Toutle River in flood
The mouth of the Toutle River in flood near Castle Rock, Washington. The Interstate-5 bridge is in the background. The photo was taken prior to the 1980 eruption of Mt. St. Helens.
USACE sediment retention structure Toutle River
A dam on the North Fork of the Toutle River in Cowlitz County, Washington, USA. This dam was constructed 1986–1989 by the U.S. Army Corps of Engineers to retain some of the sediment in the Toutle River flowing... More
Cowlitz - 2
Cowlitz
Dredging Toutle River
Source USGS (http://volcanoes.usgs.gov/Imgs/Jpg/MSH/30210599-087_large.jpg)
Kid Valley bridge on SR 504, July 1980
The Kid Valley bridge, carrying State Route 504 over the North Fork Toutle River, was left intact after the lahar of Mount St. Helens's May 1980 eruption destroyed the highway's other major bridges.
North Fork Toutle River valley in November 1983
This downstream view of the North Fork Toutle River valley, north and west of St. Helens, shows part of the nearly 2/3 cubic miles (2.3 cubic kilometers) of debris avalanche that slid from the volcano on May 18... More
St Helens and nearby area from space
Satellite picture of Mount St. Helens and its surrounding features, changed by the 1980 eruption, in southwestern Washington state.