A non-navigable waterway in Louisiana is a stream, bayou, pond, or channel that could not have supported commercial boat traffic when the state entered the Union in 1812, and the land under it is private property. Under Louisiana Civil Code Article 506, the bed belongs to the owners of the adjacent banks, split along a line drawn down the middle.1Justia. Louisiana Civil Code Art. 506 – Ownership of Beds of Nonnavigable Rivers or Streams If your land sits on both sides of a small bayou, the whole bed is yours. That private ownership is real, but it comes attached to drainage duties, permit requirements, and limits on what you can build, dig, or block.
How a Waterway Gets Classified as Non-Navigable
Classification hinges on one historical question: could the waterway have carried commercial trade or travel in its natural condition at statehood in 1812? The U.S. Supreme Court set this test in United States v. Holt State Bank (1926), defining navigable waters as those “used, or susceptible of use, in [their] natural and ordinary condition, as highways of commerce over which trade and travel are or may be conducted.”2Library of Congress. United States v. Holt State Bank, 270 U.S. 49 (1926) The Louisiana Supreme Court applied the same standard in State v. Placid Oil Co. (1973).3Louisiana Law Review. The Public Trust Doctrine in Louisiana
A waterway is non-navigable when it has no credible history of commercial use and could not have supported trade by the watercraft common in 1812. Intermittent streams, shallow bayous, and artificial channels typically fit. Seasonal flooding or the occasional kayak does not make a waterway navigable. The party claiming a waterway is navigable carries the burden of proof, usually with historical maps, shipping records, or expert testimony. Later alterations like levees or dams do not change the legal status unless they fundamentally transformed the natural channel before statehood.
Louisiana’s Office of State Lands keeps records of waterways whose status has already been adjudicated, but the list is not exhaustive and new disputes come up regularly.4Louisiana Division of Administration. Office of State Lands If classification is unclear for a waterway on your property, a title examination and a review of historical records are the starting points.
Who Owns the Bed and Where the Line Falls
Article 506 gives you the default rule: the bed of a non-navigable river or stream belongs to the riparian owners along a line down the middle.1Justia. Louisiana Civil Code Art. 506 – Ownership of Beds of Nonnavigable Rivers or Streams This is the opposite of the rule for navigable waterways, where the state holds the bed in public trust and private ownership is not available.3Louisiana Law Review. The Public Trust Doctrine in Louisiana
The midpoint rule applies “in the absence of title or prescription.” A recorded title can place the boundary elsewhere, and a neighbor who has openly and continuously used part of the bed beyond the midpoint for the prescriptive period (generally 10 years with just title and good faith, or 30 years without) may have acquired that portion by acquisitive prescription. Check the title records and the history of use before you assume the midline defines your property.
Boundaries That Move
The line is not frozen. When a stream gradually deposits soil on your bank, that new land (alluvion) is yours as the bank owner. When the water gradually recedes and exposes dry land (dereliction), the adjacent bank owner takes that too.5Justia. Louisiana Civil Code Art. 499 – Alluvion and Dereliction The word that matters is “gradually.” A sudden shift in course from a flood or storm does not transfer ownership the same way. Because you already own the bed of a non-navigable waterway, a shifting channel changes your usable acreage directly.
What You Can and Cannot Do With the Water
Riparian Use
As a riparian owner, you can draw water for domestic and agricultural purposes, modify your banks, and otherwise use the waterway, subject to a reasonable-use standard: your use cannot unreasonably interfere with other riparian owners doing the same. Irrigating crops from a shared creek is fine. Drawing it down so your downstream neighbor gets nothing is not. These rights attach to the land and cannot be sold separately from the property.
Natural Drainage You Have to Accept (and Cannot Worsen)
Owning the bed does not let you block natural flow. Civil Code Article 655 imposes a legal servitude: lower estates must receive surface water that flows naturally from higher land.6Justia. Louisiana Civil Code Art. 655 – Natural Drainage Dam a creek, fill a drainage channel, or build something that pushes water onto a neighboring property, and you have violated the servitude and may be liable for the resulting flood damage. The duty runs the other way too: the upper owner cannot concentrate or accelerate the flow artificially. Construction, grading, and paving near a non-navigable waterway all carry this risk. Courts look at whether a human act caused the change and whether the downstream impact was foreseeable.
Separately, Louisiana Revised Statutes 38:214 bars dumping trees, debris, or other material into state waterways or drains in a way that could interfere with drainage, with fines from $25 to $300 per violation.7Justia. Louisiana Revised Statutes 38-214 – Interference With Drainage Prohibited
When You Still Need a Permit
Private ownership of the bed does not exempt you from permitting. Building, dredging, or filling can require federal, state, and local approvals, and skipping them can lead to fines or forced removal of what you built.
Federal Jurisdiction After Sackett
The 2023 U.S. Supreme Court decision in Sackett v. Environmental Protection Agency narrowed the reach of the Clean Water Act, which now covers only “relatively permanent, standing or continuously flowing bodies of water” and adjacent wetlands with a “continuous surface connection” to those waters.8Supreme Court of the United States. Sackett v. Environmental Protection Agency, 598 U.S. 651 (2023) For a Louisiana landowner, this means ephemeral streams that only flow during rain, isolated ponds with no surface connection to a navigable river, and seasonal wet areas likely fall outside federal jurisdiction.
Where a non-navigable waterway on your property does meet the Sackett test, Section 404 of the Clean Water Act requires a U.S. Army Corps of Engineers permit before you discharge any dredged or fill material. That covers docks, riprap, road crossings, filling for development, and even creating ponds, whether the work is permanent or temporary.9US Army Corps of Engineers Los Angeles District. Section 404 of the Clean Water Act A proposed federal rule published in November 2025 would codify the Sackett standard and explicitly exclude ephemeral waters.10Federal Register. Updated Definition of Waters of the United States
State and Coastal Permits
Projects in Louisiana’s coastal zone (much of the southern part of the state) need a coastal use permit from the Louisiana Department of Natural Resources’ Office of Coastal Management. The office reviews docks, bulkheads, bridges, levees, and similar structures that could affect coastal waters, drainage, or wetlands.11Cornell Law School. La. Admin. Code Tit. 43, I-723 – Rules and Procedures for Coastal Use Permits In the coastal zone you will typically need both a Corps Section 404 permit and the state coastal use permit, and parish governments may add their own flood-zone or drainage requirements.12U.S. Army Corps of Engineers – New Orleans District. Permitting Overview General Information
Dredging adds another layer. Louisiana Department of Environmental Quality acts as the state’s water quality certifying authority under Section 401 of the Clean Water Act, so any project needing a federal permit also needs LDEQ’s certification before that federal permit can issue.13Louisiana Department of Environmental Quality. Water Quality Certifications The Louisiana Department of Wildlife and Fisheries reviews applications for impacts on fish habitats and aquatic resources and may recommend conditions.14Louisiana Department of Wildlife and Fisheries. Statewide Environmental Investigations
Wetland Mitigation
When a Section 404 project unavoidably destroys or degrades wetlands, the permit usually requires compensatory mitigation, often by purchasing credits from a wetland mitigation bank. Prices vary widely by location, from under $100,000 in rural areas to more than $3 million in metropolitan or coastal regions. Build mitigation into the project budget early.
Other Rules That Still Apply
Even where no permit is triggered, several laws reach private non-navigable waters.
LDEQ has broad authority under the Louisiana Environmental Quality Act to regulate activities that pollute or degrade water quality, set discharge limits, and enforce against sediment runoff or chemical discharges.15Justia. Louisiana Revised Statutes Title 30 RS 30-2074
If your waterway has been designated under Louisiana’s Natural and Scenic Rivers Act (RS 56:1840 et seq.), it carries development restrictions well beyond normal permitting.16Justia. Louisiana Revised Statutes RS 56-1840 – Short Title LDWF staff review proposed activities on those waterways.14Louisiana Department of Wildlife and Fisheries. Statewide Environmental Investigations
If a federally listed species lives in the waterway, Section 9 of the Endangered Species Act prohibits harming, harassing, or killing it without a permit, and “harm” can include significant habitat modification.17U.S. Fish and Wildlife Service. Concerned About a Construction Project and How It May Affect an Endangered Species A landowner can apply for an incidental take permit after developing a habitat conservation plan with the U.S. Fish and Wildlife Service. The ESA does not directly protect plants on private land unless interstate commerce or a state-law violation is involved.
Public Access and Owner Liability
The public has no right to use a non-navigable waterway in Louisiana. No one may float, wade, or anchor on it without the landowner’s permission. The bed is private property, and entering it without consent is trespassing.1Justia. Louisiana Civil Code Art. 506 – Ownership of Beds of Nonnavigable Rivers or Streams That rule flips for navigable waterways, where public use is generally allowed.
If you let people use the water recreationally for free, Louisiana’s recreational use statute (like those in most states) limits your liability: you owe no duty to keep the premises safe or warn of hazards for unpaid recreational users, with the protection falling away if you charge a fee or act with willful or malicious disregard for safety. Ponds and creeks can also trigger the attractive nuisance doctrine where children are involved, which requires reasonable care when you know children are likely to reach a dangerous condition on the property.
Penalties for Getting It Wrong
Under Louisiana Revised Statutes 30:2025, LDEQ can issue expedited enforcement citations with fines up to $5,000 per violation, capped at $10,000 per violator. Standard civil penalties run up to $32,500 per day of violation, and intentional or knowing violations that cause severe environmental damage or endanger human health can add up to $1 million.18Louisiana State Legislature. RS 30-2025 – Enforcement
Clean Water Act violations carry federal civil penalties of up to $25,000 per day per violation in court, with administrative penalties capped at $10,000 per day per violation and $125,000 per administrative case.19US EPA. Clean Water Act Section 309 – Federal Enforcement Authority Discharging dredged or fill material without a Section 404 permit falls under the same framework.20US EPA. Enforcement Under CWA Section 404
Challenging an Agency Decision or a Neighbor’s Claim
If you disagree with a decision from LDNR, LDEQ, or another state agency, the first step is usually an internal administrative appeal under Louisiana’s Administrative Procedure Act, where an administrative law judge hears your challenge to a permit denial or enforcement action. If that goes against you, Louisiana Revised Statutes 49:964 allows judicial review by petition in district court within 30 days of the agency’s final decision.21Justia. Louisiana Code RS 49-964 – Judicial Review of Adjudication The court reviews the agency record for whether the decision was arbitrary, supported by evidence, and within the agency’s authority.
Boundary and ownership fights usually go to civil court. A quiet title action is the standard tool when deeds are ambiguous, the channel has shifted, or the state claims the waterway is actually navigable and therefore state-owned. These cases lean heavily on historical maps, surveys, and expert testimony about the waterway’s condition at statehood. Trespass claims against unauthorized users of your private waterway also run through civil court, and mediation or arbitration is often a cheaper path for private disputes before trial.