Boating while intoxicated is a Class B misdemeanor under Texas Penal Code § 49.06 — operating a watercraft while intoxicated — punishable by 72 hours to 180 days in jail and a fine up to $2,000, with prior DWI or BWI convictions raising the charge to a Class A misdemeanor or a third-degree felony. Below: the controlling statute, the full punishment ladder, why game wardens can stop a boat without reasonable suspicion, and the defenses that work in Collin, Dallas, Denton, and Tarrant County lake cases.
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Published 2026-06-11 · Reviewed by Reggie London and Njeri London, Co-Founding Partners · Last reviewed: 2026-06-11
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Controlling statute:Texas Penal Code § 49.06 Classification: Class B misdemeanor with a 72-hour minimum term of confinement; enhanced under § 49.09 Punishment range: Class B (72 hours–180 days + up to $2,000) first offense; Class A (30 days–1 year + up to $4,000) with one prior intoxication conviction; third-degree felony (2–10 years + up to $10,000) with two priors or a prior intoxication manslaughter; state jail felony (180 days–2 years + up to $10,000) with a passenger under 15 aboard
What Is Boating While Intoxicated Under Texas Law?
Texas Penal Code § 49.06 is one sentence long: “a person commits an offense if the person is intoxicated while operating a watercraft.” The statute was enacted in 1993 as part of the consolidated intoxication-offense chapter and took effect September 1, 1994. Its brevity hides three defined terms that decide most contested cases — intoxicated, operating, and watercraft.
“Intoxicated” carries the same two-prong definition used in DWI cases. Under § 49.01(2), the State can prove either (A) loss of the normal use of mental or physical faculties by reason of alcohol, a controlled substance, a drug, a dangerous drug, or any combination, or (B) an alcohol concentration of 0.08 or more. “Watercraft” is broader than most boaters assume: § 49.01(4) covers “a vessel, one or more water skis, an aquaplane, or another device used for transporting or carrying a person on water, other than a device propelled only by the current of water.” Jet skis and other personal watercraft are squarely covered. So, by the statute’s text, are paddle-propelled kayaks and canoes — the only carve-out is a device moved only by the current, like an inner tube drifting downstream.
Notice what § 49.06 does not require: a public place. The DWI statute, § 49.04, applies only to operation “in a public place”; the boating statute has no location element at all. A private cove, a members-only lake, even a stock pond — the statute reaches them.
“Operating” is not defined in the Penal Code, and that gap is where many BWI cases are won or lost. In Harold Thomas Mabry v. State, No. 09-16-00067-CR (Tex. App. Sep 27, 2017), the Beaumont court of appeals applied the Court of Criminal Appeals’ totality-of-the-circumstances standard to a watercraft: a person operates a vessel when the evidence shows he “took action to affect the functioning of his vehicle in a manner that would enable the vehicle’s use.” In Mabry the State cleared that bar because the deputy saw the defendant seated at the helm of a moving boat, then watched him shift to neutral and flip on the navigation lights when the patrol lights came on. A boater asleep on a drifting deck, or anchored for hours with the engine cold, presents a very different evidentiary picture.
What Are the Penalties for Boating While Intoxicated?
BWI punishment runs on the same enhancement ladder as DWI — and the two offenses feed each other’s enhancements. Under § 49.09, prior convictions “relating to the operating of a motor vehicle while intoxicated” count against a boating charge exactly as prior boating convictions do, along with aircraft and amusement-ride intoxication offenses.
Scenario
Classification
Confinement
Max fine
First offense (§ 49.06)
Class B misdemeanor
72 hours minimum – 180 days county jail
$2,000
One prior intoxication conviction — DWI, BWI, flying or amusement-ride (§ 49.09(a))
Class A misdemeanor
30 days minimum – 1 year county jail
$4,000
Two prior intoxication convictions, or one prior intoxication manslaughter (§ 49.09(b))
Three wrinkles deserve attention. First, the 72-hour minimum term of confinement is written into § 49.06(b) itself — unusual for a Class B misdemeanor, though probation can satisfy it in practice. Second, § 49.09(g) treats a deferred adjudication for BWI as a conviction for enhancement purposes, so a “dismissed” deferred still counts against you forever. Third, § 49.09(h) requires the court to restrict a repeat offender (second offense within five years) to driving a motor vehicle equipped with an ignition interlock — a device installed on your car, even though the offense happened on a boat. Use our BAC estimator to understand how alcohol concentration figures are reached and our DWI defense hub for the parallel motor-vehicle ladder.
Elements the State Must Prove
To convict under § 49.06, the State must prove each element beyond a reasonable doubt:
1. The defendant
Identity of the operator. On a crowded deck where several people moved around the helm, proving who was operating — not merely who owned the boat or stood closest to the wheel — is a genuine contested issue.
2. Was intoxicated
Either the loss-of-faculties prong or the 0.08 alcohol-concentration prong of § 49.01(2) — measured at the time of operation, not at the dock or the jail an hour later.
3. While operating
Action affecting the functioning of the vessel in a manner enabling its use, judged on the totality of the circumstances — the standard applied to watercraft in Mabry. Drifting, anchoring, or sitting in a moored boat complicates this element.
4. A watercraft
A vessel, water skis, an aquaplane, or another device carrying a person on water, excluding devices propelled only by the current (§ 49.01(4)).
Unlike DWI, the State does not have to prove a public place. It also does not have to prove bad boating — weaving, speeding, or a collision — although juries expect to hear why the stop happened.
Why Can Game Wardens Stop a Boat Without Reasonable Suspicion?
This is the single biggest legal difference between a DWI and a BWI case. On the road, an officer needs reasonable suspicion of a traffic violation or crime before making a stop. On the water, Parks and Wildlife Code § 31.124(a) authorizes an enforcement officer to “stop and board any vessel subject to this chapter” to inspect for compliance with the Water Safety Act — life jackets, registration, fire extinguisher, lights, whistle or horn. No suspicion required.
The Court of Criminal Appeals upheld that authority against a Fourth Amendment challenge in Schenekl v. State, 30 S.W.3d 412, 416 (Tex. Crim. App. 2000). Applying a two-pronged balancing test, the court weighed the State’s high interest in recreational water safety — boats carry no license plates or inspection stickers, and fixed checkpoints are impractical on open water — against what it described as a minimal intrusion: “a brief inspection, not a full-blown search of the boat or driver.”
That last phrase is the defense lane. The majority’s reasoning rests on the stop staying brief and regulatory, and the concurrence emphasized that the inspection may not exceed its stated safety purpose absent reasonable suspicion or probable cause. A warden who finishes the safety checklist and then prolongs the detention into an intoxication investigation needs articulable signs of impairment — admissions, odor, fumbling, slurred speech — developed during the lawful inspection window. Your attorney should reconstruct the stop minute by minute from body-camera and dispatch records and litigate any overreach through a motion to suppress under article 38.23 of the Code of Criminal Procedure.
How Do Prosecutors Prove Intoxication on the Water?
The State’s proof in a lake case usually stacks four layers: the warden’s observations during the safety check, performance on sobriety tests, a breath or blood result, and the surrounding scene — coolers, empties, witness statements. Each layer has water-specific weaknesses.
Start with the tests. The standardized roadside battery — walk-and-turn, one-leg stand — was validated on dry, level pavement, and nobody can walk a straight line on a rocking deck. Marine officers therefore administer a seated battery: horizontal gaze nystagmus, finger-to-nose, palm pat, and hand-coordination exercises, sometimes after bringing the boater to shore. The seated alternatives rest on thinner validation research than the roadside battery, and the gap between “failed a seated coordination drill” and “lost the normal use of physical faculties” is real cross-examination territory.
Then there is the environment itself. Defense lawyers call it “boater’s fatigue”: hours of sun exposure, heat, dehydration, engine vibration, glare, and wave motion produce bloodshot eyes, flushed skin, unsteady balance, and sluggish responses in completely sober people. The same stressors that make the lake exhausting mimic the cues officers score as intoxication — and a jury full of weekend boaters understands that.
Finally, chemistry. After a BWI arrest the implied-consent statute applies — Transportation Code § 724.011(a) expressly covers arrests arising from operating “a watercraft” — so officers will request breath or blood and can seek a warrant on refusal. But the timeline helps the defense: securing the vessel, transporting the boater to shore, and reaching a testing facility commonly stretches the gap between operation and testing well past what is typical in a traffic case, sharpening retrograde-extrapolation fights over what the alcohol concentration was while operating. See our page on implied consent and blood/breath testing.
What Defenses Work Against a BWI Charge?
Every L and L Law Group BWI defense starts with the stop and works forward through each element:
“Operating” attacks. The totality-of-the-circumstances standard applied in Mabry requires proof you took action enabling the vessel’s use while intoxicated. Anchored, rafted-up, drifting with the engine off, or tied at the dock — the State’s timeline must put intoxication and operation together.
Scope-exceeded stops.Schenekl permits a brief safety inspection, not a fishing expedition. If the warden completed (or never genuinely pursued) the safety checklist and pivoted to an intoxication investigation without articulable impairment signs, suppression under CCP article 38.23 is on the table.
Environmental causation. Sun, heat, dehydration, wave motion, and fatigue explain most of the “cues” in the offense report without a drop of alcohol.
Seated-battery reliability. The marine test battery lacks the roadside battery’s validation pedigree; HGN scored on a moving deck invites error.
Chemical-test timing. The long water-to-lab delay widens the gap between the test number and the at-operation concentration the statute requires.
Warrant and procedure defects. Blood draws need consent or a warrant; affidavit defects, chain-of-custody breaks, and lab issues are litigated the same as in DWI practice.
Identity of the operator. On party boats, who actually drove — and when — is often genuinely unclear.
Hypothetical: a boater anchors in a quiet cove on Lewisville Lake at noon and spends three hours swimming and drinking with friends. When a warden approaches at 3 p.m., the engine is off, the anchor is down, and the keys are in a cup holder. Whether the State can prove “operating” turns on the totality of the circumstances — it needs evidence the boater took action to enable the vessel’s use while intoxicated, not three hours earlier when he was sober. If the warden never saw the boat move, the case may rest entirely on admissions — which is why what you say at the gunwale matters so much.
Does a BWI Arrest Affect Your Texas Driver's License?
Counterintuitively, yes — an arrest that happened a mile from any road can suspend your driver’s license. Because § 724.011(a) extends implied consent to watercraft arrests, refusing the requested breath or blood specimen triggers an administrative license revocation: 180 days for a first refusal, and two years if your record shows an alcohol-related enforcement contact in the preceding 10 years (§ 724.035).
The ALR case is a separate civil proceeding with its own deadline: you have 15 days from notice of suspension to request a hearing, or the suspension activates automatically on day 40. The hearing is also the defense’s first shot at cross-examining the arresting officer under oath. Our ALR hearings practice page, the ALR charge guide, and the license-suspension overview cover the procedure in detail.
Where Are BWI Cases Filed in Collin, Dallas, Denton, and Tarrant Counties?
Misdemeanor BWI cases are filed by information in the county courts at law of the county where the stop occurred; felony-enhanced cases are indicted and assigned to district courts. On DFW lakes, Texas Parks and Wildlife Department game wardens, county sheriff lake-patrol units, and some city marine units all make BWI arrests, and enforcement concentrates on summer weekends from Memorial Day through Labor Day and the July Fourth holiday.
Collin County — Lavon Lake
Stops on Lavon Lake are prosecuted in the Collin County Courts at Law, which sit at the Collin County Courthouse, 2100 Bloomdale Road, McKinney. Felony-enhanced files go to the district courts in the same building. We defend Collin County lake cases from our Frisco office, fifteen minutes away.
Dallas County — Lake Ray Hubbard
Lake Ray Hubbard is owned by the City of Dallas but spans the Dallas–Rockwall–Kaufman county lines, so the filing county depends on where on the water the stop occurred — a venue wrinkle worth checking in every Ray Hubbard case. Dallas County misdemeanors are heard in the county criminal courts at the Frank Crowley Courts Building in Dallas; east-side stops can land in Rockwall or Kaufman County instead.
Denton County — Lewisville Lake & Ray Roberts Lake
Lewisville Lake generates a steady BWI docket each summer. Cases are filed in the Denton County Courts at Law at the Denton County Courts Building in Denton, with felony enhancements handled by the district courts.
Tarrant County — Grapevine, Eagle Mountain & Benbrook Lakes
Grapevine Lake, Eagle Mountain Lake, Lake Worth, and Benbrook Lake stops are prosecuted in the Tarrant County criminal courts at the Tim Curry Criminal Justice Center in Fort Worth.
The BWI Case Timeline: Arrest Through Resolution
Arrest on the water. The officer must account for your boat — § 31.124(e) makes vessel safety “the paramount consideration of an arresting officer” — so it is typically released to a sober passenger, moored, or towed and stored at your expense.
Transport and testing. You are brought to shore, then to jail or a testing site; breath or blood is requested under the implied-consent statute, with a warrant available on refusal.
Magistration. A magistrate reads the charge and sets bond, generally within 48 hours under Code of Criminal Procedure article 15.17. Misdemeanor BWI bonds in DFW counties are usually modest; bond conditions can still include no-alcohol terms.
The ALR clock. The 15-day window to request the license hearing starts at notice of suspension — it runs out long before the criminal case gets moving.
Charging. Misdemeanors are charged by information; felony-enhanced BWI goes to a grand jury for indictment.
Discovery and motions. Body-camera, boat-camera, dispatch audio, warden training records, and lab files come in under article 39.14 (the Michael Morton Act); suppression motions follow.
Resolution. Dismissal, reduction, deferred adjudication, trial, or negotiated plea — driven by how the stop, the tests, and the operating element hold up.
Collateral Consequences of a BWI
A BWI is a criminal conviction, not a ticket, and the fallout outlasts the sentence. The driver’s-license consequences above carry reinstatement fees and insurance effects. A Class B or Class A conviction appears on employment background checks indefinitely unless sealed. Commercial drivers face additional exposure: holding a CDL at the time of the offense forecloses the deferred-adjudication path, and employer alcohol policies apply regardless of where the arrest happened. Licensed professionals — nurses, teachers, realtors, securities professionals — may have board reporting duties tied to any alcohol-related arrest or conviction.
Two consequences people fear usually do not attach at the misdemeanor level: a Class B or Class A BWI conviction does not strip firearm rights under Penal Code § 46.04 or 18 U.S.C. § 922(g) — those follow felony convictions, including felony-enhanced BWI — and a single misdemeanor intoxication offense is rarely a categorical immigration bar, though repeat alcohol offenses can affect discretionary findings. Repeat alcohol convictions can also affect License to Carry eligibility under Government Code chapter 411. Every collateral question deserves case-specific advice before any plea.
How Is BWI Different From DWI and Related Charges?
Chapter 49 builds a family of intoxication offenses around the same definitions, and charge selection matters:
DWI — § 49.04. Same intoxication definition, same base punishment, but DWI requires a public place and BWI does not. The two offenses cross-enhance: yesterday’s DWI raises today’s BWI, and vice versa (enhancement guide; see also DWI second offense and DWI third offense).
Open container — § 49.031. Applies only to motor vehicles on public highways. There is no open-container offense on a boat — which is exactly why wardens focus on the operator’s condition rather than the cooler.
Public intoxication — § 49.02. The charge intoxicated passengers sometimes face if they pose a danger to themselves or others; it requires a public place and carries only a fine.
BWI with a child passenger — § 49.061. The 2023 statute (House Bill 1163) makes operating while intoxicated with a passenger under 15 a state jail felony — the watercraft twin of DWI with a child passenger.
Intoxication assault and intoxication manslaughter — §§ 49.07–49.08. Both expressly cover watercraft operation; a wake-boarding injury or a collision death converts a misdemeanor stop into a felony investigation.
Obstructing a highway — § 42.03. The classic DWI plea-reduction vehicle has no boating analog — there is no “obstructing a waterway” reduction custom — so BWI reduction negotiations are case- and county-specific.
Hypothetical: a first-time boater takes deferred adjudication on a Lavon Lake BWI, completes supervision, and the case is dismissed. Two summers later he is arrested for DWI on Preston Road. Even though the BWI never became a conviction in the ordinary sense, § 49.09(g) treats the deferred as a conviction for enhancement — the new DWI can be filed as a Class A misdemeanor with a 30-day minimum. The boating case that “went away” never really did.
Can a BWI Charge Be Dismissed, Reduced, or Expunged?
Yes — and the endgame should be planned from day one, because the record options depend on how the case resolves:
Dismissal or acquittal → expunction. A dismissed or acquitted BWI is generally eligible for expunction under Code of Criminal Procedure chapter 55A, erasing the arrest record entirely.
Deferred adjudication → nondisclosure after two years. House Bill 3582 (effective September 1, 2019) opened deferred adjudication to first-time BWI defendants under article 42A.102(b), with statutory exclusions — most notably commercial-license holders and tests of 0.15 or more. After discharge and dismissal, Government Code § 411.0726 allows a nondisclosure petition on the second anniversary, unless the case involved a collision with another person or carries a disqualifying finding. See our deferred-adjudication nondisclosure guide.
Conviction → limited second-chance sealing. A first BWI conviction may qualify for nondisclosure under the second-chance provisions of Government Code chapter 411, subchapter E-1, with waiting periods that depend on the sentence and other conditions — our nondisclosure eligibility page walks the decision tree.
Remember § 49.09(g). Sealing controls who can see the record; it does not stop prosecutors from using the deferred or conviction to enhance a future intoxication charge.
Outright dismissals in BWI cases usually trace to one of three pressure points: a stop that exceeded its Schenekl scope, an operating element the State cannot put together, or chemistry that falls apart on timing. That is where the defense investigation goes first.
Key Legal Terms
Boating While Intoxicated (§ 49.06)
Operating a watercraft while intoxicated; a Class B misdemeanor with a 72-hour minimum term of confinement, enhanced by prior intoxication convictions under § 49.09.
Watercraft (§ 49.01(4))
A vessel, one or more water skis, an aquaplane, or another device used for transporting or carrying a person on water, other than a device propelled only by the current of water.
Intoxicated (§ 49.01(2))
Not having the normal use of mental or physical faculties by reason of alcohol, a controlled substance, a drug, a dangerous drug, or a combination — or having an alcohol concentration of 0.08 or more.
Water Safety Check (Parks & Wildlife Code § 31.124)
A suspicionless stop-and-board inspection for registration and required safety equipment, upheld in Schenekl v. State, 30 S.W.3d 412 (Tex. Crim. App. 2000), and limited to its safety purpose absent reasonable suspicion or probable cause.
Administrative License Revocation (ALR)
The civil driver's-license suspension that follows a breath/blood refusal or failure after an intoxication arrest — including watercraft arrests under Transportation Code § 724.011 — with a 15-day deadline to request a hearing.
Frequently Asked Questions
Is it legal to drink alcohol on a boat in Texas?
Yes — open containers and drinking passengers are not, by themselves, illegal on Texas waters. The open-container offense in Penal Code § 49.031 reaches only the passenger area of a motor vehicle on a public highway. What § 49.06 criminalizes is being intoxicated — having lost the normal use of mental or physical faculties or testing 0.08 or more — while operating the watercraft.
Can a Texas game warden stop my boat without any suspicion?
Yes. Parks and Wildlife Code § 31.124 lets an enforcement officer stop and board any vessel to check water-safety compliance, and the Court of Criminal Appeals upheld that authority in Schenekl v. State, 30 S.W.3d 412 (Tex. Crim. App. 2000). The stop must stay a brief safety inspection, though — expanding it into an intoxication investigation requires actual signs of impairment the officer can articulate.
Will a BWI arrest suspend my driver's license?
It can, even though no car was involved. Transportation Code § 724.011 extends implied consent to watercraft arrests, so refusing a breath or blood test triggers a 180-day driver's-license suspension (two years with a prior alcohol-related contact in the past 10 years). You have 15 days from notice to request an ALR hearing and fight the suspension.
Is boating while intoxicated a felony in Texas?
A first BWI is a Class B misdemeanor, not a felony. It becomes a third-degree felony with two prior intoxication convictions or one prior intoxication-manslaughter conviction, and since September 1, 2023, operating while intoxicated with a passenger younger than 15 aboard is a state jail felony under § 49.061.
Do prior DWI convictions count against a BWI charge?
Yes. Penal Code § 49.09 counts every prior conviction “relating to the operating of a motor vehicle while intoxicated” — along with aircraft, watercraft, and amusement-ride intoxication offenses — toward enhancement. One prior DWI makes a first-time boating arrest a Class A misdemeanor with a 30-day minimum; two priors make it a third-degree felony.
Do police use field sobriety tests on the water?
They use modified, seated versions — and that is a defense opportunity. The standing roadside battery was validated on dry, level pavement, so marine officers substitute seated tests such as horizontal gaze nystagmus, finger-to-nose, and palm pat, which rest on far thinner validation research. Hours of sun, heat, dehydration, engine vibration, and wave motion can mimic the very cues those tests score.
Can I get deferred adjudication for a first BWI?
Often yes. Since September 1, 2019, Code of Criminal Procedure article 42A.102(b) permits deferred adjudication for a first BWI, subject to statutory conditions — the door generally closes if you held a commercial driver's license at the time or tested 0.15 or more. The trap: § 49.09(g) still treats that deferred as a conviction if you ever pick up another intoxication charge.
Does BWI apply to kayaks, canoes, or paddleboards?
By its text, it can. “Watercraft” under § 49.01(4) means a vessel, water skis, an aquaplane, “or another device used for transporting or carrying a person on water,” excluding only devices “propelled only by the current of water.” A paddle-propelled kayak or canoe is not propelled by the current, so it falls inside the definition — unlike an inner tube drifting downstream.
What happens to my boat after a BWI arrest?
The arresting officer must account for it — Parks and Wildlife Code § 31.124(e) makes the safety of the vessel “the paramount consideration of an arresting officer.” In practice the boat is released to a sober, licensed passenger, moored at a marina, or towed and stored, and storage or towing fees can follow depending on the agency. Photograph the boat's condition and get the storage location in writing before you leave the lake.
Reggie London co-founded L and L Law Group with a focus on federal criminal defense, complex felony defense, and TEA/SBEC matters. Licensed in Texas, admitted to TXND and TXED.
Njeri London co-founded L and L Law Group with a focus on DWI defense, family violence cases, and juvenile defense. Licensed in Texas, admitted to TXND and TXED.
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