Glossary of Marine Terms
G
gas free
the process of removing all hazardous gases and residues from the compartments of a vessel.
gauge
a waterway marker which measures the level of the water in foot increments; also refers to the specific measure on the gauge.
GIWW
Gulf Intracoastal Waterway.
gross tons
the volume measurement of the internal voids of a vessel wherein 100 cu. ft. equals one ton.
gunwale (gunnel)
that part of a barge or boat where the main deck and the side meet.
gusset
a steel plate used for reinforcing or bracing the junction of other steel members.