Denali Summit, LLC v. Union Electric Company

Denali Summit · United States Court of Appeals for the Eighth Circuit · October 27, 2025 · No. 24-3152

Summary

The Eighth Circuit vacated a preliminary injunction that barred Denali Summit, LLC from constructing or commercially using docks, seawalls, erosion-control measures, and a breakwater on property subject to Ameren Missouri’s easement. The court held that Ameren had not shown likely irreparable harm, noting that possible public-safety risks and interim property-related injuries could be addressed through damages. The court remanded for further proceedings because the merits and scope of Ameren’s easement remained insufficiently developed.

Court
United States Court of Appeals for the Eighth Circuit
Writing for the Court
COLLOTON, Chief Judge; ERICKSON, Circuit Judge; STRAS, Circuit Judge
Jurisdiction
United States Court of Appeals for the Eighth Circuit
Decision date
October 27, 2025
Docket number
24-3152
Procedural posture
Denali Summit appealed the district court's order granting Ameren Missouri's renewed motion for a preliminary injunction in an action involving the scope of Ameren's easement and regulatory authority over structures on lakefront property.
Standard of review
The court reviewed the district court's legal conclusions de novo, factual findings for clear error, and ultimate determination regarding preliminary injunctive relief for abuse of discretion.
Precedential value
Published
Parties
Denali Summit, LLC v. Union Electric Company, doing business as Ameren Missouri
Disposition
vacated

Topics

easementsreal estateequitable reliefremediesappellate procedure

Practice areas

real estateremediescommercial litigationappellate procedureadministrative law

Questions Presented

  1. Whether Ameren established likely irreparable harm sufficient to support a preliminary injunction before final resolution of the merits.
  2. Whether the record supported preliminary injunctive relief where the alleged public-safety risks were only characterized as possible and any interim property damage or liability could be remedied through damages.
  3. Whether the district court could grant preliminary relief on a regulatory-authority theory when Ameren defended the injunction on appeal primarily on the basis of its easement rights and the merits record concerning the easement was undeveloped.

Holdings

  1. Ameren failed to show likely irreparable harm sufficient to justify preliminary injunctive relief.
  2. Even if a permanent injunction might ultimately be appropriate, preliminary injunctive relief was not justified because any interim encroachment could be remedied with damages after a final merits determination.
  3. The undeveloped and inconsistent record concerning the scope of Ameren's easement and FERC-based regulatory authority further undermined the justification for preliminary injunctive relief.

Key quotations

A suggestion of “possible” hazard is not enough to justify injunctive relief for the interim period during which the case is litigated to final judgment. (at 4)
Ameren therefore must show that it faces harm that a permanent injunction would not prevent. (at 5)
The merits in this case are murky. (at 5)

Factual background

Ameren operates the Osage Project, a hydroelectric plant on the Lake of the Ozarks, under a Federal Energy Regulatory Commission license and holds a flooding easement over property now owned by Denali Summit. The FERC license and Ameren's shoreline management plan require permitting and regulation of shoreline structures. After Ameren denied permits for docks exceeding plan limits, Denali Summit installed docks, seawalls, erosion-control measures, and a breakwater that Ameren deemed noncompliant. Ameren sought a preliminary injunction, asserting that the structures caused irreparable harm and interfered with its property and regulatory rights.

Procedural history

Denali Summit sued Ameren in Missouri state court seeking declaratory relief and to quiet title after Ameren denied permits for proposed docks and demanded removal or modification of allegedly noncompliant structures. Ameren removed the action to federal court and asserted counterclaims for quiet title and injunctive relief. The district court initially denied a preliminary injunction, then reconsidered and granted partial preliminary relief enjoining construction, use, leasing, and commercial activity. The Eighth Circuit vacated the preliminary injunction and remanded for further proceedings.

Remand instructions

The preliminary-injunction order is vacated, and the case is remanded for further proceedings on the parties' claims and the merits of the easement and regulatory-authority dispute.

Court Document

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