Mississippi Sound
Encyclopedia
Sound (geography)
In geography a sound or seaway is a large sea or ocean inlet larger than a bay, deeper than a bight and wider than a fjord; or it may be defined as a narrow sea or ocean channel between two bodies of land ....
along the Gulf Coast of the United States
Gulf Coast of the United States
The Gulf Coast of the United States, sometimes referred to as the Gulf South, South Coast, or 3rd Coast, comprises the coasts of American states that are on the Gulf of Mexico, which includes Texas, Louisiana, Mississippi, Alabama, and Florida and are known as the Gulf States...
. It runs east-west along the southern coasts of Mississippi
Mississippi
Mississippi is a U.S. state located in the Southern United States. Jackson is the state capital and largest city. The name of the state derives from the Mississippi River, which flows along its western boundary, whose name comes from the Ojibwe word misi-ziibi...
and Alabama
Alabama
Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...
, from Waveland, Mississippi
Waveland, Mississippi
Waveland is a city located in Hancock County, Mississippi, on the Gulf of Mexico. It is part of the Gulfport–Biloxi, Mississippi Metropolitan Statistical Area. The City of Waveland was incorporated in 1972. As of the 2000 census, the city had a total population of 6,674...
, to the Dauphin Island Bridge
Dauphin Island Bridge
The Dauphin Island Bridge, formally the Gordon Persons Bridge, carries a , two-lane section of Alabama State Route 193 from mainland Mobile County, Alabama across the Gulf Intracoastal Waterway to Dauphin Island. The natural channel followed by the Gulf Intracoastal Waterway at this location is...
, a distance of about 145 kilometers (90 mi). The sound is bordered on its southern edge by the barrier islands - Cat
Cat Island (Mississippi)
Cat Island is a barrier island off the Gulf Coast of the United States. The island is named for raccoons which Spanish explorers mistook for cats. It is unknown who discovered Cat Island. It was called Isle-aux-Chats and Isola de Gati in French and Italian, respectively. It is within the...
, Ship
Ship Island (Mississippi)
Ship Island is the collective name for two barrier islands off the Gulf Coast of Mississippi, part of Gulf Islands National Seashore: East Ship Island and West Ship Island. Hurricane Camille split the once single island into 2 separate islands in 1969...
, Horn
Horn Island (Mississippi)
Horn Island is a long, thin barrier island off the Gulf Coast of Mississippi, south of Ocean Springs. It is part of the Gulf Islands National Seashore. Horn Island is several miles long, but less than a mile wide at its widest point...
, Petit Bois
Petit Bois Island (Mississippi)
Petit Bois Island is an island off the coast of the U.S. state of Mississippi, south of Pascagoula. It is part of Jackson County, Mississippi. Since 1971 it has been a part of Gulf Islands National Seashore, administered by the U.S. National Park Service....
and Dauphin Islands - which are part of the National Park Service's Gulf Islands National Seashore
Gulf Islands National Seashore
Gulf Islands National Seashore offers recreation opportunities and preserves natural and historic resources along the Gulf of Mexico barrier islands of Florida and Mississippi. The protected regions include mainland areas and parts of 7 islands...
. Those islands separate the sound from the Gulf of Mexico
Gulf of Mexico
The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...
.
Large portions of the Mississippi Sound reach depths of about 6 meters (20 ft). Part of the Gulf Intracoastal Waterway
Gulf Intracoastal Waterway
The Gulf Intracoastal Waterway is the portion of the Intracoastal Waterway located along the Gulf Coast of the United States. It is a navigable inland waterway running approximately 1700 kilometers from Carrabelle, Florida, to Brownsville, Texas.The waterway provides a channel with a controlling...
traverses the sound with a project depth of 3.6 meters (12 ft). The waterway, maintained by the US Army Corps of Engineers
United States Army Corps of Engineers
The United States Army Corps of Engineers is a federal agency and a major Army command made up of some 38,000 civilian and military personnel, making it the world's largest public engineering, design and construction management agency...
, is designed for towboat
Towboat
Not to be confused with the historic boat type with the same name, also called horse-drawn boat.A towboat is a boat designed for pushing barges or car floats. Towboats are characterized by a square bow with steel knees for pushing and powerful engines...
and barge
Barge
A barge is a flat-bottomed boat, built mainly for river and canal transport of heavy goods. Some barges are not self-propelled and need to be towed by tugboats or pushed by towboats...
traffic. Most of its route through the sound is merely an imaginary line through water whose depth exceeds the project depth. A section west of Cat Island and the portion north of Dauphin Island rely on dredged channels marked by aids to navigation maintained by the US Coast Guard
United States Coast Guard
The United States Coast Guard is a branch of the United States Armed Forces and one of the seven U.S. uniformed services. The Coast Guard is a maritime, military, multi-mission service unique among the military branches for having a maritime law enforcement mission and a federal regulatory agency...
.
Deepwater ports along the sound include Gulfport
Gulfport, Mississippi
Gulfport is the second largest city in Mississippi after the state capital Jackson. It is the larger of the two principal cities of the Gulfport-Biloxi, Mississippi Metropolitan Statistical Area, which is included in the Gulfport-Biloxi-Pascagoula, Mississippi Combined Statistical Area. As of the...
and Pascagoula
Pascagoula, Mississippi
Pascagoula is a city in Jackson County, Mississippi, United States. It is the principal city of the Pascagoula, Mississippi Metropolitan Statistical Area, as a part of the Gulfport–Biloxi–Pascagoula, Mississippi Combined Statistical Area. The population was 26,200 at the 2000 census...
. Dredged ship channels running basically north-south connect those ports to the Gulf of Mexico, running between pairs of the barrier islands.
The Pascagoula River
Pascagoula River
The Pascagoula River is a river, about 80 mi long, in southeastern Mississippi in the United States. The river drains an area of about 8,800 sq mi and flows into Mississippi Sound of the Gulf of Mexico....
flows into the sound.