DCHP-1 Online
log-boom Lumbering 
n. a barrier of logs or other timbers linked by chains and serving to restrain or enclose floating logs, pulpwood, etc.
See also: boom ((1)) ((n.))
- 1912 Now . . . on the left the river is gliding, a wide glassy tide spreading away to where dusk is thickening on the log-booms. . . .
- 1966 Log booms, loose logs, and boom boats were swept out of the bay.
- 1912 Now . . . on the left the river is gliding, a wide glassy tide spreading away to where dusk is thickening on the log-booms. . . .