From the Elk Rock area, the highway forms the northern boundary of the Mount St. Helens National Volcanic Monument and encounters more mountainous terrain that results in several hairpin turns between other scenic viewpoints. Walk out on the viewing deck, listen to an interpretive talk by a Park Ranger or take a stroll along one of the many trails leading from the observatory. Before the 1980 eruption, Spirit Lake was surrounded by old-growth forests. Sandy and Roy Ford planned to go boating and barbecuing on the Cowlitz River the morning of May 18. Receive latest stories and local news in your email: Stunning views of Mount St. Helens drew a loyal following of cabin owners, Boy Scout campers, hikers and other outdoor enthusiasts to the shores of Spirit Lake. Today, you can almost see a line between the trees that were farmed and the natural regeneration of plant-life at the mountain. [29] The state government paved sections of the highway in the late 1930s and early 1940s,[26][30] with only a short section at the east end remaining unpaved by 1944. Oblique aerial view of Mount St. Helens before the May 18, 1980, eruption, as seen from Bear Cove, Spirit Lake.

[55][56] Several vehicles on the highway were swept away by the lahar, including those carrying some of the eruption's 57 victims. The highway continues along the northeast side of the earthen dam and its reservoir, climbing uphill and running through cuts in the cliffs. [34][35] Despite support from the state government, the Forest Service, and Bureau of Public Roads, the highway project was put on hold for several years due to funding shortfalls. [46] In the following days, the roadblock was moved to 15 miles (24 km) west of the lake and later 30 miles (48 km) west as the risk of an imminent eruption grew. St. Helens Timberline Asked", "Timberline Road Dedication Set on Saturday Afternoon", "Official Opening, Kid Valley Bridge (Toutle River)", "Mount St. Helens erupts on May 18, 1980", "Firefighters take advantage of the lull around volcano", "Foreigners flock to volcano to see devastated landscape", "Washington prepares to cope with volcano tourist traffic", "Chapter 82: Spirit Lake Memorial Highway", "Mount St. Helens, 17 years later: Rising from the ash", "Mount St. Helens: Proposed road meets opposition", "Road would hook up to Highway 12 at Randle", "Push for St. Helens road link smolders on", "Mount St. Helens poised to erupt; Scientists wait and watch", "Mount St. Helens came back to life a decade ago", "SR 504 to remain closed through weekend", "Major Debris Clean-Up Complete, SR 504 East of Kid Valley Opens to Traffic", "Vehicle Operator's Handbook and Fuel Station Locations", Template:Attached KML/Washington State Route 504, https://en.wikipedia.org/w/index.php?title=Washington_State_Route_504&oldid=983336823, Transportation in Cowlitz County, Washington, Transportation in Skamania County, Washington, Infobox road instances in Washington (state), Creative Commons Attribution-ShareAlike License, This page was last edited on 13 October 2020, at 17:21. “They have not found one trace of any of these cabins. St. Helens – Before and After Maps. But not before there was another major disaster. [63][64] A visitor center was also opened at Silver Lake in 1987 to serve the growing number of tourists to the area, but the highway would remain closed beyond the sediment dam. Large chunks of the volcano were deposited in the lake. Anoxic conditions persisted for a relatively short period of time. Most of Spirit Lake was temporarily displaced by the avalanche of mud and debris rolling from the blast zone. She being the cabin, which went away under the 3.7-billion-cubic-yard avalanche enough to cover the state with a half-inch of debris that buried some 50 Spirit Lake cabins when Mount St. Helens erupted May 18, 1980. The 5.1 magnitude earthquake that came in tandem with the 1980 eruption triggered an avalanche that buried dozens of cabins and forever altered Spirit Lake… [91] A minor mudslide in March 2007 blocked a section of SR 504 near Kid Valley and was removed after a week-long cleanup by WSDOT crews. Average traffic volumes on the highway in 2016 ranged from a minimum of 500 vehicles near Coldwater Lake to a maximum of 14,000 vehicles at the I-5 interchange in Castle Rock. The landslide displaced the water from the lake and lifted the lake bed 200 feet in the air.

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