At the shipyard, they will be lengthened, widened and reinforced with new bulkheads, tanks and other equipment, much of it required by Coast Guard rules for passenger ferries, he said.

Source: https://vineyardgazette.com/news/2023/04/07/ssa-votes-27-million-contract-convert-two-freight-ferries

Catfish are mid to lower lake on bulkheads and bridges on shad.

Source: https://thepostnewspaper.net/2023/12/30/fishing-forecast-257/

Some catfish are staying close to bulkheads waiting for the shad spawn to resume.

Source: https://thepostnewspaper.net/2023/04/22/fishing-forecast-224/

The problem, originating from misshaped and inaccurately drilled holes in certain aft pressure bulkheads supplied by Spirit Aerosystems Holdings, Inc. has since been addressed.

Source: https://www.benzinga.com/markets/equities/23/10/35478637/boeing-under-siege-reportedly-addresses-data-leak-threat-from-russian-cyber-gang