In Iowa, as of 2025, drivers are generally permitted to make a right turn at a red traffic signal unless specifically prohibited by signage at the intersection. This rule is outlined in Iowa Code Section 321.257, which governs official traffic-control signals and their operation.
Key Requirements for Turning Right on Red
- Complete Stop Required: Before making a right turn on red, drivers must come to a complete stop at the designated stop line, or if there is none, before entering the crosswalk or intersection.
- Yielding is Mandatory: After stopping, drivers must yield the right-of-way to all pedestrians and vehicles lawfully within the intersection or crosswalk.
- No Turn if Prohibited: If there is a posted sign indicating “No Turn on Red,” drivers must obey and remain stopped until the light turns green.
How to Make a Right Turn on Red Safely
- Approach the intersection in the right-most lane, as close as practicable to the right curb or edge of the roadway.
- Stop completely at the marked stop line or before the crosswalk/intersection.
- Check for signs prohibiting right turns on red. If such a sign is present, do not turn.
- Yield to pedestrians and all cross traffic. Only proceed if the way is clear and your turn will not interfere with others.
- Make the turn in a careful manner, ensuring it does not endanger other road users.
Exceptions and Local Variations
- Some intersections have signs specifically prohibiting right turns on red. These must be obeyed, and local authorities have the power to designate such restrictions as needed.
- Cities may use automated traffic enforcement cameras to monitor compliance. Violations, such as failing to stop completely before turning, may result in tickets.
- Local rules or temporary signage can override the general right-turn-on-red allowance, so always check for posted instructions at each intersection.
Liability and Enforcement
- If a driver makes a right turn on red without stopping, fails to yield, or disobeys posted signs, they can be held liable for any resulting accidents or citations.
- Pedestrians also have responsibilities; for example, they should not enter the crosswalk against a red signal or “Don’t Walk” indicator.
- Additional penalties may apply if a violation results in serious injury or death.
Recent Updates for 2025
While the core rules for right turns on red remain consistent, ongoing updates to administrative rules and local enforcement practices may affect how the law is applied in specific areas. The Iowa Department of Transportation periodically reviews and updates traffic rules, so drivers should stay informed about changes in their locality.
Right Turn on Red in Iowa (2025)
| Requirement | Rule |
|---|---|
| Stop First | Must come to a complete stop before the line/crosswalk/intersection |
| Yield | Must yield to pedestrians and vehicles in the intersection |
| Sign Prohibitions | Obey “No Turn on Red” signs-no turn allowed if posted |
| Lane Position | Turn from right-most lane, close to curb/edge |
| Local/Temporary Restrictions | Local authorities can set additional restrictions |
If you have questions about a specific intersection or want to know more about recent changes in your city, feel free to ask!
Sources:
- https://www.legis.iowa.gov/docs/code/321.257.pdf
- https://www.legis.iowa.gov/docs/code/321.311.pdf
- https://jsberrylaw.com/faqs/iowa-road-laws-liability-in-right-turn-auto-accidents/
- https://iowadot.gov/transportation-development/government-community-relations/administrative-rules/2025-rule-schedule
- https://www.cityofmarion.org/government/police-department/automated-traffic-enforcement
