7 ▁million ▁of ▁damage ▁( about ▁$ 4 5 0 ▁million ▁in ▁ 2 0 1 5 ▁dollars ). ▁Although ▁Camb ria ▁Iron ' s ▁facilities ▁were ▁heavily ▁dam aged , ▁they ▁returned ▁to ▁full ▁production ▁within ▁a ▁year ▁and ▁a ▁half . ▁ ▁The ▁American ▁Society ▁of ▁Civil ▁Engine ers ▁launched ▁an ▁investigation ▁of ▁the ▁South ▁F ork ▁Dam ▁bre ach ▁immediately ▁after ▁the ▁flo od . ▁However , ▁the ▁report ▁was ▁delayed , ▁sub vert ed , ▁and ▁white w ashed , ▁before ▁being ▁released ▁two ▁years ▁after ▁the ▁dis aster . ▁A ▁detailed ▁discussion ▁of ▁what ▁happened ▁during ▁the ▁AS CE ▁investigation , ▁its ▁particip ating ▁engine ers , ▁and ▁the ▁science ▁behind ▁the ▁ 1 8 8 9 ▁flo od ▁was ▁published ▁in ▁ 2 0 1 8 . ▁ ▁Old ▁Over hol t ▁whis key ▁In ▁ 1 8 8 1 , ▁Fr ick , ▁already ▁wealth y , ▁took ▁control ▁of ▁his ▁grand father ' s ▁whis key ▁company , ▁Old ▁Over hol t . ▁Fr ick ▁split ▁ownership ▁with ▁Andrew ▁M ell on ▁and ▁one ▁Charles ▁W . ▁Mau ck ; ▁each ▁owned ▁one - third ▁of ▁the ▁company . ▁The ▁family ' s ▁whis key ▁company ▁was ▁a ▁sentiment al ▁side ▁business ▁for ▁Fr ick , ▁and ▁was ▁head qu arter ed ▁in ▁Pitts burgh ' s ▁Fr ick ▁Building . ▁In ▁ 1 9 0 7 , ▁as ▁prohib ition ▁became ▁more ▁popular ▁across ▁the ▁country , ▁Fr ick ▁and ▁M ell on ▁removed