Trillium Lake Boardwalk Reopens After Major Restoration

Trillium Lake has long been a popular destination in the Mt. Hood National Forest, drawing thousands of visitors each year for its calm waters and uninterrupted views of Oregon’s tallest peak. This fall, the popular 1.9-mile trail reopened in full for the first time in several years after a multi-season effort to rebuild deteriorating sections of the Trillium Lake Boardwalk.

Multiple stretches of the boardwalk, originally built in the early 1990s, had reached the end of their lifespan after decades of weather exposure, shifting soils, and heavy foot traffic. The U.S. Forest Service began closing unsafe segments in 2021, breaking up the loop and limiting access to several shoreline viewpoints. Rebuilding the structure quickly became a priority.

Reconstruction took place in phases over several years, culminating this fall when the final pieces were put into place. Seven major segments were rebuilt in 2023 alone, using more durable materials and meeting modern design standards intended to extend the boardwalk’s lifespan. The walkway now exceeds 40 inches in width, giving visitors – including those using wheelchairs, walkers, or strollers – more room to travel comfortably. Several small viewing platforms were added to provide resting points and improve access to some of the lake’s most iconic vistas.

The National Forest Foundation coordinated the project alongside the Forest Service and a mix of contractors, volunteers, and youth crews. In a full-circle moment, the contractor who built the original boardwalk more than 30 years ago returned to lead the rebuild.

The restoration effort was celebrated at a partner event on September 24, 2025, at the Trillium Lake Day Use Area. Representatives from the U.S. Forest Service, National Forest Foundation, Oregon Parks and Recreation Department, Oregon’s Mt. Hood Territory, Timberline Lodge, and others provided remarks and guided visitors through portions of the rebuilt boardwalk.

With winter approaching, visitors still have an opportunity to enjoy the renewed boardwalk before the snow settles in. For many, the chance to once again walk the complete loop around Trillium Lake is a welcome one.