 The third biggest flood , cresting at 29 @.@ 8 feet ( 9 @.@ 1 m ) in Lock Haven , occurred on June 1 , 1889 , and coincided with the Johnstown Flood . The flood demolished Lock Haven 's log boom , and millions of feet of stored timber were swept away . The flood damaged the canals , which were subsequently abandoned , and destroyed the last of the canal boats based in the city . 
 The third biggest flood , cresting at 29 @.@ 8 feet ( 9 @.@ 1 m ) in Lock Haven , occurred on June 1 , 1889 , and coincided with the Johnstown Flood . The flood demolished Lock Haven <a href='null_genetive' title='1'><mark>'s</mark></a>log boom , and millions of feet of stored timber <a href='uninflect' title='2'><mark>were</mark></a> swept away . The flood damaged the canals , which <a href='uninflect' title='3'><mark>were</mark></a> subsequently abandoned , and destroyed the last of the canal boats based in the city . 
Da third biggest flood , cresting at 29 @.@ 8 feet ( 9 @.@ 1 m ) in Lock Haven , occurred on June 1 , 1889 , and coincided w tdaJohnstown Flood . The flood demolished Lock Haven  log boom , and millions of feet of stored timber was swept away . The flood damaged thdaanals , which was subsequently abandoned , and destroyed thedast of the canal boats based in the day .