Blackwater River (Virginia)

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The Blackwater River of southeastern Virginia flows from its source near the city of Petersburg, Virginia for about 105 miles (170 km) through the Inner Coastal Plain region of Virginia (part of the Atlantic Coastal Plain). The Blackwater joins the Nottoway River to form the Chowan River, which empties into Albemarle Sound. The Blackwater-Nottoway confluence forms the boundary between Virginia and North Carolina.

The Blackwater River is a true blackwater river. Its water is clear, dark, slightly acidic, and tannin stained. Its drainage basin contains many swamps. The river's flood plain is mostly forested and swampy, including bald cypress and tupelo swamp forests. The upper Blackwater River is called Blackwater Swamp. In this region of Virginia, many streams are called "swamps" but still function like streams in being long and linear, with water moving from one end to the other and laid out in a normal stream tributary network. In contrast, some of the region's wetlands are not streams, such as the bog-like pocosins found on the higher land between swamp-stream drainages.

The Blackwater River was a transportation route in the 17th and 18th centuries, connecting the Chesapeake Bay settlements with the Albemarle Settlements. It was one of the few rivers of colonial Virginia that did not empty into Chesapeake Bay yet lay close to the colony's oldest settlements on the James River. Settlements in the Blackwater's drainage basin were founded very early in Virginia's history. As a result, the Blackwater River became one of the early migration routes southward from the James River into the region then called Southside Virginia, and beyond into the Albemarle District of Carolina (later North Carolina). Today's usual definition of Southside (Virginia) differs somewhat from that of colonial times.

1 Course
2 Natural History
3 Colonial and later history
4 Flooding
5 External Links

[edit] Course

The Blackwater River originates just south of the city of Petersburg, Virginia in several swamps. It flows southeast through Prince George County, where it is called Blackwater Swamp. It then forms part of the border between Surry County and Sussex County, where its name becomes Blackwater River. It collects tributaries called Warwick Swamp, Otterdam Swamp, Coppahaunk Swamp, and Cypress Swamp. In southern Surry County, the Blackwater River turns south and forms the border between Isle of Wight County and Southampton County. It collects tributaries called Terrapin Swamp, Antioch Swamp Seacock Swamp, Corrowaugh Swamp, and Kingsale Swamp.

The city of Franklin, Virginia, lies on its west bank at the river's head of navigation. While canoes and other small boats plied the Blackwater upstream of Franklin in colonial times (and still do today), in the steamboat era, navigation was restricted to the river downstream of Franklin.

South of Franklin, the Blackwater River forms the border between Southampton County and Suffolk, Virginia.

About nine miles (14 km) south of Franklin, on the border between Virginia and North Carolina, the Blackwater River is joined by the Nottoway River, forming the Chowan River, which continues south to Albemarle Sound. The boundary between Virginia and North Carolina runs west from the Atlantic Ocean, striking the Blackwater River about a half mile (1 km) north of the confluence with the Nottoway River. From there the state line follows the Blackwater River south to the confluence, then continues west.

The watershed of the Blackwater River contains a portion of eight counties of Virginia: Franklin (City) County, Isle of Wight County, Petersburg (City) County, Prince George County, Southampton County, Suffolk (City) County, Surry County, and Sussex County.

[edit] Natural History

The Blackwater River is, as its name implies, a blackwater river—its waters are clear, dark, acidic, low in nutrients, and tannin stained. Several environmental factors cause the blackwater condition. The many forested wetlands along the river include Streamhead Pocosins and Bald Cypress and Tupelo Swamps.

The Blackwater is known for its pocosins, including the rare type called streamhead pocosin. The only two streamhead pocosins known in Virginia are on the Blackwater River.

Bald Cypress and Tupelo Swamps occur along many streams of the Atlantic Coastal Plain. Most were logged, thus old-growth examples are rare. The Blackwater River Preserve protects one of the oldest bald cypress and tupelo swamp forests in the South, with trees up to 800 years old. Another stand of old-growth bald cypress and tupelo forest, known as Dendron Swamp, was recently designated a Natural Area Preserve by the Virginia Department of Conservation of Recreation.

Another rare type of forest found along the Blackwater River is a type called Longleaf Pine and Mixed Pine Flatwoods. The forests were once common but today are restricted to a few small sites on the east side of the Blackwater River. Near the town of Zuni, Virginia, one stand is protected by the Blackwater Ecological Preserve.

The many old forests and wetlands along the Blackwater River have made it popular for recreational canoeing.

[edit] Colonial and later history

In 1646, after two years of war between the Virginia colony and the Powhatan confederation, a peace treaty was agreed to by the leaders of the two sides (Governor William Berkeley and Chief Necotowance). The treaty set the southern boundary between Virginia and Indian lands at the Blackwater River (or Blackwater Swamp).

By the late 17th century, some settlers from Virginia were crossing the Blackwater boundary and settling in territory of Indian tribes such as the Nottoway. The government of Virginia repeatedly ordered such people to return north of the river and would not allow land south of the river to be surveyed for land grants. In 1685, the House of Burgesses asked Governor Howard for permission to grant some land south of the Blackwater River. The governor denied the request. In 1690, another order was given, demanding all settlers south of the river to return north.

The Indians, however, asked in 1688 for settlers to move south of the Blackwater. The reason for the request is unclear, but may have been because of "precarious economic conditions" and fear of attack and invasion by other tribes. By 1705, the Blackwater boundary law was revoked and settlements south of the river became legal.

Transportation in early colonial Virginia was usually done by water. The many wide estuaries and wetlands made land transport difficult, especially when moving goods. Migration and settlement patterns thus tended to follow the rivers, most of which flowed from the west and emptied into Chesapeake Bay. The Blackwater River was an exception. It flowed south to Albemarle Sound. The Blackwater's headwaters were close to the main settlements along the James River (some within three miles). By the early 1700s, Virginians were living along the upper Blackwater River and using the river for travel and transportation. The political authority of Virginia was centered on Chesapeake Bay. Most of the other rivers used for travel in Virginia at the time emptied into the bay, which helped Virginia's government control the colony's affairs. The settlers using the Blackwater River, however, were drawn away from Chesapeake Bay to the relatively lawless settlements of Albemarle Bay. This played a role in the emerging "southside" society, as the region "south of the James River" became known.

During the American Civil War, the Blackwater River was for a time the dividing line between Union-occupied territory and Confederate Virginia. The boundary was not well defended, allowing thousands of "contrabands" (as the slaves were called during the war) the chance to flee east out of Southampton County, across the Blackwater River and into freedom.

[edit] Flooding

Because the Blackwater River drains a large area of southern Virginia east of the fall line, when heavy rainfall occurs throughout the area, severe flooding occasionally occurs at several points as the large volume of water flows downstream. Critical points of such flooding have been near Zuni along U.S. Route 460, and in the independent city of Franklin, which boarders Southampton County and Isle of Wight County. Unlike the marshy areas upstream, at these points the river's channel is limited, and flood stages can be reached very quickly. This occurred during Hurricane Floyd in 1999, and again in October 2006, after an unnamed Nor'-Easter storm dumped 10 inches (25 cm) of rain on the region.