State Route 706 (Washington)

State Route 706 (Washington) is a short state highway in Pierce County, Washington linking U.S. Route 12 near Elbe and Washington State Route 7 spurs to the Paradise area of Mount Rainier National Park. The route, often called the Mount Rainier Highway, provides the primary motor vehicle access from the western lowlands to the eastern flanks and visitor facilities near Paradise Inn, Glacier Basin, and the park gateway. SR 706 traverses mixed Mount Rainier foothills, river valleys, and popular recreation zones, serving tourists, Washington State Department of Transportation operations, and National Park Service visitors.

Route description

SR 706 begins at an interchange with U.S. Route 12 near Elbe and the Nisqually River corridor, continuing east as the Mount Rainier Highway toward Mount Rainier National Park. The alignment passes through the community of Ashford and crosses tributaries feeding Nisqually River while paralleling corridors used historically by Northern Pacific Railway freight routes and modern State Route 7 connector plans. As SR 706 ascends, it skirts the boundary of Mount Rainier National Historic Landmark District and reaches park gates adjacent to Longmire, Paradise Inn, and Mowich Lake access roads. The pavement ends at the park entrance, where jurisdiction transfers from the Washington State Department of Transportation to the National Park Service; summer seasonal traffic includes Mount Rainier National Park shuttles, sightseers bound for Emmons Glacier, and climbers preparing for routes on Disappointment Cleaver and Camp Muir.

History

The corridor that became SR 706 follows early 20th-century access improvements tied to tourism to Mount Rainier National Park established by President Theodore Roosevelt and managed by the National Park Service. Early wagon roads and the Mount Rainier Toll Road Company routes were replaced by state-funded roadways during the Good Roads Movement era and later New Deal public works projects influenced by agencies such as the Civilian Conservation Corps and Works Progress Administration. Following Washington's 1964 highway renumbering, the roadway received its SR 706 designation, formalizing connections between U.S. Route 12 and the Mount Rainier National Park entrance. Over decades SR 706 has been reconstructed after flood events related to Nisqually Glacier runoff, fire impacts connected to regional wildfires documented by Washington State Department of Natural Resources, and winter avalanche mitigation studied with input from United States Geological Survey. Notable episodes include emergency repairs after 2006 flood-era washouts and infrastructure resilience upgrades coordinated with the Federal Highway Administration and Pierce County emergency management.

Major intersections

The route's key junctions link federal and state routes serving western Washington tourist and freight flows. Mileposts are approximate. - Western terminus: junction with U.S. Route 12 near Elbe, Washington — access to Tacoma, Olympia, and the Tacoma Narrows Bridge corridor. - Ashford area: local connector to State Route 706 Spur and service roads serving Ashford School and visitor lodging near Longmire. - Eastern terminus: park entrance to Mount Rainier National Park near Paradise Inn — access to Sunrise and backcountry trailheads for Burroughs Mountain and Skyline Trail.

Future and improvements

Planned and proposed projects affecting SR 706 involve resilience, visitor access, and multimodal options coordinated among Washington State Department of Transportation, National Park Service, and regional planning bodies such as the Puget Sound Regional Council. Priorities include pavement rehabilitation funded through federal STP funds, culvert replacements to support bull trout and salmon passage in tributaries designated under Endangered Species Act consultations, and slope stabilization informed by studies from the United States Forest Service and United States Geological Survey. Discussions have included shuttle service expansions modeled after systems in Yellowstone National Park and Yosemite National Park to reduce congestion at Paradise Inn and lower Carbon River valley impacts, alongside climate-adaptive redesigns following assessments by National Oceanic and Atmospheric Administration and Washington State Department of Ecology on changing snowpack and flood regimes.

Recreation and points of interest

SR 706 serves as the gateway to several notable destinations and outdoor resources. Visitor facilities include Paradise Visitor Center, Longmire Museum, and the historic Paradise Inn listed on the National Register of Historic Places. Trail access from SR 706 reaches the Skyline Trail, Burroughs Mountain Trail, and routes to Emmons Glacier and Mowich Lake for hikers, climbers, and backcountry campers coordinated under Mount Rainier National Park permits. Natural attractions along or near the route include views of the Nisqually Glacier, meadows famed for subalpine wildflowers popularized in regional guidebooks from Mountaineers Books, and interpretive exhibits covering Native American cultural landscapes associated with tribes such as the Puyallup Indian Tribe and Cowlitz Indian Tribe. Seasonal recreation management integrates search-and-rescue coordination with Washington State Patrol, United States Forest Service rangers, and National Park Service staff.

Category:State highways in Washington (state) Category:Transportation in Pierce County, Washington