Lake Oroville Dam Spillway Tour 7-11-2018 - MNG-Chico

Geologists map cracks as they check bedrock before concrete goes on a section of the upper chute of the spillway seen during a tour of ongoing construction at the Lake Oroville Dam Spillway area Wednesday, July 11, 2018. (Bill Husa -- Enterprise-Record)

0713NWSCERSpillwayTourbh68HusaChico EnterpriseRecord