Trestle Creek Commercial Marina and Luxury Housing

December 23, 2025 — In response to our litigation, the U.S. Army Corps of Engineers ordered the Idaho Club to stop construction on a commercial marina and lakeside housing development at the mouth of Trestle Creek on Lake Pend Oreille. The Corps’ permit authorized marina construction only after completion of the planned reroute of Trestle Creek’s North Branch and only during specific seasons to protect bull trout. The permit also required the North Branch to be dry during construction. Despite those conditions, work began while the creek was flowing.

In a December 22 letter, the Army Corps told the Idaho Club that ongoing construction work violated its permit conditions. The Corps said construction cannot continue in the North Branch of Trestle Creek until the stream is dry and barred work in the marina area until restoration of the North Branch is complete.

December 18, 2025 — Advocates for the West and our partners at the Center for Biological Diversity and Idaho Conservation League (ICL) filed suit against two federal agencies for approving a commercial marina and luxury housing near the mouth of Trestle Creek on Idaho’s Lake Pend Oreille. Work on the project is underway in apparent violation of the federal permits. Advocates for the West is representing the Center and ICL in the case.

As the lawsuit against the U.S. Fish and Wildlife Service and Army Corps of Engineers notes, Trestle Creek is one of the Pacific Northwest’s most important spawning streams for federally protected bull trout.

The lawsuit, filed in the U.S. District Court for the District of Idaho, says that the agencies failed to consider the various ways that the marina and houses may harm bull trout and their critical habitat, resulting in violations of the Administrative Procedure Act and National Environmental Policy Act.

The Center also filed a notice of its intent to sue the agencies for violating the Endangered Species Act, citing their inadequate and unsupported analysis of the project’s effects on bull trout and its critical habitat. According to the lawsuit, the agencies’ approvals were contingent on the developer meeting certain conditions that now appear to have been violated, triggering an immediate need to reassess the project.

The Corps’ permit authorized marina construction only after completion of the planned reroute of Trestle Creek’s North Branch and only during specific seasons to protect bull trout. The permit also required the North Branch to be dry during construction. Despite those conditions, work is underway while the creek is flowing.

The Idaho Club’s current project proposal calls for building large fixed-pier docks, a commercial marina with the capacity for 98 boats, a breakwater, boat pump-out station, boat storage, private homes, roads and a large parking lot.

The developer has moved forward prematurely with their plans to carve out a new channel to reroute Trestle Creek’s North Branch away from the commercial marina, excavate portions of an island and a peninsula, and dump fill into Lake Pend Oreille. All of this would occur near the mouth of Trestle Creek.

Trestle Creek is considered the most important bull trout spawning stream in the Pend Oreille Basin. Annual redd counts (the in-stream nests where fish lay their eggs) show that as many as half of the bull trout redds in the entire basin occur in Trestle Creek.

Bull trout migrate between the lake and Trestle Creek multiple times during their lifetime to spawn, and juvenile bull trout are raised in the stream before migrating into the lake. The Service has determined that protecting this area is critical to the survival and recovery of bull trout.

In 2022, the Center and ICL sued the U.S. Army Corps of Engineers and the Fish and Wildlife Service for approving the Idaho Club’s then-proposed plan for the marina and high-end homes without considering how it would harm critical bull trout habitat. In response to the lawsuit, the Army Corps pulled the project’s permit.

The Fish and Wildlife Service’s original biological opinion determined that the development would harm and possibly kill bull trout. The agency recently reversed course, however, and now claims that the housing, marina, and creek reroute are unlikely to harm bull trout. Bull trout have been protected since 1999, when they were listed as threatened with extinction under the Endangered Species Act. In 2010, the Fish and Wildlife Service designated critical habitat for the trout, including Trestle Creek. Trestle Creek also provides important habitat for other animals including bald eagles, migratory birds, beavers and kokanee salmon.