Iconic Ancient Forest in Mount Rainier National Park Nears Reopening After Years of Closure

After being inaccessible for several years due to a catastrophic flood, the cherished Grove of the Patriarchs in Washington State's Mount Rainier National Park is on the path to welcome visitors once more. A comprehensive plan has been put forth by the National Park Service, in collaboration with the Federal Highway Administration, to construct a new, more resilient bridge and an updated trail network. This initiative aims to restore public entry to the remarkable ancient forest, renowned for its thousand-year-old trees, which has been cut off since the original 'Big Tree Bridge' was destroyed in 2021.

The original "Big Tree Bridge," a steel and wood-decked suspension bridge, provided access to the Grove of the Patriarchs since its construction in 1961. This bridge was a critical link, allowing hikers to embark on a 1.3-mile journey through a network of paths, boardwalks, and smaller bridges. The destination was a captivating old-growth rainforest where trees, some reaching a circumference of 25 feet, have stood for an estimated millennium. These ancient Douglas-firs, silver firs, Western red cedars, and hemlocks are not only majestic natural wonders but also vital habitats for endangered species like the northern spotted owl and marbled murrelet.

In 2021, severe flooding of the Ohanapecosh River wreaked havoc, completely demolishing the existing footbridge and necessitating the immediate closure of the Grove. The National Park Service subsequently removed the remnants of the old bridge, leaving the site isolated. The new proposal addresses the dynamic nature of the Mount Rainier landscape, where environmental forces constantly reshape the terrain. Recognizing the susceptibility of the old bridge's location to erosion, the new suspension bridge will be strategically relocated half a mile downstream. This new structure is designed to be approximately 215 feet long, significantly longer than its predecessor, and will be elevated 35 to 40 feet above the riverbed to withstand future natural events.

The current design for the revitalized access system is approximately 30 percent complete. The National Park Service has made detailed descriptions, visual mock-ups, and an interactive 3D map available online, allowing the public to review the planning and proposed construction process. Following the finalization of the proposal, it will undergo the necessary approvals under the National Environmental Policy Act (NEPA). Public engagement is a key component, with an in-person open house scheduled for August 26, complemented by an online version the following day, to ensure community input on these significant plans.

While the prospect of re-exploring this ancient natural sanctuary is exciting, visitors are advised to defer travel arrangements for now. The National Park Service anticipates commencing construction in 2028, with an estimated reopening date for the new bridge and the Grove of the Patriarchs in 2029. This patient approach ensures the development of a safe, sustainable, and enduring access solution for this irreplaceable natural treasure.