Within 20 years the old river control structure will be destroyed, or fail* for reasons other than intentional decommissioning by the us government or its replacement. *The structure will be considered failed if for a month an average of 50% or greater la

Created by beo_shaffer on 2012-08-29; known on 2032-08-29

• beo_shaffer estimated 9% on 2012-08-29
• themusicgod1 estimated 50% on 2016-10-10