BOISE, IDAHO (AP) — Young salmon and steelhead migrating from the Columbia River Basin in unusually high flows face a potentially lethal problem in spillways at dams where increased nitrogen in the water can cause tissue-damaging trauma.

EPHRATA, Wash. (AP) — A crack in a spillway pier at the Wanapum Dam on the Columbia River is a serious situation, but not a threat of downstream flooding even in a worst-case scenario, a spokesman for the Grant County Public Utility District said.