Yes, U-turns are legal in Wisconsin on most roads, as long as you can complete the maneuver safely and without interfering with other traffic. Wisconsin Statute 346.33 takes a “permitted unless prohibited” approach: you can turn around on any highway using due care, but the law lists six specific situations where a U-turn is banned outright.1Wisconsin State Legislature. Wisconsin Code 346.33 – U-turns Break one of those rules and you’re looking at a forfeiture of $20 to $40, three demerit points, and surcharges that push the real cost higher.
Where You Cannot Make a U-Turn
Section 346.33(1) prohibits U-turns in six situations, regardless of whether you believe you can execute the move safely:1Wisconsin State Legislature. Wisconsin Code 346.33 – U-turns
- At an intersection where a traffic officer is directing traffic, unless the officer specifically tells you to turn around.
- Mid-block on any street in a business district. The only exception is a divided highway where you use an authorized crossover or opening.
- Mid-block on a through highway in a residence district, with the same divided-highway exception.
- Anywhere a “No U-Turn” sign is posted.
- On an undivided highway, on any curve or near any hilltop where approaching drivers cannot see your vehicle from at least 500 feet in either direction.
- Anywhere the maneuver cannot be made safely or would interfere with other traffic. This catchall applies even in locations the statute doesn’t otherwise restrict.
“Mid-block” means any part of a street or highway other than an intersection, which makes the business-district and residence-district bans wide-reaching. If you’re between intersections in a commercial or residential area, assume no U-turn unless you’re on a divided road with a designated crossover.
Interstates and expressways aren’t named in the statute, but a U-turn on one would almost certainly violate the safety catchall. High-speed traffic makes a safe mid-highway reversal essentially impossible, and separate controlled-access rules bar driving onto or off those roads except through designated openings.
How to Make a Legal U-Turn
At an intersection, treat yourself the way the law treats a left-turning driver. Section 346.18(2) gives oncoming traffic the right of way, so you wait for a gap large enough that no one has to brake or swerve for you.2Wisconsin State Legislature. Wisconsin Code 346.18 – General Rules of Right-of-Way
Signal the same way you would for a left turn, and keep the signal on continuously for at least the last 100 feet before you begin. Cyclists and electric scooter riders get a shorter 50-foot minimum.3Wisconsin State Legislature. Wisconsin Code 346.34 – Turning Movements and Required Signals on Turning and Stopping Failing to signal is a separate violation that can be cited on top of the U-turn.
At a green light, U-turns are permitted unless a sign says otherwise. At a stop sign, come to a full stop first, then proceed only when the approach is clear.
What an Illegal U-Turn Costs
The base forfeiture is $20 to $40. Under Wisconsin’s uniform deposit schedule, first offenses carry a standard deposit of $30, and a second violation within a year doubles that to $60.4Wisconsin Court System. Uniform State Traffic Deposit Schedule A 26% penalty surcharge, jail surcharges, and court costs stack on top, so what you actually pay runs well above the base number.
Every conviction also adds three demerit points to your record. The Wisconsin Administrative Code classifies the offense as an “illegal turn” under Trans 101.02(4)(g).5Wisconsin State Legislature. Wisconsin Administrative Code Trans 101.02 – Point Schedule Three points from one ticket won’t suspend most drivers on its own, but Wisconsin suspends your license when you reach 12 or more points in any 12-month period, and the length of that suspension grows with the point total.6Wisconsin Department of Transportation. Wisconsin’s Point System Probationary license and permit holders face a six-month suspension at just 12 points. Commercial drivers should also keep in mind that violations can affect CDL standing through federal rules in addition to the state point system.
Local Signs Can Add More Restrictions
Wisconsin municipalities can add their own U-turn rules on top of state law. Cities often post “No U-Turn” signs at congested intersections near commercial districts, transit stops, and event venues. Some restrictions appear only as signage; others are written into municipal traffic codes, and a local violation can bring a separate fine on top of the state forfeiture.
Two takeaways follow. Watch for posted signs in any unfamiliar area. And don’t read the absence of a “No U-Turn” sign as a green light, because the statewide safety and right-of-way rules apply everywhere, and any U-turn that disrupts traffic is a violation on its own.