Sutter Basin, California: Sutter Basin Pilot Feasibility Final Report. Final Environmental Impact Report/Supplemental Environmental Impact Statement.

摘要

The primary purpose of the Sutter Basin Project is to reduce overall flood risk to the Sutter Basin study area consistent with the project goals. Recent geotechnical analysis and evaluation of historical performance during past floods indicate the existing project levees within the study area do not meet USACE levee design criteria and are at risk of failure. Approximately 26,783 structures throughout the study area are at risk of flooding in a 1% Annual Chance Exceedance (ACE) flood event (100?year event).