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Fond du Lac County, WI Environmental Rules: Boat Dock Permits (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Permit-exempt use
Piers/docks/walkways built on pilings
Condition
Only limited excavating and filling allowed
General rule
Permit required for new shoreland development
District
Shoreland-wetland district (unincorporated)
Enforcement
Zoning administrator; forfeitures and injunctions

Summary

Building or maintaining a pier, dock, or walkway on pilings within the shoreland-wetland district of unincorporated Fond du Lac County doesn't require a county land use permit under Code § 44-53(2)e, so long as the work involves only limited excavating and filling.

These county ordinances apply to unincorporated areas of Fond du Lac County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(2)Uses which do not require the issuance of a permit and which may include limited filling, flooding, draining, dredging, ditching, tiling, or excavating but only to the extent specifically provided below: ... e.The construction or maintenance of piers, docks or walkways built on pilings, including limited excavating and filling necessary for such construction and maintenance; ... (a)When required. Except where another section of this chapter specifically exempts certain types of development from this requirement, a permit shall be obtained from the zoning administrator or board of adjustment/committee before any new development.

Full Breakdown

" Other uses on the same permit-exempt list include pasturing livestock, cultivating agricultural crops, maintaining fences, and repairing existing town and county highways; anything involving more than limited filling, flooding, draining, dredging, ditching, tiling, or excavating falls outside the exemption and needs the § 44-352 permit process, or, if not listed anywhere in § 44-53, is flatly prohibited under § 44-54 unless the property is rezoned. Dock construction on pilings in the shoreland-wetland district is also still subject to Wis. chs. 30 and 31, the state waterway permit statutes this same permitted-uses section cross-references, so a builder clears the county's own permit requirement but may still owe the state Department of Natural Resources its own approval for work below the ordinary high-water mark.

Violations & Fines

Exceeding the limited excavating and filling § 44-53(2)e allows, or building a dock or other structure outside the shoreland-wetland district's permitted-uses list, is enforced by the zoning administrator, who under § 44-351(9) sets "appropriate penalties for violations of various provisions of the chapter, including forfeitures," with compliance also enforceable by injunction under Wis. Stats. § 59.69(11) to prevent or abate a violation.

Frequently Asked Questions

Do I need a county permit to build a dock on my Fond du Lac County shoreland property?
Not if it's within the shoreland-wetland district and limited to a pier, dock, or walkway built on pilings. § 44-53(2)e exempts that specific work from the county's general land-use permit requirement, provided any excavating or filling stays limited to what's necessary for construction and maintenance.
What development in shoreland areas does require a county permit?
Section 44-352(a) requires a land use permit from the zoning administrator or board of adjustment before any new development in the shoreland zoning district, unless another section, like § 44-53(2)'s exempt-use list, specifically excuses it.
Does a permit-exempt dock still need state approval?
Yes. The county's own permitted-uses section cross-references Wis. Stats. chs. 30 and 31, the state waterway permit statutes, so clearing the county exemption doesn't remove any separate approval the Wisconsin DNR requires for work below the ordinary high-water mark.

Sources & Official References

Other rules in Fond du Lac County

All Fond du Lac County rules

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