Road hazards and motorcycle riders

A defect a car passes over without the driver noticing can put a motorcycle down. Two wheels, a narrow contact patch, and a machine that depends on traction for balance — the same surface is a different road. This is general information, not legal advice.

The hazards that matter on two wheels

• Gravel and sand, particularly on a corner exit or at the mouth of a driveway.
• Longitudinal seams and joints that can catch and steer a front wheel.
• Metal grates and plates, especially wet, and steel plates over trenches with unramped edges.
• Potholes and edge breaks, which are an inconvenience in a car and a crash on a bike.
• Uneven repaving — a height difference between lanes during a resurfacing job.
• Spilled fluid, including diesel, which is slick and persistent.
• Painted surfaces and thermoplastic markings when wet.
• Debris and shed cargo, which points at whoever lost it.

Who is responsible

• The public entity that maintains the road — a city, a county, or the state for the highway system. The six-month claim route.
• A contractor doing roadworks, trenching, or paving, on ordinary negligence principles.
• Whoever created the hazard — a vehicle that shed a load or leaked fluid, a business that washed something into the road, a site that tracked gravel out onto the carriageway.
• An adjacent property owner, where their landscaping or activity produced it.

More than one can be responsible, and the contractor route is worth pursuing partly because it is not on the government clock.

The public entity claim

A public entity is liable for injury caused by a dangerous condition of its property where the plaintiff establishes that the property was in a dangerous condition at the time of the injury, that the injury was proximately caused by the condition, that the condition created a reasonably foreseeable risk of the kind of injury incurred, and either that a negligent act of an employee within the scope of employment created it, or that the entity had actual or constructive notice a sufficient time before the injury to have taken protective measures.

Notice is where these cases live. What establishes it: prior complaints and service requests, the entity's own inspection records and maintenance logs, prior collisions at the location, how long the defect had visibly existed, and work orders opened and not completed. Much of it is obtainable through public records requests, and the request should go early.

Design immunity is the recurring obstacle. An entity may be protected where the feature was part of a plan or design approved in advance by a body or employee with discretionary authority, and there is substantial evidence supporting its reasonableness. That is why it matters whether the hazard is a design feature or a maintenance failure — a pothole is not a design choice — and whether later crash history put the entity on notice that an approved design was not working in practice.

Sources: Gov. Code, § 835 (dangerous condition of public property); § 911.2 (six months to present a claim); § 945.6 (six months to sue after a written rejection).

What to preserve, immediately

Road defects get repaired, and a repaired defect is very hard to prove. The repair is also evidence the entity knew about it, but only if you documented what was there first.

• Photograph the defect with something for scale, from several angles, and photograph the whole approach.
• Record the exact location — GPS coordinates, nearest address, and the direction of travel.
• Photograph any signage or its absence.
• Note contractor names and permit numbers on any plates, cones, or boards.
• Go back within days and photograph again, to show whether it was repaired and when.
• Send a public records request for complaints, inspections, and work orders at that location.

Expect the argument that you should have avoided it

The defence in every one of these is that a reasonably attentive rider would have seen and avoided the hazard. Sometimes that is fair. Often it is not — a seam or a plate edge is not visible at speed, gravel on a corner exit appears after the decision to lean is made, and diesel is invisible until the front wheel is on it. The answer is the specific geometry: sight lines, approach speed, lighting, and what was actually perceptible from where the rider was.

Comparative fault · bias against riders.

Common questions

Can I claim against a city for a pothole that put me down?

Possibly. A public entity can be liable for injury caused by a dangerous condition of its property where the condition created a reasonably foreseeable risk of that kind of injury, and either an employee created it or the entity had notice long enough beforehand to have protected against it (Gov. Code, § 835). Notice is usually the battleground.

How fast do I have to act?

Very. A claim for personal injury against a public entity must be presented within six months of accrual, not two years. Missing that generally ends the claim unless a late-claim application succeeds. It is the most common way these claims are lost.

What is design immunity?

A defence that can protect a public entity where the feature was part of a design approved in advance by someone with discretionary authority and there is substantial evidence supporting its reasonableness. It is why these cases often turn on whether the problem is a design choice or a maintenance failure.

What if a private contractor left the hazard?

Then there may be a claim against the contractor as well, on ordinary negligence principles and without the six-month claim deadline. Roadworks, utility trenching, and paving contractors are worth identifying early — the plates and signage at the site usually name them.