Transformer fire caused apparent Hoover Dam explosion, officials say – WFTV Post published:July 20, 2022 Post category:Uncategorized CLARK COUNTY, Nev. — A transformer fire caused an apparent explosion reported Tuesday morning at the Hoover Dam, officials said. READ MORE Author: CIP-News Read more articles Previous PostSubstation explosion knocks out power to 11K in Rensselaer County – Times Union Next PostA transformer fire at Hoover Dam was quickly extinguished – WUNC