. >> fred kozlowski lives there and films the whole thing. he says. broken dock pieces ended up on a nearby island that was until wednesday, when another round of stormy weather and strong tides pulled some of the pieces back towards bethel island, this time hitting part of kozlowski's own dock as well as some of his neighbors. >> it was crazy. it first thing i thought was calling 911, kozlowski says. >> while he doesn't know how much damage wednesday's crash is done to his property, he estimates it could be anywhere from 30 to $50,000. >> all our neighbors got together, gathered ropes and tied it up so that it's not going to go down and do any more damage. >> prior to this week's incident, the marina dock had caused concern for years. contra costa county supervisor diane burgess, who represents this area, says the docks owner failed to keep up the property, resulting in unsafe conditions. it got so bad that contra costa officials interval in last summer to clean things up, despite it not normally falling under the county's responsibilities. now now,