Maldonado-Velasquez v. Ron J Peterson Construction

CourtUtah Supreme Court
DecidedApril 16, 2026
DocketCase No. 20230912
StatusPublished

This text of Maldonado-Velasquez v. Ron J Peterson Construction (Maldonado-Velasquez v. Ron J Peterson Construction) is published on Counsel Stack Legal Research, covering Utah Supreme Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Maldonado-Velasquez v. Ron J Peterson Construction, (Utah 2026).

Opinion

This opinion is subject to revision before final publication in the Pacific Reporter

2026 UT 8

IN THE

SUPREME COURT OF THE STATE OF UTAH

YESNEIRI MALDONADO-VELASQUEZ, Appellant, v. RON J. PETERSON CONSTRUCTION, INC., Appellee,

No. 20230912 Heard December 8, 2025 Filed April 16, 2026*

On Direct Appeal

Third District Court, Summit County The Honorable Richard E. Mrazik No. 170500237

Attorneys: Rodger M. Burge, Dick J. Baldwin, Steven R. Glauser, Daniel S. Sorenson, Salt Lake City, Joseph Jardine, Farmington, for appellant Vincent J. Velardo, Thomas J. Rollins, Salt Lake City, for appellee

JUSTICE NIELSEN authored the opinion of the Court, in which CHIEF JUSTICE DURRANT, JUSTICE PETERSEN, JUSTICE HAGEN, and ASSOCIATE CHIEF JUSTICE POHLMAN joined.

__________________________________________________________ * As of January 31, 2026, “The Supreme Court consists of seven justices.” UTAH CODE § 78A-3-101(1). Pursuant to Utah Supreme Court Standing Order No. 18, this court sat and rendered judgment in this matter as a division of five justices. MALDONADO-VELASQUEZ v. RON J. PETERSON CONSTRUCTION, INC. Opinion of the Court

JUSTICE NIELSEN, opinion of the Court: INTRODUCTION ¶1 Raul Lopez was driving down Parley’s Canyon with Emilio Martinez-Arroyo in the passenger seat of his Volkswagen Jetta. Lopez crashed into the back of a utility trailer hauling construction equipment, sliding underneath it in what’s called an “underride crash.” Both Lopez and Martinez-Arroyo died instantly. ¶2 The trailer and the truck pulling it were owned by Ron J. Peterson Construction, Inc. (RJP). Martinez-Arroyo’s wife, Yesneiri Maldonado-Velasquez, sued RJP for her husband’s death. She claimed that RJP was negligent both for causing the crash in the first place and for using a kind of trailer that increased the likelihood of injuries. She proposed calling an expert to discuss various underride guards and how they might have reduced the extent of injury—what is often called an “enhanced-injury” claim. ¶3 RJP moved for summary judgment, arguing that Lopez indisputably caused the crash and that it had no duty to upgrade a trailer that met federal safety guidelines. The district court denied summary judgment on the cause of the crash but granted it on the enhanced-injury claim for lack of duty. ¶4 In a line of cases beginning with B.R. ex rel. Jeffs v. West, 2012 UT 11, 275 P.3d 228, we have outlined several principles of duty, two of which are relevant here. First, duties are broad and general to classes of cases, not narrow and specific to particular facts. Second, when an applicable, broad duty exists in statute or common law, courts should not use the factors outlined in Jeffs. Rather, courts should use those factors only to determine whether the law should recognize a new duty. ¶5 The district court acknowledged that RJP had a general common-law duty, codified in statute, to operate equipment safely on the roadway. But despite acknowledging that a broad duty existed, it followed RJP’s lead and defined the duty more narrowly: a duty to alter the trailer. It then used the Jeffs factors to consider and reject this duty. This ruling led it to exclude much of Maldonado-Velasquez’s proposed expert testimony about the trailer. A jury later found RJP at no fault for the crash. Maldonado- Velasquez now appeals the district court’s partial grant of summary judgment and subsequent evidentiary rulings based upon that decision.

2 Cite as: 2026 UT 8 Opinion of the Court

¶6 We reverse. The district court erred in two respects. First, it used Jeffs to negate an applicable statutory duty. Second, this incorrect duty analysis led it to improperly exclude much of Maldonado-Velasquez’s expert testimony on enhanced injury. BACKGROUND 1 ¶7 One afternoon, Andrew Davis was driving his work truck down I-80 from Summit County to Salt Lake County. He was pulling a trailer carrying a large forklift belonging to his employer, RJP. He was driving in the far-right lane, going about twenty-five mph with his emergency flashers on. The posted speed limit was sixty-five miles per hour. The weather was clear and the road was dry. ¶8 In his rear-view mirror, Davis noticed a black car coming up behind him. The black car then switched lanes, and a white car suddenly appeared behind it. ¶9 The white car was a Volkswagen Jetta driven by Raul Lopez. In the passenger seat next to him was Emilio Martinez- Arroyo. The moment the black car changed lanes, Lopez—then traveling at about sixty miles per hour—hit the trailer squarely from behind. The Jetta’s driver, whose view of the trailer would have been obstructed by the black car until that last moment, made no attempt to brake or avoid the collision. The trailer’s edge impacted the top of the Jetta’s passenger compartment and the remainder of the Jetta slid underneath the trailer, as pictured below. The trailer had no underride protection on it. Lopez and Martinez-Arroyo were killed on impact. ¶10 Martinez-Arroyo’s wife, Yesneiri Maldonado-Velasquez, sued RJP for negligence, alleging that RJP breached its duty of care by (1) not having underride protection on the trailer and (2) operating the truck and trailer in an unreasonable manner. To support the first claim, she proposed calling Byron Bloch (Expert),

__________________________________________________________ 1 This case comes to us after a jury trial, but the relevant ruling

for appeal was on RJP’s pretrial summary judgment motion. Given this posture, we recite the facts and reasonable inferences in the light most favorable to Maldonado-Velasquez at the time of that motion. Penunuri v. Sundance Partners, Ltd., 2017 UT 54, n.5, 423 P.3d 1150.

3 MALDONADO-VELASQUEZ v. RON J. PETERSON CONSTRUCTION, INC. Opinion of the Court

who would testify about the dangers of underride and means to prevent it. 2

¶11 RJP moved for summary judgment, arguing that (1) the relevant duty—one to upgrade the trailer beyond minimum federal safety standards—did not exist and (2) the undisputed evidence showed that Lopez was fully at fault for the accident. On the first point, the district court acknowledged that there was a statutory duty in Utah to not operate vehicles in an unsafe condition. See UTAH CODE § 41-6a-1601(1)(a)(i) (“A person may not operate or move and an owner may not cause or knowingly permit to be operated or moved on a highway a vehicle or combination of vehicles that . . . is in an unsafe condition that may endanger any person.”). But it concluded that this duty was limited by another section of the code stating that federal motor vehicle safety regulations “supercede any conflicting provisions” of the Utah traffic code “pertaining to commercial motor carriers.” Id. § 41-6a- 206; see also id. § 41-6a-1601(6)(a)(i) (similar). And both parties— eventually—agreed that the trailer met the federal standards.

__________________________________________________________ 2 Maldonado-Velasquez also sued the utility trailer’s manufacturer—the aptly named Utility Trailer Manufacturing Company—for products liability and negligence. The parties stipulated to dismissing those claims, which the district court did. Maldonado-Velasquez then substituted Twamco Trailer Manufacturing Co., Inc. for Utility. When Twamco failed to respond to the complaint, the district court entered default against it. Those rulings are not before us.

4 Cite as: 2026 UT 8 Opinion of the Court

¶12 Maldonado-Velasquez responded that compliance with federal safety standards did not preclude the statutory and common-law duties. RJP countered that Maldonado-Velasquez’s argument simply repackaged a products liability claim for enhanced injury as a negligence claim. RJP relatedly moved to exclude Expert’s testimony on underride dangers and injury prevention. ¶13 The district court granted RJP’s motions in part.

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