JACKSON, Amador County (CBS/AP) — State officials are warning that a 99-year-old dam in Northern California is at risk of collapsing if a big rainstorm comes through.
The concrete Eastwood Multiple Arch Dam in Jackson was built in 1916 and holds back large quantities of arsenic-contaminated tailings left over from gold mining.READ MORE: Newsom Signs Executive Order On Workplace Pandemic, Mask Rules Following Cal/OSHA Vote
In June, the U.S. Army Corps of Engineers found that the dam was structurally unsound.READ MORE: East Palo Alto To Receive About $7M In Federal COVID-19 Recovery Funding
California Department of Toxic Substance Control officials say they recently began a $1 million emergency repair operation that is expected to be completed this month.
The city of Jackson says the National Weather Service will issue a warning if rainfall amounts reach certain levels that could exacerbate the dam’s structural problems.MORE NEWS: San Jose Mom Samantha Rodriguez Waives Extradition In Son's Murder Case; Returning To Las Vegas
TM and © Copyright 2015 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2015 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten. The Associated Press contributed to this report.