 Damage estimates were as high as $ 75 million , one third of which was due to bridges and roads , and the remainder of the costs were structure @-@ related . The American Red Cross compiled damage statistics in the county and the totals included 906 damaged homes and apartments . Almost half of those were severely damaged and an additional 200 homes were destroyed . In Petrolia , the post office , three businesses , and 44 homes were destroyed , and another 68 residences were damaged . In Ferndale , 29 homes were destroyed and 126 were damaged , along with 51 businesses . In Rio Dell , 127 buildings were damaged or destroyed . With 98 homes and 41 businesses experiencing some form of damage , the city of Fortuna experienced losses totaling $ 3 @.@ 8 million . Eureka and Arcata ( 25 miles ( 40 km ) north of the Eel River valley ) saw light damage and no injuries , while the unincorporated communities of <unk> and Carlotta reported damage of less than $ 2 million combined . 
