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Filters: Tags: Cowlitz County, Washington (X)

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Index card: I-5 bridge over Toutle River. Note mud line on left abutment and paint removed from main girder by logs. Cowlitz County, Washington. July 5, 1980.
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Index card: Oblique aerial view showing Mount St. Helens and South Fork Toutle River mudflow after the May 25, 1980 ash eruption. Note the large gully in the upper center of the view. Skamania and Cowlitz Counties, Washington. 1980.
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View to north of mouth of Coldwater Creek from top of Mount St. Helens debris avalanche deposit. Cowlitz County, Washington. May 24, 1980.
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Album caption and index card: County bridge over South Fork Toutle River. Note marks from muddy logs that hit bottom of girder. Cowlitz County, Washington. July 7, 1980.
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Album caption and index card: Cowlitz River just upstream from Kelso and Longview, Washington. Light area is covered with mud. Cowlitz County, Washington. July 2, 1980.
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Index card: Aerial view of debris flow in the Toutle River basin, showing erosion from snowmelt, and several small brightly colored (turquoise, yellow, brown) pools of water. Cowlitz County, Washington. May 1, 1981.
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Index card: Aerial view of Camp Baker and mudflows in North Fork Toutle River on May 20, 1980. Cowlitz County, Washington.
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Album caption, slide description, and slide index card: MSH-Branch of Exhibits no. 12cp: Mount St. Helens. Aerial view of mudflow deposits and damage along the north bank, North Fork Toutle River. Cowlitz County, Washington. May 26, 1980. (Photo by D. Dzurisin) (Same as MSH-BE-VOLC-0026ct) (msh_boe_volc0026_ct).
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Index card: Generalized map of flowage deposits from the May 18, 1980 eruption, around Mount St. Helens. Skamania and Cowlitz Counties, Washington.
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Index card: This gaging station located one mile below the junction of the North and South Forks Toutle River was completely wiped out by the May 18, 1980 mudflow. A five-inch concrete reinforced gage well was sheared off at the ground, leaving the re-rod bent in the downstream direction and completely stripped of concrete. A staff gage found inside of the well had an upper elevation of 17 feet. The elevation at the top of the mudflow was 53 feet. Cowlitz County, Washington. 1980.
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Album caption: Looking upstream from Kid Valley bridge, SR 504, North Fork Toutle River. Cowlitz County, Washington. July 5, 1980. Index card unavailable.
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Album caption and index card: Oblique aerial view of the confluence of Columbia and Cowlitz Rivers showing suspended sediment and debris in the Cowlitz River caused by the eruption of Mount St. Helens on May 18, 1980. City of Longview in background. Cowlitz County, Washington. May 23, 1980. Published as figure 12 in U.S. Geological Survey. Circular 850-K. 1983.
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Album caption and index card: Weyerhaeuser Company employee bus heavily damaged and partially buried by mudflow on the North Fork Toutle River near Camp Baker. Bus was unoccupied when hit by the mudflow. Cowlitz County, Washington. 1980. (Same as MSH-Schuster, R. 116ct) Published as figure 409 in U.S. Geological Survey. Professional paper 1250. 1981.
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Index card: Graph showing the travel time of the mudflow event on the South Fork Toutle River and North Fork Toutle River. Note in the mid-range of both forks velocities were comparable. No velocities were collected to the upper reaches of the North Fork Toutle River. Note also the dots which show the travel time for flood event occurring August 27, 1980. Concentration of sediment from the May 18, 1980 mudflows range to 850,000 milligrams per liter, and the concentrations for the August 27, 1980 event ranged to 400,000 milligrams per liter. Travel times through the river reach, however, were not that much different. Cowlitz County, Washington. 1980.


map background search result map search result map Oblique aerial view showing Mount St. Helens and South Fork Toutle River mudflow. Skamania and Cowlitz Counties, Washington. 1980. Destroyed gaging station. Mount St. Helens, Cowlitz County, Washington. 1980. South abutment, Tower Road bridge, Toutle River. Cowlitz County, Washington. 1980. View to north from top of Mount St. Helens debris avalanche deposit. Cowlitz County, Washington. 1980. Rick Hoblitt and Norman Banks servicing time-lapse camera. Mount St. Helens, Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Oblique aerial view of the confluence of the Columbia and Cowlitz Rivers. Cowlitz County, Washington. 1980. Cowlitz River just upstream from Kelso and Longview. Cowlitz County, Washington. 1980. Railroad logging cars buried in mud at Camp Baker. Cowlitz County, Washington. 1980. On lower end of debris flow east of Camp Baker. Cowlitz County, Washington. 1980. Looking upstream from Kid Valley bridge, North Fork Toutle River. Cowlitz County, Washington. 1980. Aerial view of mudflow deposits and damage to the north bank of the North Fork Toutle River. Mount St. Helens, Cowlitz County, Washington. 1980. Graph showing the travel time of the mudflow event on the South Fork Toutle River and North Fork Toutle River. Mount St. Helens, Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County and Skamania County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1981. Mount St. Helens. Cowlitz County and Skamania County, Washington. Mount St. Helens. Cowlitz County, Washington. 1980. Destroyed gaging station. Mount St. Helens, Cowlitz County, Washington. 1980. South abutment, Tower Road bridge, Toutle River. Cowlitz County, Washington. 1980. View to north from top of Mount St. Helens debris avalanche deposit. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Oblique aerial view of the confluence of the Columbia and Cowlitz Rivers. Cowlitz County, Washington. 1980. Cowlitz River just upstream from Kelso and Longview. Cowlitz County, Washington. 1980. Railroad logging cars buried in mud at Camp Baker. Cowlitz County, Washington. 1980. On lower end of debris flow east of Camp Baker. Cowlitz County, Washington. 1980. Looking upstream from Kid Valley bridge, North Fork Toutle River. Cowlitz County, Washington. 1980. Aerial view of mudflow deposits and damage to the north bank of the North Fork Toutle River. Mount St. Helens, Cowlitz County, Washington. 1980. Graph showing the travel time of the mudflow event on the South Fork Toutle River and North Fork Toutle River. Mount St. Helens, Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1981. Mount St. Helens. Cowlitz County, Washington. 1980. Rick Hoblitt and Norman Banks servicing time-lapse camera. Mount St. Helens, Cowlitz County, Washington. 1980. Oblique aerial view showing Mount St. Helens and South Fork Toutle River mudflow. Skamania and Cowlitz Counties, Washington. 1980. Mount St. Helens. Cowlitz County and Skamania County, Washington. 1980. Mount St. Helens. Cowlitz County and Skamania County, Washington.