The Legal Reality: The Causeway Is State Jurisdiction

The Sanibel Causeway isn’t just a bridge — it’s a series of connected islands and roadways maintained by Lee County and the Florida Department of Transportation. That means Florida DUI laws apply in full force, just as they do on any other highway, city street, or neighborhood road.

Florida’s DUI statute, Florida Statute 316.193, states that any person operating a vehicle while under the influence of alcohol or controlled substances, with a blood-alcohol concentration (BAC) of 0.08% or higher, can be arrested and charged with Driving Under the Influence. Law enforcement agencies — including the Lee County Sheriff’s Office, Sanibel Police, and Florida Highway Patrol — all have the authority to patrol and conduct DUI stops on the Causeway.

Even though the area feels recreational and relaxed, you’re still behind the wheel on a public roadway. That means the same traffic and criminal laws apply from the moment your tires leave Sanibel Island until you merge back toward Fort Myers.

Common DUI Scenarios After a Beach Day

It’s not hard to see how a perfect day can go wrong. Some of the most common DUI situations linked to the Sanibel Causeway involve:

  1. Driving after drinking at the beach — Even if you feel “fine” after one or two drinks, dehydration, heat, and sun exposure can amplify the effects of alcohol.
  2. Tailgate-style gatherings — Groups often park on the causeway islands for cookouts or sunset hangouts, where open containers and alcohol are common.
  3. Assuming short drives are safe — The idea that it’s “just a quick drive back over the bridge” leads many drivers to underestimate their impairment.
  4. Leaving before sobering up — Beachgoers sometimes rush to beat traffic or leave before dark, even if their BAC is still over the legal limit.
  5. Mixing alcohol and fatigue — A long day in the sun can cause drowsiness and reduced reaction time even without alcohol — and even more so with it.

Any of these situations can result in a DUI stop, especially since law enforcement often increases patrols along the causeway during weekends, holidays, and high-traffic beach days.

How Police Detect and Arrest for DUI

If an officer suspects impairment, they can initiate a traffic stop for any lawful reason — swerving, speeding, brake-light failure, or even a simple expired tag. Once stopped, you may be asked questions, given field sobriety tests, or subjected to a breathalyzer.

Refusing a breath test in Florida carries automatic consequences: an immediate license suspension and a potential evidentiary presumption against you in court. Florida’s implied consent law means that by driving, you have already agreed to such testing under lawful arrest circumstances.

Importantly, a DUI arrest can occur even without a high BAC. If the officer believes your “normal faculties” — judgment, coordination, reaction time — are impaired by alcohol or drugs, they may proceed with an arrest even at lower levels.

The Consequences of a DUI on the Causeway

A DUI in Florida carries serious penalties, even for first-time offenders. Depending on your record, BAC level, and other factors, consequences can include:

  • License suspension: Minimum of 6 months for a first offense.
  • Fines: Ranging from $500–$2,000 for a first DUI, higher for repeat offenses or high BACs.
  • Jail time: Up to 6 months for a first offense; more for aggravating factors.
  • Vehicle impoundment: Typically 10 days.
  • Mandatory DUI school and community service.
  • Ignition interlock device: Required in certain cases for license reinstatement.

If a DUI involves property damage, injury, or a minor passenger, penalties increase substantially. And because the Sanibel Causeway is considered a public thoroughfare, it doesn’t matter if you were “just leaving the beach” or “only driving a short distance.” You’re still fully accountable under state law.

Myths About “Safe” Driving on the Causeway

There are several misconceptions that often get drivers into trouble:

  • “It’s not a real highway.” — False. It’s a state-maintained route with the same legal enforcement as I-75.
  • “I’m just driving a short way home.” — Even a half-mile of impaired driving qualifies for DUI.
  • “I can sleep it off in my car.” — If you’re in physical control of a vehicle (keys in ignition or even in your possession), you can still be charged.
  • “I wasn’t swerving.” — DUI doesn’t require reckless driving; only impairment.
  • “I didn’t take a breath test.” — Refusal can still result in arrest and penalties.

Understanding these realities before you head out to Sanibel can save you from devastating legal and financial consequences.

Tips to Stay Safe and Avoid a DUI

If you plan to spend the day on Sanibel or along the Causeway, plan ahead:

  • Designate a sober driver or arrange for rideshare transportation before you arrive.
  • Hydrate and eat throughout the day — sun and dehydration make alcohol effects stronger.
  • Know your limits and don’t rely on “feeling fine.”
  • Avoid open containers anywhere in the car — they’re illegal even for passengers.
  • Rest before driving — fatigue can mimic intoxication and attract attention from police.
  • Stay overnight if needed — consider nearby lodging if you’ve had more than one drink.

Being proactive can help you enjoy Sanibel’s beauty without legal consequences following you home.