A pier fire at the Dorchester Yacht Club off the Southeast Expressway erupted late Wednesday afternoon and went to two alarms because of the difficulty of fighting it, the Boston Fire Department reports.

Divers went into the water to try to fight the fire on the bottom side of the yacht club's pier from below. Firefighters briefly lost water from one hose when somebody drove over it. The department's marine unit had to wait in Dorchester Bay for about 15 minutes until a bridge tender arrived to get the Morrissey Boulevard drawbridge up to let it through.