for variances have otherwise been met, it is invalid. State v. Outagamie County Board of Adjustment, 2001 WI 78 , 244 Wis. 2d 613 , 628 N.W.2d 376 , 98-1046 . Microsoft Windows NT 6.1.7601 Service Pack 1 County floodplain zoning ordinances adopted by the department under this section do not need approval of town boards in order to become effective within all unincorporated areas of the county. 62 Atty. Gen. 264. Microsoft Windows NT 6.1.7601 Service Pack 1 The necessity of zoning variance or amendments notice to the Wisconsin department of natural resources under the shoreland zoning and navigable waters protection acts. Whipple, 57 MLR 25. Microsoft Windows NT 6.1.7601 Service Pack 1 The public trust doctrine. 59 MLR 787. Microsoft Windows NT 6.1.7601 Service Pack 1 Floodplain, wetland and shoreland regulation in Wisconsin. Johnson. WBB May 1988. Microsoft Windows NT 6.1.7601 Service Pack 1