US Army Corps of Engineers
Portland District Website Website


Picture of a barges traversing a flooded Columbia RiverFlood attentuation provides a reduction in flood intensity and duration to the ecosystem.

The photo at right is an example of a flood event on the Columbia River.


Processes that affect flood attenuation:

Interactions and equations:


Contact information

Ronald Thom, Ph.D

Marine Research Operations, PNNL
1529 W. Sequim Bay Rd.
Sequim, WA 98382