Where does Sierra Avenue run in Fontana?

Sierra Avenue runs north-south through central Fontana, from the I-10 freeway interchange in the south through Fontana's central commercial areas, up to the I-210 interchange in North Fontana and beyond. It is one of the busiest surface streets in the city.

What are the most dangerous Sierra Avenue intersections in Fontana?

The most accident-prone Sierra Avenue intersections include: Sierra Ave at I-10 (freeway interchange), Sierra Ave at Foothill Blvd, Sierra Ave at Arrow Route, Sierra Ave at Base Line Road, and Sierra Ave at I-210. These high-traffic intersections see hundreds of accidents annually.

My accident was at Sierra Ave and Foothill Blvd. Can I sue?

Yes. If another driver ran a red light, failed to yield, was speeding or distracted, you have a personal injury claim. Gonzales Law handles Sierra Avenue intersection accidents throughout Fontana. Call 1-888-232-2898 for a free consultation.

Sierra Avenue Accident Attorney — Fontana CA

Sierra Avenue Car Accident Lawyer

Hurt in an accident on Sierra Avenue in Fontana? From the I-10 interchange to I-210 and every major intersection in between — Gonzales Law Offices is YOUR local Sierra Ave accident attorney. $100M+ recovered. No fee unless we win.

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Sierra Avenue — Fontana's Most Dangerous Corridor

Sierra Avenue is one of the primary north-south arterials in Fontana, running from the I-10 Freeway interchange all the way through the city to North Fontana and the I-210 interchange. With high traffic volumes from residential neighborhoods, commercial strips, warehouses, and two freeway interchanges, Sierra Avenue is consistently among Fontana's highest-crash corridors.

Sierra Avenue Dangerous Intersections — Fontana

Intersection	Crash Type	Risk Level
Sierra Ave & I-10 Interchange (Exit 60)	Freeway merge/exit conflicts, rear-end, sideswipe	HIGH
Sierra Ave & Foothill Blvd	T-bone, red-light running, left-turn failures	HIGH
Sierra Ave & Arrow Route	Truck crossing conflicts, pedestrian risk	HIGH
Sierra Ave & Base Line Road	Left-turn accidents, failure to yield	HIGH
Sierra Ave & I-210 Interchange	Freeway on/off ramp conflicts	HIGH
Sierra Ave & Valley Blvd	Commercial district congestion, rear-end	MODERATE
Sierra Ave & Slover Ave	Industrial zone truck crossings	MODERATE

Why Sierra Avenue Accidents Happen

Red Light Running

Traffic Signal Violations

Sierra Avenue has numerous signalized intersections. Red-light running is a leading cause of T-bone (broadside) accidents at Sierra Avenue cross-streets — often resulting in severe injuries because the struck vehicle has no warning and no time to brake.

Truck Traffic

Warehouse & Industrial Access

Sierra Avenue provides access to multiple industrial parks and warehousing facilities near the I-10 corridor. Large commercial trucks making turns and crossing at high speeds create dangerous conditions for passenger vehicles and pedestrians.

Freeway Ramps

On/Off Ramp Conflicts

The I-10/Sierra Ave and I-210/Sierra Ave interchanges create significant acceleration/deceleration conflicts. Drivers entering or exiting the freeway frequently misjudge gaps in traffic, causing merge and sideswipe accidents.

Left Turns

Left-Turn Accident Risk

Left turns across multiple lanes of Sierra Avenue traffic are a frequent cause of accidents. Drivers misjudging oncoming vehicle speed — particularly motorcycles — frequently cause serious broadside and head-on accidents.

Sierra Avenue Case Results

Sierra Ave & Foothill

$895,000

Driver ran red light at Sierra Ave/Foothill Blvd, T-boning client. Hip fracture and surgery required. Settled before trial.

Sierra Ave & I-10

$620,000

Client rear-ended at I-10/Sierra Ave off-ramp. Neck and back injuries. Trucking company insurer settled at mediation.

Sierra Ave & Arrow

$375,000

Truck failed to yield at Sierra/Arrow intersection. Client's vehicle totaled. Soft tissue plus lost wages fully recovered.

* Results vary. Past outcomes do not guarantee future results.

Sierra Avenue Accident FAQs

Who handles accident reports on Sierra Avenue in Fontana? +

Surface street accidents on Sierra Avenue (not on the freeway itself) are handled by the Fontana Police Department, not CHP. Request a copy of the Fontana PD accident report. We can help you obtain it and analyze the fault determination.

The other driver ran a red light at Sierra Ave. How do I prove it? +

Key evidence includes: traffic camera footage (Fontana has red-light cameras at several intersections), witness statements, skid marks, the accident reconstruction in the police report, and potentially a private accident reconstruction expert. We collect and preserve this evidence immediately after you hire us.

I was injured as a pedestrian on Sierra Avenue. Do I have a case? +

Yes. Pedestrian knockdown cases on Sierra Avenue are among the most serious — and most valuable — personal injury claims. Drivers have a duty to yield to pedestrians in crosswalks. If a driver struck you on Sierra Avenue, you likely have a strong claim for medical bills, lost wages, and pain and suffering.

Can I sue the city if a Sierra Avenue traffic signal malfunction caused my accident? +

Potentially. The City of Fontana has a duty to maintain traffic signals and signage. If a malfunctioning signal contributed to your accident, you may have a government liability claim — but you MUST file a government tort claim within 6 months. Call us immediately.

Mark "The Shark" Gonzales — Sierra Avenue Accident Attorney

Mark Gonzales (CA Bar #249340) is based in Fontana and has handled hundreds of Sierra Avenue and Fontana intersection accident cases. He knows the local roads, the Fontana Police Department, the San Bernardino County courts, and the insurance companies that operate in this region. $100M+ recovered. No upfront fees. Free 24/7 consultation.

Call 1-888-232-2898