Work Zone Crashes on Riverside County Freeways

What the law requires of drivers

Caltrans, cities, the County and their contractors may close lanes and redirect traffic around road work, and it is unlawful to disobey the flaggers, signs, lights and devices they use (Vehicle Code § 21367). In a highway construction or maintenance area, listed violations such as speeding, unsafe lane changes, failing to yield and DUI carry a doubled fine in misdemeanor cases and a fine one category higher for infractions (Vehicle Code § 42009).

The DMV handbook summarizes it for drivers:

Traffic fines in a work zone can be $1,000 or more, and fines are doubled in highway construction or maintenance zones when workers are present. [source]
Some roads are designated Safety Enhanced-Double Fine Zones because of increased collision injuries and deaths. [source]
In a work zone, slow down, expect sudden slowing or stopping, merge as soon as it is safe without crossing cones or drums, and obey flaggers. [source]

Separately, drivers approaching a stopped emergency vehicle, tow truck, highway maintenance vehicle or any vehicle with hazard lights, cones or flares must move over a lane or slow to a safe speed (Vehicle Code § 21809).

Where work zones are now

These are projects the agencies themselves list. Closures and lane shifts change often; check Caltrans QuickMap or the project page before you drive.

Caltrans District 8 current projects in Riverside County

I-10 Blythe Pavement Rehabilitation [source]
I-15 Auxiliary Lane in Temecula [source]
I-15 Deceleration Lane in Corona [source]
SR-79 Shoulder Widening Safety Project near Aguanga [source]
SR-91 Culvert Replacement Project in Corona [source]

RCTC projects listed as under construction

I-15 Smart Freeway Pilot Project [source]
Riverside County Metrolink Station Improvements [source]
Perris-South Metrolink Station and Layover Facility [source]
Mid County Parkway (Ramona Expressway) [source]
SR-60 / Potrero Boulevard Interchange Phase II [source]

Crashes caused by other drivers in a work zone

Work zone crashes often involve rear-end collisions in slowing traffic and sideswipes where lanes narrow or shift. The usual rules decide fault: following distance (Vehicle Code § 21703) and speed safe for conditions (Vehicle Code § 22350). A citation for a work zone violation can be useful evidence.

Crashes caused by the work zone itself

Sometimes the setup is the problem: a lane shift with no warning, a steep pavement edge, missing or confusing signs, a lane closure that begins just past a curve, or equipment left in a live lane. California law can hold a public entity liable for a dangerous condition of its property when its employee created the condition or it had notice in time to fix it (Gov. Code § 835). A dangerous condition means a substantial risk of injury to people using the road with due care (Gov. Code § 830). A private contractor that set up the work zone may also be responsible.

Claims against Caltrans, the County, a city or RCTC generally must be filed within six months (Gov. Code § 911.2). See claims against the State and Caltrans and claims against the County.

Evidence

Photos and video of the signs, cones, lane shifts and pavement as they were at the time, since work zones change daily
The project name and the contractor on site
The crash report and witness names (crash report guide)

Every fact on this page links to the official source it came from. We checked each one in September 2026. Agencies change fees and procedures, so confirm with the agency before you go. How we research.

Common questions

Are fines really doubled in a construction zone?

For listed offenses committed in a highway construction or maintenance area while traffic is restricted or work is being performed, the fine is doubled in misdemeanor cases and raised one category for infractions (Vehicle Code § 42009).

Can I sue Caltrans if confusing construction signs caused my crash?

Possibly, if the setup was a dangerous condition that Caltrans created or knew about in time to fix (Gov. Code § 835). A written claim generally must come first, within six months.

The contractor, not Caltrans, set up the lane closure. Who is responsible?

Both may be. The contractor can be responsible for its own negligence, and the public agency can be responsible for conditions on its road. Identify the contractor early.

Work zone crashes on Riverside County roads