The highway was part of the Tacoma – Mount Rainier branch of Primary State Highway 5 (PSH 5 TR) from 1937 until 1964 and ran from Tacoma south to Elbe and east to Longmire. In 1964, PSH 5 TR from Tacoma to Elbe became part of SR 7 and the Elbe to Mount Rainier section became SR 706.
Route description
SR 706 runs 13.64 miles (21.95 km) from an intersection with SR 7 in the census-designated place (CDP) of Elbe, east to end at the Longmire gate of Mount Rainier National Park (Mount Rainier NP).[3][4] The route serves as a connector from Elbe to Mount Rainier NP.[3] The highway is open all-year and the entrance to Mount Rainier National Park is open all-year round, unlike other entrances that are open only in the summer.[5] WSDOT has found that more than 3,100 motorists utilize the road daily after the interchange with I-5 based on annual average daily traffic (AADT) data.[6]
SR 706 starts at an intersection with SR 7 in Elbe. After the junction, the road goes northeast, paralleling a railroad owned by Tacoma Rail.[7][8] The railroad extends south to Morton and north to Tacoma.[7] The highway then turns southeast to Park Junction. After passing Park Junction, SR 706 turns due east to National, where the railroad ends. From National, the road turns northeast and curves southeast into Ashford. In Ashford, the highway returns going due east before starting to curve and then end at the entrance to Mount Rainier National Park.[3][9] The road continues east to the Henry M. Jackson Visitor Center.[10]
SR 706 is part of the route for the Ride Around Mount Rainier in One Day, annual bicycle race held in July that circumnavigates Mount Rainier National Park.[11]
History
A wagon road was commissioned by James Longmire between Ashford and hot springs at modern-day Longmire in 1884; its construction a decade later used Coast Salish laborers who had been hired by "Indian Henry", a veteran of the Puget Sound War.[12] By 1893, the road had been extended west through Ashford, but had not reached Elbe.[13] In 1901, residents of towns near the new national park lobbied the Pierce County government to construct a modern road to Longmire and later Paradise Valley.[14] Mount Rainier National Park was the first national park to allow automobile traffic, beginning in 1907; three years later, a road to Paradise Valley was completed.[15]
^Official State Highway Map(PDF) (Map) (2008-2009 ed.). 1:842,000. Official State Highway Maps. Cartography by U.S. Geological Survey. Olympia, Washington: Washington State Department of Transportation. 2008. § G3. Retrieved November 22, 2008.
^Washington State Legislature (March 12, 1913). "Chapter 65: Classifying Public Highways"(PDF). Session Laws of the State of Washington, 1913. Washington State Legislature. p. 222. Retrieved February 18, 2023.
^ abWashington State Legislature (1937). "Chapter 207". Session Laws of the State of Washington (1937 ed.). Olympia, Washington: Washington State Legislature. p. 997. Retrieved November 9, 2008.