Washington State Route 410
…by 1972. In 1973, SR 410 was shortened to its current length after SR 167 was extended to Tacoma. The Mather Memorial Parkway was designated as an All-American Road under the National Scenic Byways program in 1998. On October 11, 2009, a massive landslide buried about 0.5 miles (0.80 km) of SR 410 west of Naches…