The USCGC Greenbrier is a Kankakee class 75-foot river buoy tender which was built in 1990 by Avondale Shipyard Small Boat Division, New Orleans, Louisiana.

History
United States
Name	USCGC Greenbrier
Operator	United States Coast Guard
Builder	Avondale Shipyard Small Boat Division, New Orleans, Louisiana
Completed	1990
Homeport	Natchez, Mississippi
Identification	MMSI number: 366999524 Callsign: NAOA
Status	In service
General characteristics
Class and type	Kankakee class 75-foot river buoy tender
Displacement	172 tons
Length	75 ft (23 m)
Beam	24 ft (7.3 m)
Draft	5 ft (1.5 m)
Propulsion	2 diesel engines turning 2 shafts with 1,080 bhp
Speed	12 knots
Crew	19

The tenders push a specific-use 130 foot maintenance barge, with specialized cranes and equipment. The vessel has a 24 foot beam, 5 foot of draft, and displaces 172 tons (full load). There is a crew of 19 but only 13 racks on board. The Kankakee class ships were built to replace old vessels. These are powered by 2 diesel engines turning 2 shafts with 1,080 bhp, giving the vessels a capability of 12 knots (22 km/h; 14 mph)

The Greenbrier is based out of the Cutter Support Team Natchez Moorings on L.E. Barry Road, in Natchez, Mississippi, and was involved in Hurricane Katrina relief operations in September 2005.