Can you pass a plow in Colorado?
Yes. You may pass a snowplow in Colorado when it is safe to do so, but you should slow down, stay well back, and pass on the left only if conditions permit; never pass on the right while the plow is actively plowing or the blade is in your lane.
Snowplows are a common sight on Colorado highways during winter storms, and drivers must exercise caution around road maintenance crews. State guidance emphasizes reducing speed, increasing following distance, and complying with “move over” laws so that plow operators can work safely. For the exact rules, consult official Colorado Department of Transportation (CDOT) resources and the state's driver handbook, as practices can vary by traffic conditions and location.
Passing around snowplows: the rules
Key obligations drivers should follow when encountering a snowplow on Colorado roads.
Key obligations
- Slow significantly and increase following distance when you see a plow approaching or nearby.
- Move over a lane if it is safe to do so; if a move over cannot be safely made, slow down and proceed with caution.
- Pass on the left only when there is a clear, safe gap in traffic and you can see the plow’s blade and lights in your mirror; avoid passing on the right.
- Do not pass a plow that is actively plowing, spraying snow, or with its blade extended into your lane.
- Use your turn signal early and avoid abrupt lane changes.
- Return to the lane only when you can see the plow behind you in your rearview mirror and there is ample space.
- Be mindful of spray and snow that can reduce visibility for both you and the operator.
Observing these obligations helps protect plow crews and keeps roadways safer during winter conditions.
Safe passing guidelines
Before you pass a plow, consider these steps to minimize risk.
- Check for oncoming traffic and ensure there is a safe gap in the opposing lane before passing.
- Maintain a generous following distance behind the plow to avoid spray and ice spray from impeding visibility.
- Signal early and merge smoothly; avoid sudden braking or acceleration.
- Never pass on the right; plows and their spreaders can create hazardous conditions on that side.
- Do not pass if visibility is poor or road conditions are deteriorating, even if a gap appears available.
- Return to your lane only when you can clearly see the plow in your rearview mirror or you are well ahead of its path.
- Be alert to ice patches, uneven shoulders, and the plow’s movements as it shifts to cover multiple lanes.
Following these steps helps ensure safe and compliant passing around snowplows during Colorado winters.
Common mistakes to avoid
Avoid these errors that commonly put plow operators and motorists at risk.
- Tailgating the plow or following too closely.
- Trying to pass while the plow is actively plowing or spreading material.
- Passing on the right or in a no-passing zone.
- Not reducing speed or maintaining a safe following distance in winter conditions.
- Disregarding the Move Over Law when a maintenance vehicle is stopped or working on the roadside.
- Cutting back in front of the plow too soon after passing.
- Distracted driving or failing to use signals near plows.
Avoiding these mistakes reduces risk to both drivers and snowplow crews and helps winter travel stay on track.
Where to learn more
For the exact statutory language and official guidance, consult the Colorado Department of Transportation (CDOT) resources and the Colorado Driver Handbook. These materials cover Move Over requirements and snowplow safety recommendations that apply on state highways and local roads.
Summary
In Colorado, passing a snowplow is allowed when done safely and legally. Drivers should slow down, maintain ample distance, and pass on the left when clear, while obeying move-over rules and staying vigilant to changing road and weather conditions. Always refer to official CDOT and DMV guidance for the latest rules and best practices.
Are you allowed to overtake a snowplow?
Snowplow operators often work in times of poor visibility. If you are following too close, you could be driving blind and passing them is often extremely dangerous. Drivers must not pass a snowplow when: the view along the side of the snowplow is obstructed.
Are you allowed to pass plow trucks?
The law was created to protect snowplow drivers and to prevent crashes, which can be dangerous and leave fewer plows available to clear snow. Here are some other tips for driving safely near snowplows: Slow down, Don't pass a snowplow on the right, and Pass on the left with extreme caution.
Can you pass a snowplow on the left?
Side by side don't try to pass. Even if it looks like there's face. And finally if the plow is in the left lane. And blowing snow to the left you can pass on the right.
Should you pass a snow plow?
Be patient and keep a safe distance behind working snow plows. Never pass a snow plow or drive beside one.
