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Informational Only: Michigan dock rules vary by water body type and location. Always verify current requirements with EGLE and your local government before starting construction.

Michigan has more than 11,000 inland lakes and over 3,000 miles of Great Lakes shoreline — making it one of the most dock-dense states in the nation. Whether you need an EGLE permit depends primarily on where your dock is located and how it's constructed. Many standard residential docks on inland lakes are exempt from state permitting, but Great Lakes and connecting waterway docks almost always require full review.

The Key Distinction: Inland Lakes vs. Great Lakes

Michigan's dock permitting splits clearly between two regulatory regimes administered by the Department of Environment, Great Lakes, and Energy (EGLE):

Part 301 Inland Lakes: The Exemption Rules

Under Part 301, a dock or pier is exempt from EGLE permitting if it meets ALL of these conditions:

🚗 Michigan Part 301 No-Permit Criteria

  • Width: No wider than 6 feet at any point (including any end platform)
  • Seasonal removal: Dock is removed from the water each year before December 1 (or is designed to float and be removed seasonally)
  • No permanent pilings: Structure does not involve driven or placed permanent pilings or cribs embedded in the bottomland
  • No fill: No filling of bottomland soils
  • No aquatic vegetation removal beyond the corridor: Complies with aquatic plant management rules
  • No navigation obstruction: Does not unreasonably interfere with navigation
  • Not in a Type 2 or Type 3 critical dune area: Does not fall within a designated critical sand dune area

A 6-foot-wide seasonal dock driven into the bottomland with removable posts that are pulled each fall is the classic Michigan inland lake dock that requires no EGLE permit. Permanent cribs or pilings embedded in the lake bottom trigger the permit requirement even if the dock structure above is small.

When a Part 301 Permit Is Required

You need an EGLE Part 301 permit for inland lake docks when your project:

Part 301 permit applications are submitted to your EGLE District Office. The standard review period is 90 days from receipt of a complete application, though straightforward projects often move faster.

Part 325 Great Lakes: Permits Required for Nearly Everything

On the Great Lakes and designated connecting waterways, EGLE's Part 325 requires a permit for virtually all structures placed in, on, or over the bottomlands — including residential docks. There is no equivalent to the inland lake exemption for Great Lakes shoreline properties.

Part 325 permits involve review of the structure's impact on public trust bottomlands, navigational safety, wave action and erosion effects, and neighboring property impacts. The application requires detailed plans including a site survey, cross-section drawings, and photographs. Processing typically takes 60 to 90 days for standard residential projects, but can extend significantly for projects in sensitive Great Lakes areas or those affecting critical dune zones.

Great Lakes High-Water Considerations

Michigan's Great Lakes shoreline has experienced significant water level fluctuations in recent years — extreme highs in 2020 followed by declining levels. EGLE and the Army Corps Detroit District have specific guidelines about dock design and permitting that account for variable water levels. Dock designs that were appropriate at low water may need modification when Great Lakes levels rise. If you're building on Great Lakes shoreline, factor water level variability into your dock design and discuss it explicitly with EGLE and the Corps during the permit process.

Local Government Requirements

Many Michigan townships and counties require local permits for dock construction independent of EGLE. Townships with shoreline zoning ordinances — common throughout northern Michigan, the Upper Peninsula, and the metro Detroit lakefront communities — often impose their own setback rules, size limitations, and construction standards. Check with your township or county planning/zoning office before assuming EGLE's exemption means no permits at all are needed.

Wetland Considerations

Michigan has extensive wetland resources, and many lakefront properties have regulated wetlands at the water's edge. Construction within 500 feet of a Type 3, 4, or 5 wetland (adjacent to lakes, streams, or Great Lakes) requires EGLE wetland permit review under Part 303. If your dock area involves any marshy, emergent-vegetation zone, assume Part 303 review may apply in addition to Part 301 or Part 325.

Agency Contacts — Michigan

AgencyRoleContact
EGLE Water Resources Division Part 301 (inland), Part 325 (Great Lakes), Part 303 (wetlands) 800-662-9278 | michigan.gov/egle/water
Army Corps — Detroit District Federal Section 10/404 permits 313-226-2218 | lre.usace.army.mil
Army Corps — Buffalo District Eastern UP, eastern Lower Peninsula federal permits 716-879-4200 | lrb.usace.army.mil
Your Township/County Zoning Local dock permits, setbacks, shoreline zoning Varies by jurisdiction

Related Guides

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Free Download: Dock Permit Application Prep Checklist

Covers EGLE application components, site plan requirements, and local permit documentation for Michigan dock projects.

Download Free PDF →

Frequently Asked Questions — Michigan Dock Permits

Based on the Part 301 exemption criteria, a 5-foot-wide dock that is removed seasonally before December 1 and does not involve permanent pilings, fill, or wetland impacts generally does not require an EGLE permit on an inland lake. However, you still need to ensure your dock complies with your township's local zoning ordinances and setback rules, which may be more restrictive. Keep a written record of your dock's dimensions confirming compliance with the exemption — it's useful during property sales and if a conservation officer ever asks about the installation.
A permanent boathouse over water does not qualify for the Part 301 exemption — it requires an EGLE Part 301 permit. You'll need to submit detailed plans to your EGLE district office including site survey, structural drawings, and photographs of the proposed location. If the boathouse is on the Great Lakes, Part 325 applies instead. Additionally, most Michigan townships regulate boathouse construction through local zoning, so check with your township zoning office in parallel with EGLE. The Army Corps may also have jurisdiction if the water body is navigable.
Yes — significantly different. Lake Michigan shoreline is regulated under Part 325 (Great Lakes Submerged Lands), not Part 301. There is no exemption equivalent to the inland lake 6-foot seasonal dock rule. All structures on Great Lakes bottomlands require an EGLE Part 325 permit, and the Army Corps Detroit District also has jurisdiction over Great Lakes structures under Section 10 of the Rivers and Harbors Act. Part 325 applications require more detailed plans and typically a longer review timeline than standard Part 301 applications. Great Lakes shoreline projects also frequently require coordination with EGLE's coastal management program regarding critical dune areas.
This is a common situation in Michigan given how many docks predate the modern permitting framework. In practice, title companies and real estate attorneys increasingly flag unpermitted dock structures, and buyers may request permit documentation as a condition of purchase. If your dock was built before current Part 301 rules took effect and hasn't been modified, you may be in a "pre-existing use" situation — but this doesn't guarantee clear title or prevent enforcement if the dock has been modified since original construction. Consulting with EGLE's District Office about the dock's status before listing the property gives you the best picture of what documentation or actions, if any, are needed.
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