Skip to Highlights

Pursuant to a congressional request, GAO reviewed the Army Corps of Engineers' environmental impact statement (EIS) of the Lower Snake River dams, focusing on: (1) extent to which the Corps followed applicable procedures and guidelines in preparing the draft EIS; and (2) reasonableness of the methodology the Corps used to analyze and present the effects of breaching the dams, specifically with respect to electricity costs, transportation costs, and air quality.

Full Report