A commercial truck struck your vehicle in a construction zone near downtown Salt Lake City. Signs warned drivers: “Work Zone Ahead,” “Reduced Speed 45 MPH,” “Fines Doubled,” “Workers Present.” The truck driver ignored them all.
Now you’re facing serious injuries and mounting bills, and you’re wondering: do those “enhanced penalties” help your injury case? The simple answer is yes. Utah’s construction zone laws create powerful legal tools for injury victims through a concept called “negligence per se.”
Parker & McConkie Injury Lawyers represents victims injured in construction zone truck accidents throughout Salt Lake County. Our office at 466 S 500 E, Suite 100 in Salt Lake serves clients navigating these complex liability questions. Call (801) 851-1202 or visit our contact page for a free consultation.

Key Takeaways for Construction Zone Truck Accidents
- Utah Code § 41-6a-209 doubles fines for traffic violations in designated work zones when statutory conditions are met.
- Construction zone violations may establish “negligence per se,” which proves the breach element of negligence if the violation caused harm to a protected class.
- Traffic citations can provide persuasive evidence in injury lawsuits.
- Multiple parties might share liability, including the truck driver, trucking company, and potentially UDOT if signage was inadequate.
- Construction workers receiving workers’ compensation may still pursue separate claims against negligent truck drivers.
Utah’s Construction Zone Enhanced Penalty Law
Utah Code § 41-6a-209 establishes enhanced penalties for traffic violations in construction zones. When drivers commit violations in designated work zones and the statutory conditions are met, fines are doubled. These enhanced penalties apply when proper signage is in place and workers are present or during periods of active construction operations.
Enhanced penalties apply throughout the designated work zone area. Construction zone boundaries are marked with signs indicating where the work zone begins and ends. Utah law imposes these enhanced penalties because construction zones create heightened danger for both workers and motorists.
How Enhanced Penalties Strengthen Your Injury Claim
Criminal penalties and civil liability operate in separate legal systems, but they connect in meaningful ways. When a truck driver receives a citation for violating construction zone laws, that citation becomes evidence in your injury lawsuit.
The citation shows that law enforcement determined the driver violated construction zone statutes. This documented violation helps establish fault in your civil claim. The fact that Utah law doubles penalties demonstrates the seriousness of the conduct. Juries understand construction zone violations intuitively—signs warning of doubled fines appear throughout work zones.
Negligence Per Se: Proving Breach in Construction Zones
Negligence per se is a legal doctrine that transforms statutory violations into proof of breach. When a defendant violates a safety statute designed to protect a class of persons, and that violation causes injury to a member of the protected class, Utah law establishes that the defendant breached their duty of care.
To establish negligence per se in a construction zone truck accident case, you must prove four elements:
- The truck driver violated a statute or regulation designed to protect a specific class of persons from harm, such as construction zone speed limits or work zone traffic control requirements.
- You are a member of the protected class that the statute was designed to safeguard, whether you were a construction worker, passenger vehicle occupant, or pedestrian in the work zone.
- The truck driver’s violation caused the type of harm the statute was designed to prevent, such as a collision resulting from excessive speed in a reduced-speed work zone.
- You suffered actual physical injury or property damage as a direct result of the truck driver’s statutory violation.
You still must prove causation and damages, and the truck driver may raise defenses, including limited excuses recognized under Utah law, such as impossibility or sudden emergency.
Why This Strengthens Your Case
Without negligence per se, you must prove the truck driver breached their duty of care. With negligence per se, the statutory violation establishes the breach element if proven. The violation demonstrates unreasonable conduct.
This distinction matters enormously. Trucking companies vigorously defend against negligence claims, disputing whether their drivers acted reasonably. Negligence per se narrows disputes about breach; comparative fault may still reduce recovery, depending on the facts.
Common Truck Violations in Salt Lake Construction Zones
Speeding in reduced speed work zones is the most common violation. I-15 typically allows 70 mph speeds, but construction zones reduce limits to 45 or 55 mph. Electronic Control Module data from commercial trucks records second-by-second speeds and braking, providing objective evidence.
Following too closely becomes particularly dangerous in construction zones where traffic may stop suddenly. Trucks traveling at highway speeds behind stopped traffic cannot stop in time. Utah Code § 41-6a-711 requires drivers to maintain safe following distances.
Illegal lane changes in work zones may cause side-swipe collisions. Failure to yield to flaggers endangers construction workers directly. Distracted driving near workers shows particular disregard for safety.
I-15 Construction Zone Dangers in Salt Lake City
Interstate 15 through Salt Lake City operates under near-constant construction. UDOT has a range of ongoing projects that create miles of active work zones where commercial trucks mix with passenger vehicles in confined spaces.
Work zones reduce I-15 from four or five lanes to two or three lanes in each direction. This lane reduction forces merging while simultaneously reducing speed limits to 45 or 55 mph. Trucks that fail to slow create dangerous speed differentials.
Who Might Be Liable in Construction Zone Truck Accidents
The truck driver who violated construction zone laws bears primary liability. The trucking company employing the driver faces vicarious liability when drivers act within the scope of employment. Companies also face direct negligence claims for inadequate driver training on work zone safety and pressuring drivers to maintain schedules despite construction delays.
UDOT faces potential liability when work zone design or signage proves inadequate. However, Utah Code § 63G-7-201 protects government entities through governmental immunity. The “dangerous condition” exception under Utah Code § 63G-7-301 may allow claims when property conditions create unreasonable risks.
Claims against UDOT require filing a notice of claim within one year under Utah Code § 63G-7-402. Service must follow the statute’s requirements for the entity. Private contractors who design or implement work zone traffic control face liability without governmental immunity protection.
Construction Workers Hit by Trucks: Your Rights Beyond Workers’ Compensation
Construction workers injured by trucks in work zones face unique legal situations. Workers’ compensation covers medical expenses and a portion of lost wages, but Utah law allows injured workers to pursue separate claims against negligent third parties.
Workers’ compensation operates as the exclusive remedy against your employer. However, the truck driver and trucking company are third parties, and you may pursue full compensation from them. A third-party claim pursues complete wage loss, future earning capacity, pain and suffering, and all medical expenses, including future care needs.
Your workers’ compensation carrier maintains a subrogation interest and may seek reimbursement from your third-party settlement. Your attorney negotiates this reimbursement to increase your net recovery.
Evidence Critical to Construction Zone Accident Claims
Key evidence should be gathered immediately: citations, signage photos, the traffic control plan, ECM/EDR and ELD data, dash-cam or telematics records, and eyewitness statements.
Gather and preserve the following evidence immediately after a construction zone truck accident:
- The traffic citation issued to the truck driver documenting the specific violation and construction zone location.
- Photographs of all work zone signage including advance warning signs, reduced speed limit postings, “Fines Doubled” warnings, and “Workers Present” notices taken from multiple angles showing placement and visibility.
- A work zone traffic control plan obtained through your attorney showing official sign placement, spacing requirements, advance warning distances, and approved speed reductions for the specific project.
- Electronic Control Module or Event Data Recorder data from the commercial truck capturing second-by-second speed, braking force, throttle position, and other pre-crash parameters that prove the driver’s actions in the moments before impact.
- Electronic Logging Device records showing the truck’s GPS-stamped location, timing through the construction zone, and hours-of-service status that may reveal driver fatigue or schedule pressure.
- Contact information and statements from eyewitnesses, including other motorists, construction workers who observed the truck’s speed or driving behavior, flaggers who interacted with the driver, and any passengers in your vehicle or the truck.
This evidence must be gathered quickly before it disappears or becomes unavailable.
Comparative Negligence Defenses in Work Zones
Under Utah Code § 78B-5-818, you cannot recover if your fault reaches or exceeds 50%. Defendants attempt to shift fault by arguing you stopped suddenly, changed lanes unsafely, or were driving distracted.
Negligence per se narrows disputes about breach; comparative fault may still reduce recovery depending on the facts. Construction zone statutes exist specifically to protect workers and motorists from negligent drivers.

FAQ for Construction Zone Truck Accidents in Utah
What Happens If the Truck Driver Claims a Confusing Work Zone Layout Caused the Accident?
Truck drivers sometimes argue that confusing work zone design contributed to accidents, attempting to shift blame to UDOT or contractors. However, this defense rarely eliminates driver liability. Drivers are required to obey posted signs and exercise extra caution in construction zones regardless of layout complexity.
Professional truck drivers must navigate challenging conditions safely. If work zone design was genuinely confusing or dangerous, you might pursue claims against both the truck driver for violating posted warnings and UDOT for inadequate design—creating multiple sources of compensation rather than eliminating the driver’s fault.
How Quickly Must I Preserve Electronic Evidence After a Construction Zone Truck Accident?
Immediately. Carriers must retain Electronic Logging Device hours-of-service records and supporting documents for six months under 49 CFR § 395.8(k)(1), but Electronic Control Module data may be overwritten within weeks or even days depending on the truck’s mileage and system capacity. Your attorney must send preservation letters to the trucking carrier, owner-operator, and leasing company within days of the accident.
If the work zone involves a prime contractor managing traffic control, preservation demands should also go to that contractor for traffic control plans, daily logs showing worker presence, and any video surveillance. Waiting even a few weeks can result in permanent loss of the most critical speed and braking data that proves the violation.
Can I Recover Compensation If I Was Also Cited for a Traffic Violation in the Construction Zone?
Yes, you may still recover under Utah’s comparative negligence rule as long as your fault remains below 50%. For example, if you were cited for an improper lane change but the truck driver was cited for speeding 20 mph over the construction zone limit and following too closely, the truck driver likely bears greater fault. Your citation affects the percentage of damages you recover rather than eliminating your claim entirely. If you are found 30% at fault, you recover 70% of your damages. The truck driver’s construction zone violation—which establishes negligence per se—demonstrates serious misconduct that typically outweighs minor violations by other motorists.
Do Enhanced Penalties Apply at Night When No Workers Are Visibly Present?
Often they do. Enhanced penalties apply when statutory conditions are met, including proper signage and, as applicable, workers present or active operations. Many UDOT projects run at night to minimize traffic disruption. Signs indicating “Work Zone” and posted construction hours establish when enhanced penalties apply. The statute protects workers who might be behind barriers, in equipment, or intermittently away from the immediate roadway.
Truck drivers cannot argue they shouldn’t slow down because they didn’t see workers at a particular moment—the posted work zone boundaries and reduced speed limits control when the statutory conditions are satisfied.
How Long After a Construction Project Ends Can I Still Use Work Zone Violations in My Case?
Your ability to use construction zone violations depends on when the accident occurred, not when you file your lawsuit. If the accident happened while the work zone was active with proper signage, negligence per se applies even if UDOT later completed the project and removed signs. This is why immediately photographing work zone signage and obtaining the traffic control plan matters—these documents preserve evidence of conditions at the time of your accident. The four-year statute of limitations under Utah Code § 78B-2-307 allows you to file suit years after the accident, but evidence must be gathered immediately while the work zone configuration remains unchanged.
Pursuing Compensation After Construction Zone Truck Accidents
Construction zone truck accidents create clear paths to compensation through Utah’s enhanced penalty laws and negligence per se doctrine. When truck drivers violate Utah Code § 41-6a-209, they demonstrate disregard for laws designed to protect construction zone workers and motorists.
Parker & McConkie Injury Lawyers represents victims injured when truck drivers ignore construction zone warnings throughout Salt Lake County. We gather evidence including traffic citations, work zone signage documentation, Electronic Control Module data, and traffic control plans. We handle construction zone truck accident cases on a contingency fee basis—you pay no attorney fees unless we recover compensation for you. Case costs might apply.
Call (801) 851-1202 or visit our office at 466 S 500 E, Suite 100 in Salt Lake for a free consultation. Construction zones change rapidly, and evidence must be preserved immediately.
