 During its construction , numerous cave @-@ ins and landslides occurred because of the fragile and weak rock the tunnel passed through , and at one point , an outbreak of cholera forced work to stop . By October 1856 the tunnel was completed at a cost of $ 114 @,@ 600 , having been lined with a thick elliptical brick arch to hold back the earth . The Brookville Tunnel was used by the Virginia Central Railroad , and after 1868 , the line 's successor , the Chesapeake and Ohio Railroad . After the reorganization of the line in 1878 as the Chesapeake and Ohio Railway , the tunnel continued to be used until it was demolished and replaced by a cut during the construction of Interstate 64 in the 1960s and 1970s , at which point it was one of only two of Crozet 's original four tunnels still in use . 
