The Fairfax Bridge is a steel-lattice three-hinged arch bridge spanning the Carbon River on State Route 165 in Pierce County, Washington. Previous to the construction of the bridge in 1921, the only route south to the area around Fairfax was by train.
As of spring of 2025, the bridge was deemed unfit for heavier vehicles and subsequent inspections led to the permanent closure of the bridge. This results in the lack of access to the northwest corner of Mount Rainier National Park and its many popular attractions. So far no plan has been introduced to reestablish access to this corner of the park.
