Kentucky Rejects Automatic Immunity and Broad Federal Preemption for Highway Design Consultants

Case: HMB Professional Engineers, Inc. v. Kristina L. Ives, Individually (consolidated appeals)
Court: Supreme Court of Kentucky
Date: April 23, 2026
Disposition: Affirmed (Court of Appeals); summary judgment for engineers reversed

1. Introduction

This decision arises from a fatal hydroplaning crash on a widened section of I-65. Jennings Copley II and Hiram “Dudley” Ives III were traveling in heavy rain when their vehicle hydroplaned, struck a guardrail, rolled back into the roadway, and was hit by a tractor trailer. Ives was killed; Copley was severely injured. Kentucky State Police identified “water pooling” as an environmental factor.

Ives’ widow, Kristina L. Ives (individually, as next friend for minor children, and as personal representative of the Estate), and Copley sued the engineering firms involved in the design of the I-65 widening project—WSP USA, Inc. (prime consultant), HMB Professional Engineers, and HDR Engineering (subconsultants) (collectively, the “Engineers”). Plaintiffs alleged negligent highway design: replacing a grass median with a concrete barrier and adopting a cross-slope and inlet plan that caused more stormwater to traverse travel lanes, increasing hydroplaning risk.

The Fayette Circuit Court granted summary judgment to the Engineers on two grounds: (i) “immunity,” and (ii) federal preemption. The Court of Appeals reversed. The Supreme Court of Kentucky affirmed the Court of Appeals, holding that neither immunity nor preemption justified summary judgment on this record.

2. Summary of the Opinion

  • No automatic immunity for private contractors: The Engineers do not share the Commonwealth’s sovereign (or derivative) immunity merely because they contracted with KYTC.
  • “Mandated design” defense not resolved on summary judgment: Kentucky recognizes that contractors may avoid liability when they strictly follow government-mandated plans/specifications, but here a genuine issue of material fact exists as to whether the alleged design defect was actually mandated (or instead reflected the Engineers’ professional judgment and/or negligence).
  • No federal preemption of parallel state tort claims: Plaintiffs’ negligence/wrongful death claims are not preempted where they seek to enforce conduct consistent with (not “higher than”) federal standards applicable to NHS highways.

3. Analysis

A. Precedents Cited

1) Summary judgment framework

The Court applied the standard reiterated in Motorists Mut. Ins. Co. v. First Specialty Ins. Corp., reviewing whether the record shows “no genuine issue as to any material fact,” and confirmed de novo review under Caniff v. CSX Transp., Inc.. This framing mattered because the Engineers’ defenses (immunity, “mandate,” and preemption) were presented as dispositive legal bars; the Court held the record contained factual disputes that prevented judgment as a matter of law.

2) Sovereign immunity, derivative immunity, and contractors

The Court reaffirmed the Commonwealth’s sovereign immunity (Comair, Inc. v. Lexington-Fayette Urb. Cnty. Airport Corp.) and acknowledged KRS 12.211’s protection for the state against actions arising from discretionary highway design/construction decisions. But it sharply separated the state’s immunity from a private contractor’s liability.

The controlling Kentucky line rejecting “automatic” contractor immunity runs through:

  • Taylor v. Westerfield (1930): Overruled earlier cases and held contractors performing work for the state are responsible in damages “just as he would be on private work.”
  • Combs v. Codell Construction Co. (1932): “immunity does not absolve the contractor from negligence in performing his contract.”
  • Codell Construction Co. v. Steele (1933): reaffirmed contractor liability; negligence instructions proper even when work is for the state.

The Court also leaned on modern immunity-analysis principles reflected in Shadrick v. Hopkins County, Ky. (6th Cir. 2015), applying the Comair “source of the entity” and “nature of the function” test to reject immunity for a private, for-profit contractor (there, a jail medical provider). The Court treated Shadrick as consistent with Kentucky’s longstanding rule: contracting to perform a governmental function does not itself convert a private company into an immune state actor.

Construction-era contractor cases were used to show the durability of the “contractor still liable for negligence” principle: H.H. Miller Constr. Co. v. Collins and Hunt-Forbes Constr. Co. v. Robinson. The Court acknowledged that contractors may avoid liability when they perform without negligence and within the contract, but emphasized the persistent exception: liability remains for negligent performance.

The Engineers’ reliance on older cases—Teager v. City of Flemingsburg, Clay City v. Abner, and McCourt v. City of Covington—was rejected as largely involving claims against municipalities (not independent contractors) and predating Taylor v. Westerfield. The Court also distinguished Portwood v. Hoskins-Squier as a suit against government and employees (crosswalk decision), not an independent government contractor.

3) The “mandated plans/specifications” (government contractor) defense

The Court treated the Engineers’ second “immunity” argument as a distinct doctrine: a contractor may not be liable where the government mandates the relevant design feature, leaving no discretion.

The Engineers principally invoked two 1970 decisions:

  • Rigsby v. Brighton Engineering Co.: summary judgment for engineer where Department of Highways criteria did not require guardrails, and the engineer had “no discretion to alter, change or deviate” in any material respect; a recommendation would have been futile.
  • City of Louisville v. Padgett: articulated that a contractor performing in conformity with plans/specs generally is not liable absent negligent or willful tortious act (or ultrahazardous activity), and held a contractor could not be liable where it was “told what to do” by highway department officials.

Importantly, the Court reframed these cases as negligence/causation/standard-of-care decisions rather than true “immunity” holdings—emphasizing that Rigsby “made no mention of immunity” and turned on the absence of discretion and the futility of deviation.

The Court found this record materially different from Rigsby: Plaintiffs offered competing expert proof that the desired drainage/slope features were allowable and that the Engineers were hired to exercise professional judgment within flexible standards—not merely to implement rigid, state-furnished specifications. The Court also noted (as a nonbinding but informative comparator) the Court of Appeals’ reasoning in McCarty v. Willett, which likewise resisted collapsing the contractor defense into “derivative sovereign immunity” and treated factual disputes about mandated design as defeating summary judgment.

4) Federal preemption doctrine

For preemption, the Court cited Kentucky’s preemption framework in Niehoff v. Surgidev Corp. and the distinction between express and implied preemption in Cipollone v. Liggett Group, Inc.. It also invoked the presumption against preemption from N.Y. State Conf. of Blue Cross & Blue Shield Plans v. Travelers Ins. Co..

The Court’s operational test for “parallel” state claims—state duties survive unless they impose a higher or different requirement—drew from Russell v. Johnson & Johnson, Inc. (in the medical device context). To illustrate “covering” and “subsuming” subject matter, the Court relied on CSX Transportation, Inc. v. Easterwood, emphasizing that federal regulation does not preempt merely because it “touch[es] upon” an area; it must “substantially subsume” the state law subject matter.

B. Legal Reasoning

1) Contractors do not inherit the Commonwealth’s immunity by contract alone

The Court drew a bright doctrinal line: the Commonwealth’s immunity (and KRS 12.211’s discretionary-design shield) does not automatically extend to private, for-profit engineers. The Court treated the Engineers as analogous to the private contractor in Shadrick v. Hopkins County, Ky.: not created by government, not transformed into a state agency merely by performing a governmental function, and therefore answerable in tort for their own negligence.

2) The “mandated design” defense requires undisputed proof of mandate and no discretion

The Engineers argued that once KYTC/FHWA approved the design, the design was effectively mandated, barring liability under Rigsby and City of Louisville v. Padgett. The Court rejected the premise that “approval” equals “mandate” as a matter of law on this record.

Several factual features drove the Court’s conclusion that a jury could find the design was not rigidly mandated:

  • KYTC’s manual emphasized “flexibility” and that it should not “supersede the application of sound engineering principles by experienced design professionals.”
  • The AASHTO “Green Book” similarly described itself as guidance permitting “independent designs tailored to particular situations.”
  • The project’s procurement and compensation (multi-million-dollar design work), the use of professional seals, and contract terms (including professional liability insurance and indemnity) supported an inference that the Engineers were retained for professional judgment and compliance—not merely for ministerial adherence to predetermined drawings.
  • The “design exception” obtained related to vertical alignment/stopping sight distance—while the alleged defect involved drainage/cross-slope decisions—and the parties agreed shoulder slope was not among FHWA’s “controlling criteria” requiring a formal design exception. This undermined any claim that the FHWA exception conclusively approved the disputed drainage/slope condition.

The opinion’s core procedural holding is that these disputes go to breach/standard-of-care and causation, and therefore are not suitable for summary judgment when supported by competing expert evidence.

3) Federal highway standards did not preempt these tort claims

The Court found no express preemption in the governing statutes/regulations (e.g., 23 C.F.R. § 625) and rejected implied preemption. Plaintiffs’ theory was not that Kentucky law demands a “higher” standard than federal law; rather, it was that the Engineers failed to satisfy the applicable federal-and-state design standards as implemented through KYTC and AASHTO guidance.

Using Russell v. Johnson & Johnson, Inc. as an analogy, the Court treated Kentucky negligence law here as “parallel” to federal requirements: a state claim survives so long as it “seeks to vindicate a claim within the boundaries of the federal regulation.” And consistent with CSX Transportation, Inc. v. Easterwood, the Court emphasized that a federal design regime does not automatically “substantially subsume” traditional tort duties, particularly where the federal standards themselves contemplate engineering judgment rather than rigid commands.

C. Impact

1) Litigation posture: tougher summary judgment for design consultants

After this decision, Kentucky defendants in highway design cases will face a higher bar to win on summary judgment using “immunity” labels. The Court’s approach forces clearer categorization:

  • Derivative/official immunity: generally unavailable to private, for-profit contractors absent unusual “source of entity” circumstances.
  • Mandated-plans defense (Rigsby/Padgett): fact-dependent and requires undisputed proof the government mandated the challenged feature and the contractor lacked discretion.

2) Substantive incentives: documentation of discretion and standards compliance

Engineering firms working on NHS projects in Kentucky should anticipate that “FHWA/KYTC approved it” will not be dispositive if plaintiffs can produce expert evidence that the standards allowed safer alternatives within the same regulatory framework. Expect increased emphasis on:

  • recording design deliberations and alternatives;
  • explicitly identifying what was truly mandated versus what reflected consultant judgment;
  • defending compliance with AASHTO/KYTC guidance as applied to site-specific conditions (e.g., curvature, superelevation, drainage, inlets).

3) Preemption defenses narrowed in practice

The Court’s preemption holding signals that, absent an express preemption clause or a direct conflict where state tort law imposes “different from or in addition to” requirements, Kentucky negligence claims can proceed even in heavily federally regulated highway design contexts—especially when plaintiffs plead that defendants failed to meet, rather than exceed, federal standards.

4. Complex Concepts Simplified

  • Sovereign immunity: the rule that the Commonwealth generally cannot be sued without consent.
  • Derivative/official immunity: protections that can extend to certain government entities or officials (and sometimes agents), depending on their origin and function; the Court held private engineering firms do not receive this merely by contracting with KYTC.
  • Government contractor / “mandated plans” defense: a contractor may avoid liability if the government truly required the specific design feature and the contractor had no discretion to change it; the key question is whether the disputed feature was actually mandated.
  • Federal preemption: federal law can displace state law when Congress says so (express) or when federal regulation leaves no room for state law or conflicts with it (implied). “Parallel” state tort duties usually survive.
  • AASHTO “Green Book”: the primary design guidance referenced for NHS projects; the Court emphasized its guidance-based, judgment-permitting character.
  • Design exception (FHWA): formal approval to deviate from certain “controlling criteria.” The opinion highlights that the exception obtained here concerned stopping sight distance (vertical alignment), not necessarily drainage/cross-slope choices.
  • Superelevation/cross slope: banking or sloping of pavement on curves to help vehicles navigate; it also affects where water drains.
  • Hydroplaning: loss of tire traction when water builds up between tires and pavement, often linked to drainage design and surface water flow paths.

5. Conclusion

The Supreme Court of Kentucky’s decision establishes (and forcefully restates) three practical rules for Kentucky highway design litigation: (1) private engineering consultants do not become immune state actors merely because they contract with KYTC; (2) the Rigsby v. Brighton Engineering Co. / City of Louisville v. Padgett “mandated design” defense is not a blanket shield and cannot support summary judgment where evidence permits a finding that engineers had discretion and may have departed from applicable standards; and (3) federal highway design regulation does not, without more, preempt Kentucky negligence and wrongful death claims that operate in harmony with federal requirements.

In the broader context, the opinion protects the continued role of state tort law as a mechanism for testing whether federally guided—but judgment-dependent—engineering decisions were executed with reasonable care, while reserving the contractor defense for cases of true government mandate and undisputed lack of discretion.