from The Century Dictionary and Cyclopedia
- n. A swing- or swivel-bridge; a pivot-bridge. Also turning-bridge. E. H. Knight. See cut under bridge.
Sorry, no etymologies found.
The turn-bridge was open; and Bobby to his delight was allowed to stand up in his seat and watch the wallowing, churning little tug and the three calm ships pass through.
Then when the last mast had scarcely cleared the opening, the ponderous turn-bridge began slowly to close.