Tenaris Bay City Inc. v. Ricky Ellisor, et al., 23-0808, May 23, 2025.
On appeal from Court of Appeals for the Fourteenth District of Texas
Synopsis
The Supreme Court of Texas reversed and rendered for the defendant, holding the plaintiffs failed to produce legally sufficient evidence that Tenaris’s facility was the but‑for cause of flood damage during Hurricane Harvey because their expert did not perform the necessary, house‑specific causation analysis and expressly declined to draw that conclusion. The decision emphasizes that in catastrophic‑rain events, plaintiffs must produce reliable proof that their particular injuries would not have occurred but for the defendant’s conduct.
Relevance to Family Law
Although a commercial flooding dispute, the ruling has direct implications for family‑law practitioners who litigate property division, reimbursement claims, insurance subrogation, and emergency repair disputes. When marital or community assets suffer disaster damage, claimants must present expert proof that ties the damage to a particular tortfeasor (or excludes natural causes) with the same level of specificity the Supreme Court requires here. The opinion also bears on settlement leverage, valuation of damaged community property, and allocation of repair costs when causation is contested — and it reinforces the need to preserve and develop expert testimony for appellate review in family cases involving property loss or third‑party tort claims.
Case Summary
Fact Summary
A group of homeowners in Matagorda County sued Tenaris (and its designers) after Hurricane Harvey flooded thirty homes. Tenaris built a pipe fabrication plant on former sod farm land and installed engineered drainage features (detention ponds and berms), approved by local authorities and designed by Fluor with review by Jones & Carter. Harvey was an extraordinary rainfall event that caused widespread flooding across southeast Texas. Plaintiffs alleged Tenaris’s drainage design and berming redirected flow or otherwise caused localized flooding to their homes. The plaintiffs proceeded to trial on liability only in three zones; a jury found Tenaris liable and awarded approximately $2.8 million. Plaintiffs relied primarily on civil‑engineer Gabriel Novak for causation testimony. Novak criticized the drainage design choices but acknowledged he had not performed the house‑specific scientific analyses that would be necessary to conclude the homes would not have flooded but for Tenaris’s actions.
Issues Decided
- Whether the plaintiffs produced legally sufficient evidence that Tenaris’s facility was the but‑for cause of the flooding to their homes during Hurricane Harvey.
- Whether the plaintiffs’ expert testimony met the required proof of causation (both but‑for and substantial‑factor components) for negligence claims in the context of catastrophic storm events.
- Whether the appellate and trial courts erred in affirming or entering judgment for the plaintiffs given the expert’s admissions.
Rules Applied
The Court applied Texas negligence law: duty, breach, and damages proximately caused by the breach. For proximate cause it reiterated cause‑in‑fact’s two components — but‑for causation and substantial‑factor causation — and the necessity of proving both. The opinion cites established Texas authority emphasizing that cause‑in‑fact requires a but‑for showing (e.g., Pediatrics Cool Care v. Thompson; Rogers v. Zanetti; IHS Cedars; Gunn v. McCoy; Rodriguez‑Escobar v. Goss) and that failure to prove but‑for causation is legally fatal to recovery. The jury charge in the case correctly tracked these standards; the dispute was whether the evidence sustained them.
Application
The Court framed the legal story around the natural default explanation for Harvey‑era flooding: the storm itself. Given the widespread, historic nature of the rainfall, the plaintiffs bore the burden of proving that this set of twenty‑first‑century homes flooded because of the defendant’s design choices rather than because of the extraordinary storm. The plaintiffs’ primary expert criticized components of the facility’s drainage plan but repeatedly conceded he had not conducted the specific hydrologic, topographic, or modeling analyses that would be necessary to conclude that any particular house would not have flooded but for the facility. The Court stressed that an expert’s general criticism of design, absent affirmative, house‑level causation analysis, cannot supply the missing but‑for link. Because the expert declined to make the necessary causal linkage and the record lacked other evidence establishing but‑for causation, the Court concluded the evidence was legally insufficient and rendered judgment for Tenaris.
Holding
The Supreme Court held that the plaintiffs failed to carry their burden of proving but‑for causation: while the expert identified problematic design choices, he did not perform (and would not opine based on) the necessary scientific analyses to show the plaintiffs’ homes would not have flooded but for Tenaris’s actions. Consequently, the Court reversed the judgments of the lower courts and rendered judgment for Tenaris. The Court reaffirmed that in negligence cases involving extraordinary natural events, plaintiffs must present reliable, case‑specific causation proof — both substantial factor and but‑for — to recover.
Practical Application
Family‑law practitioners should treat this decision as a cautionary precedent when third‑party tort claims intersect with family property disputes. If you assert a tort claim on behalf of the community estate (or on behalf of one spouse against a third party) for property damage, you must retain experts who will: (1) perform the requisite, itemized, property‑level analyses; (2) offer affirmative but‑for opinions tying the damage to the defendant’s conduct; and (3) document alternative causation and why the defendant’s acts, rather than natural disaster or preexisting risk, caused the loss. Conversely, when defending against a community‑property damage claim, press for specificity: force plaintiffs to produce house‑level models, rainfall/flow data, and affirmative expert conclusions, and move and argue sufficiency points at charge and post‑trial stages when experts decline to perform necessary analysis.
Checklists
Gather Your Evidence
- Identify the specific asset(s) alleged damaged (address, legal description, property condition before event).
- Collect contemporaneous photos, repair estimates, insurance claims, and adjuster reports.
- Preserve environmental, topographic, and municipal drainage records and permits.
Expert Retention and Scope
- Retain a qualified expert early; define a scope that includes property‑specific hydrologic/topographic modeling and alternative‑cause analysis.
- Require an expert report that states a clear but‑for opinion and the analyses supporting it (models, data sources, assumptions).
- Ensure your expert is willing to sign a written affidavit/opinion addressing specific houses and to testify to causation within a reasonable degree of engineering/hydrologic certainty.
Depositions and Cross‑Examination
- Depose opposing experts on whether they performed house‑level models, why they did or did not, and what they could have done.
- Pin opposing experts to a yes/no but‑for opinion; elicit concessions that failure to perform modeling undermines causation conclusions.
- Use deposition exhibits showing alternative causes (regional rainfall maps, upstream drainage changes) to impeach generalist causation testimony.
Jury Charge and Trial Preservation
- Draft jury questions that separately require (a) substantial‑factor causation and (b) but‑for causation for each property or zone.
- Submit tailored definitions consistent with Texas precedents emphasizing the but‑for element.
- Preserve sufficiency issues by moving for directed verdict/JNOV and obtaining written grounds for the motion.
Appellate Preservation
- Ensure the record contains all expert reports, underlying data, and deposition testimony showing the absence or insufficiency of house‑level analysis.
- Make explicit oral and written objections and moves for judgment when experts refuse to opine on but‑for causation.
- If appealing, frame the issue as legal insufficiency under established cause‑in‑fact standards and cite controlling Texas precedent.
Citation
Tenaris Bay City Inc. v. Ricky Ellisor, et al., No. 23‑0808 (Tex. May 23, 2025).
Full Opinion
Full opinion — Supreme Court of Texas (May 23, 2025)
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