Seawalls and Bulkheads Near Sleeping Bear Dunes: What's Actually Allowed

EGLE's Permitting Framework for Private Great Lakes Shoreline

On private Great Lakes shoreline outside the National Lakeshore's boundary, Michigan's EGLE regulates construction activity through its Great Lakes Submerged Lands Program, which covers roughly 3,288 miles of Great Lakes shoreline and more than 38,000 square miles of Great Lakes bottomlands statewide. Most shore-armoring structures -- seawalls, revetments, sandbags, and groins -- fall under this program's permit requirement when they involve filling, dredging, or structural alteration lakeward of the ordinary high-water mark. A limited category of minor activities above the ordinary high-water mark and below the water's edge is exempt from permitting, but shoreline management activities exceeding that narrow exemption require an EGLE permit, and the U.S. Army Corps of Engineers typically also needs to approve placement of materials along the waterline and in the water.

Once an application is submitted, it enters a 30-day administrative-completeness review period, after which EGLE has 60 days to process a complete application, per the agency's own program materials. This is a genuinely different regulatory posture than a state that has banned new oceanfront hard structures outright -- Michigan's system is permit-and-review-based rather than a blanket prohibition, meaning shore armoring is realistically achievable on ordinary private frontage here, subject to that real, multi-step permitting process.

Setback and Erosion-Rate Rules Layer on Top of Basic Permitting

For property within a designated High Risk Erosion Area (HREA) -- roughly 250 miles of Lakes Michigan, Superior, and Huron shoreline eroding at an average rate of one foot per year or more over at least 15 years -- additional setback rules apply to new construction, measured from the 'Erosion Hazard Line' (typically the top of an eroding bluff) rather than the ordinary high-water mark used for basic submerged-lands permitting. This page's Beach Erosion Reality and Flood Zones pages cover the HREA program's specific setback mechanics (a 30-year distance for moveable structures, a 60-year distance for septic systems and permanent structures) in more depth. The practical point here: a seawall, revetment, or bulkhead project on HREA-designated shoreline involves navigating both the basic submerged-lands permit process and any applicable erosion-area setback and siting review, not just a single simple application.

Emergency Response Precedent: EGLE Has Expedited Permits Before

During the 2019-2020 period of record-high Lake Michigan water levels, EGLE announced an expedited shoreline-erosion permitting process specifically for homes threatened by the high water -- a real, documented example of the state streamlining its normal review process under emergency conditions rather than holding every applicant to the standard timeline regardless of urgency. This is useful context for understanding that Michigan's shoreline-armoring permitting system has real flexibility built in for genuine emergencies, even though the standard process (30-day completeness review, 60-day processing) remains the baseline expectation for a routine, non-emergency project.

Inside the National Lakeshore Boundary: A Structurally Different, Likely Far More Restrictive Question

Everything above describes EGLE's framework for private Great Lakes shoreline. A meaningful share of the immediate Lake Michigan frontage near the dunes themselves sits inside Sleeping Bear Dunes National Lakeshore's federal boundary -- land the National Park Service owns and manages under a mandate specifically to preserve the natural dune, bluff, and shoreline system, not land subject to an ordinary state shoreline-permitting process at all. This page did not find a specific, published National Park Service policy statement or documented example addressing private shoreline armoring requests within the Lakeshore's boundary, and does not want to state a specific approval or denial pattern it could not verify.

What can be said honestly, as reasoned inference rather than a confirmed fact: a National Park Service unit whose founding purpose is preserving a natural, dynamic dune and bluff system is structurally very unlikely to permit private hard armoring on its own federal frontage the way a state shoreline-management agency might permit it on ordinary private land -- allowing a private seawall or revetment on NPS land would run directly against the preservation mandate that justified creating the Lakeshore in the first place. This page states that as a logical inference from the park's documented purpose and management approach, not as a confirmed NPS policy citation, and directs any owner or prospective buyer of a boundary-adjacent parcel with a genuine interest in shoreline stabilization to contact the National Lakeshore's own office directly for the actual, current, confirmed policy before assuming either that armoring is possible or impossible on a specific parcel.

Why Living-Shoreline and Vegetative Approaches May Be a More Realistic First Question

Given both EGLE's real permitting hurdles for hard armoring on private frontage and the likely far greater restriction on anything touching National Lakeshore land, a property owner genuinely concerned about bluff or shoreline erosion here may find a vegetative or 'soft' erosion-management approach -- native plantings, engineered slope stabilization that doesn't involve a hard concrete or steel structure -- a more realistically permittable starting point than a traditional seawall or revetment, though this page did not independently confirm current EGLE guidance specifically favoring soft approaches over hard armoring in this exact area the way some other Great Lakes states' coastal programs explicitly do. Ask EGLE's Water Resources Division directly what erosion-management approaches are realistically permittable for a specific parcel's exact erosion profile before assuming a hard-structure solution is either required or achievable.

What This Means for a Buyer or Owner

For ordinary private Great Lakes shoreline outside the National Lakeshore boundary, shore armoring is realistically achievable through EGLE's permit process, but it's a genuine, multi-step regulatory process, not a routine home-improvement project, and it gets meaningfully more complex if the parcel also sits within a designated High Risk Erosion Area. For any parcel near or adjacent to the federal boundary, confirm the exact boundary line with a title search and survey before assuming any shoreline work is possible at all, and contact the National Lakeshore's office directly for the park's actual current policy on any shoreline-adjacent private construction near its boundary.