Beaver. Barrett - June 10-11, 1932 (continued p.5). purposes. This man dynamited the dam, with a great deal of destruction to fish but no beaver were reported killed. The beaver did not repair this dam in the fall and Mr. Barrett later burned it out. This burning removed most of the supporting timber from the back side of the dam. On this date, June 11, 1932, the beaver were repairing this big old dam some and had quit a quantity of water backed up above it. It was holding about half of its original capacity.