Unsafe Speed on Grade
Operating a vehicle at a speed exceeding the posted speed limit on a highway grade where a reduced speed limit has been established for safety.
This guide is for general educational purposes only and does not constitute legal advice. TicketClear is a self-help document preparation service — we are not attorneys and do not represent clients. Review all prepared documents carefully before submitting. Fine amounts are estimates and vary by county and surcharge schedule.
What is a Unsafe Speed on Grade ticket?
This violation occurs when you drive faster than a speed limit specifically posted for a downhill grade or steep descent. Mountain roads and steep hills often have lower speed limits than the surrounding highway because vehicles gain momentum going downhill, making it harder to stop safely.
A CVC 22413 ticket costs between $238 and $490 with fees, adds 1 point to your DMV record that stays for 3 years, and can increase your insurance rates by 15-25% annually. Multiple points can lead to license suspension.
One point from this violation typically raises insurance premiums by 15-25% for three years. If you complete traffic school, the point is masked from insurers, potentially saving you hundreds of dollars over time.
What the Law Says
No person shall drive a vehicle down any grade upon any highway at a speed in excess of the maximum speed limit established for that grade.
What the Officer Must Prove
- 1A grade speed limit was specifically established for that location
- 2The speed limit sign was properly posted and visible
- 3Your vehicle was traveling faster than the posted grade limit
- 4The speed was measured using an approved method
- 5The measurement device was properly calibrated
How Drivers Get This Ticket
A driver descends a mountain highway marked with a 35 mph grade speed limit while traveling 50 mph, and is cited by CHP using radar.
Ticket issued for exceeding the posted grade speed limit by 15 mph.
A truck driver uses a 6% grade descent posted at 25 mph while traveling 40 mph, causing brake overheating.
Cited under CVC 22413; the excessive speed on the grade created an unsafe condition.
A driver traveling downhill didn't see the grade speed limit sign because it was covered by overgrown vegetation.
Driver documented the obstructed sign with photos and successfully contested the ticket.
Common Defenses for Unsafe Speed on Grade
These are the defense arguments that appear most often in successful Trial by Written Declarations for this violation.
Speed limit sign was not visible
If the grade speed limit sign was obscured by vegetation, weather, or damage, you may argue you had no reasonable way to know a lower limit applied. Photograph the location showing the obstruction.
No specific grade speed limit was posted
CVC 22413 only applies where a specific grade speed limit is established and posted. If no grade-specific sign existed, this code doesn't apply to your situation.
Speed measurement was inaccurate
You can challenge whether the officer's radar or lidar was properly calibrated and whether the officer was trained and certified. Request calibration records through your declaration.
Emergency circumstances
If you were speeding down the grade due to brake failure or another emergency, this may serve as a defense. However, you must document the mechanical issue and show you acted reasonably.
How to Address This in Your Declaration
- ✓Photos showing missing, damaged, or obstructed grade speed limit signs
- ✓Photos of the roadway and grade conditions at the time
- ✓Evidence that no grade-specific speed limit was posted
- ✓Request for radar/lidar calibration and maintenance records
- ✓Request for officer's speed measurement training certification
- ✓Weather or road condition documentation
- ✓Witness statements about sign visibility
⚠️ What NOT to Do
- ✗Arguing that the regular speed limit should apply instead of the grade limit
- ✗Claiming you didn't realize you were on a steep grade
- ✗Admitting you were going fast because you were 'just going with the flow' of traffic
- ✗Failing to document sign visibility issues before they're corrected
- ✗Ignoring the ticket and missing your court deadline
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Frequently Asked Questions About Unsafe Speed on Grade
What's the difference between a grade speed limit and a regular speed limit?▼
A grade speed limit is a lower limit posted specifically for steep downhill sections where vehicles naturally gain speed and need more distance to stop. It applies only to that designated stretch of road.
Do grade speed limits apply to all vehicles equally?▼
Yes, but large trucks often have even lower posted limits on grades. Passenger vehicles must follow the posted grade limit for their vehicle class.
What if I was using engine braking and felt in control?▼
Feeling in control doesn't matter legally. If you exceeded the posted grade speed limit, the violation occurred regardless of your braking technique.
Can I fight this ticket if the officer didn't show me the radar reading?▼
Officers aren't required to show you the radar. However, you can request calibration records and challenge the measurement accuracy in your written declaration.
How do I know if a road has a grade speed limit?▼
Grade speed limits are posted on yellow warning signs or white regulatory signs at the top of steep descents. They often appear alongside percentage grade warnings like '6% Grade Next 5 Miles.'
Traffic School Option
Most drivers cited under CVC 22413 are eligible for traffic school if they haven't attended in the past 18 months. Completing traffic school masks the point from your insurance company, though you still pay the fine.
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This guide is for general educational purposes only and does not constitute legal advice. TicketClear is a self-help document preparation service — we are not attorneys and do not represent clients. Review all prepared documents carefully before submitting. Fine amounts are estimates and vary by county and surcharge schedule.