Seawall, bulkhead and dock permits

Do you need a permit for a seawall, bulkhead or dock? How federal, state, lake-authority and local approvals fit together, what changes the answer, and how to find the right office for your property.

The short answer

Usually yes, but who approves it depends on where you are and what you are doing. Work in navigable waters generally needs U.S. Army Corps of Engineers authorization, often under a nationwide permit. Many states regulate shorelines and submerged land on top of that, some lakes are managed by a utility or lake authority with its own permit, and cities, counties and HOAs can add more. Like-for-like repair of an existing, authorized wall is often the simplest path; moving the wall waterward, adding fill or placing rock is more likely to need review.

The short version

Most seawall, bulkhead and dock projects involve at least one approval, and many involve several. The layers below apply in different combinations depending on where your property is. Your contractor should know which apply locally, but the property owner carries the consequences if something is missed. Confirm before work starts.

Federal: the U.S. Army Corps of Engineers

Federal law has required authorization for structures in navigable waters since 1899. Section 10 of the Rivers and Harbors Act makes it unlawful, without authorization, “to build or commence the building of any wharf, pier, dolphin, boom, weir, breakwater, bulkhead, jetty, or other structures” in navigable waters, and also covers excavating or filling.[1] Today the Corps evaluates permit applications for “essentially all construction activities that occur in the Nation’s waters.”[2]

Many residential projects are handled under nationwide permits, which are general authorizations for common, lower-impact activities. The ones that most often come up here:

  • NWP 3 (Maintenance): repair or replacement of previously authorized structures
  • NWP 13 (Bank Stabilization): new bank stabilization such as bulkheads and revetments
  • NWP 54 (Living Shorelines)

The current set took effect on March 15, 2026 and expires on March 15, 2031.[3] Some activities require notifying the Corps before work starts. Projects that don’t fit a nationwide permit go through a longer individual review. The Corps decides which applies.

State: shorelines, submerged land and water quality

States add their own layer, and it varies more than anything else on this page. Common elements:

  • Submerged land ownership. In many states the bottom in front of your property belongs to the state, so structures over it need a lease, easement or registration.
  • Coastal management programs. Coastal states run programs under the federal Coastal Zone Management Act; NOAA lists each state’s program and contacts.[4]
  • Inland lakes and streams. States regulate these too. In Michigan, for example, EGLE has an expedited “minor project” category for repairing or replacing existing seawalls on inland lakes. It comes with a habitat best-management practice, such as shortening the wall by 25% with riprap or bioengineering, adding woody structure, or keeping a 6-foot no-mow buffer above the wall.[6]
  • Water quality certification. Federal permits can require a state water quality certification.

Lake authorities and utilities

On many reservoirs, the utility that operates the dam manages the shoreline and issues its own permits. At Lake of the Ozarks, Ameren Missouri reviews applications against its shoreline management guidelines:[5]

  • Bank stabilization (seawalls, riprap, stacked stone or vegetation) costs $300 for the first 100 feet plus $1 per foot beyond.
  • New docks or dock modifications cost $550.
  • Corps approval is also required for activity (other than boat docks) below elevation 658.5 feet or in a wetland.
  • Construction may not start until the permit is issued.

If your lake is a reservoir, find out who operates it before you plan anything.

Local: city, county and HOA

Building permits, floodplain and setback rules, electrical permits for dock power and lifts, and HOA design rules can all apply on top of state and federal approvals. Local permit offices are also often the quickest way to find out which state and federal steps your area usually needs.

What makes approval simpler or harder

Usually simplerUsually more review
Like-for-like repair of an existing, authorized wallBuilding a new wall where there wasn’t one
Work confined to the existing footprintMoving the wall waterward or installing a new wall in front
Replacing dock deckingEnlarging a dock or changing its footprint
Work above the waterlinePlacing fill, rock or riprap in the water
Upland work behind the wallWork in or near wetlands, seagrass or shellfish habitat

How to find the right offices

  1. Start local. Call your city or county building department and ask what shoreline and dock work needs here.
  2. Find your state program. For coastal states, use NOAA’s directory of state coastal management programs.[4] For inland lakes, contact your state’s environmental or natural resources agency.
  3. Check whether a utility or lake authority manages the shoreline, if you are on a reservoir.
  4. Identify your Corps district. The Corps regulatory program covers the whole country through district offices.[2]
  5. Make it part of the contract. Ask your contractor to name every approval, who will obtain it, and whether it is in the price.

Questions owners ask

Do I need a permit to repair my seawall?

Often, though repair of an existing, previously authorized wall is usually the simplest category. The Corps has a nationwide permit for maintenance of previously authorized structures, and some states have streamlined categories for seawall repair or replacement. Whether your job qualifies, and whether you must notify an agency first, is the agency's call, not the contractor's.

Do I need a permit to build a dock?

In most places, yes. Docks are structures in or over the water, which brings in the Corps for navigable waters and, depending on location, a state agency, a lake authority or utility, and local building and electrical permits.

Who applies, me or the contractor?

Either can, but experienced marine contractors usually prepare and submit applications as part of the job. Ask who is responsible, whether it is in the price, and to see the approvals before work starts.

What happens if work is done without a permit?

It varies, but consequences can include stop-work orders, fines, and orders to remove the structure. At Lake of the Ozarks, for example, Ameren Missouri can direct removal of unpermitted docks and structures and charges a $2,000 enforcement fee.

Sources

  1. Section 10 of the Rivers and Harbors Appropriation Act of 1899, U.S. Environmental Protection Agency. Accessed October 13, 2026. Archived EPA page (last updated April 11, 2019) quoting 33 U.S.C. 403.
  2. Regulatory Program and Permits, U.S. Army Corps of Engineers. Accessed October 13, 2026.
  3. Reissuance and Modification of Nationwide Permits (91 FR, Jan. 8, 2026), U.S. Army Corps of Engineers, Federal Register. Accessed October 13, 2026. The 2026 nationwide permits took effect March 15, 2026 and expire March 15, 2031.
  4. The National Coastal Zone Management Program — state programs, NOAA Office for Coastal Management. Accessed October 13, 2026.
  5. Lake of the Ozarks Permitting, Ameren Missouri. Accessed October 13, 2026.
  6. Permits: What's Up With EGLE Permits, Part IV, Michigan Lakes and Streams Association. Accessed October 13, 2026. Undated article, written around early 2022, describing EGLE's minor project categories.