Its primary purpose is flood control but it also provides power, navigation improvement downstream and irrigation.

The damming of the river created Foster Reservoir, which is a popular fishing and water sports area.

Most injuries sustained by smolt (juvenile salmon) after they had passed through the weir were caused by the weir jet's shallow depth as well as the angle of the jet as it struck the spillway chute.

The study suggests that possible spillway weir design changes and increasing the depth of flow would improve fish safety.

This Linn County, Oregon state location article is a stub.