Rating:
2 votes

Toutle River Bridge

Cowlitz County, Washington

Photos 

Toutle River Bridge

The 75-m (247-ft) St. Helens bridge on State Highway 504. View before May 18 eruption of Mount St. Helens. Photo by D.R. Crandell. Cowlitz County, Washington.n.d. Figure 406-A, U.S. Geological Survey

Photo by D.R. Crandell. Cowlitz County, Washington

View this photo at libraryphoto.cr.usgs.gov

BH Photo #134305

Map 

Facts 

Overview
Lost Warren through truss bridge over North Fork Toutle River on SR-504
Location
Cowlitz County, Washington
Status
Destroyed in the 1980 Mt. St. Helens Eruption
Design
The SR-504 Toutle River Bridge was a 247-ft through Warren Truss that was destroyed by the massive lahar triggered by the May 18, 1980 Mt. St. Helens eruption.
Dimensions
Total length: 247.0 ft.
Also called
SR-504 Bridge
Approximate latitude, longitude
+46.33488, -122.52298   (decimal degrees)
46°20'06" N, 122°31'23" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/536713/5131367 (zone/easting/northing)
Quadrangle map:
Toutle Mountain
Inventory number
BH 40011 (Bridgehunter.com ID)

Categories 

Concrete balustrade (757)
Cowlitz County, Washington (34)
Destroyed by Lahar (1)
Lost (21,310)
Lost 1980 (75)
Lost during 1980s (1,162)
Owned by state (14,932)
Through truss (13,857)
 Total length 175-250 feet (4,019)
Toutle River (5)
Truss (30,963)
WA 504 (2)
Warren through truss (1,536)
Warren truss (6,079)
Washington (1,192)

Update Log 

  • September 9, 2009: New photo from Michael Goff
  • February 26, 2009: Added by Michael Goff

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • EarthWord: Lahar - Description of lahar and photo of destroyed bridge

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