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Kennebec River

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Title: Kennebec River  
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Subject: Acadia, Augusta, Maine, Hallowell, Maine, List of lighthouses in the United States, Sagadahoc Bridge
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Kennebec River

Kennebec River
Wyman Lake on the Kennebec River in Somerset County, Maine
Origin Moosehead Lake
Mouth Gulf of Maine, North Atlantic Ocean
Basin countries United States
Length 170 miles (270 km)
Source elevation 1,024 feet (312 m)
Avg. discharge 9,111 cu ft/s (258.0 m3/s)
at its entrance to Merrymeeting Bay
Basin area 5,869 sq mi (15,200 km2)
The course of the Kennebec River
A U.S. Coast Guard cutter breaks ice on the Kennebec River near Bath, Maine; March 2005
The Kennebec at the capital city of Augusta, Maine

The Kennebec River is a 170-mile-long (270 km)[1] river that is entirely within the U.S. state of Maine.

It rises in Moosehead Lake in west-central Maine. The East and West Outlets join at Indian Pond and the river then flows southward from Harris Station Dam, the largest hydroelectric dam in the state. It is joined at The Forks by the Dead River, also called the West Branch,[2] then continues southward past the cities of Madison, Skowhegan, Waterville, and the state capital Augusta. At Richmond, it flows into Merrymeeting Bay, a 16-mile-long (26 km) freshwater tidal bay into which also flow the Androscoggin River and five smaller rivers. The Kennebec then runs past the shipbuilding center of Bath, thence to the Gulf of Maine in the Atlantic Ocean. Ocean tides affect the river height as far north as Augusta. Tributaries of the Kennebec River include the Carrabassett River, Sandy River, and Sebasticook River.

The name "Kennebec" comes from the Eastern Abenaki /kínipekʷ/, meaning "large body of still water, large bay".[3]


  • History 1
    • Shipbuilding 1.1
    • Father Rale's War 1.2
    • Navigation 1.3
    • War of 1812 1.4
    • Ice industry 1.5
    • Edwards Dam 1.6
    • Flood of 1987 1.7
  • Natural resources 2
  • Statistics 3
  • See also 4
  • References 5
  • External links 6


The Kennebec River just south of Bath

The Abenaki village of Norridgewock was located on the Kennebec in the 1600s.


The English Popham Colony was founded on the Kennebec in 1607. The settlers there built the Virginia of Sagadahoc, the first oceangoing vessel built in the New World by English-speaking shipwrights. Hundreds of wooden and steel vessels have since been launched on the Kennebec, particularly in Bath, the so-called "City of Ships", including the Wyoming, one of the largest wooden schooners ever built. The sole remaining shipyard is the Bath Iron Works, one of the few yards still building warships for the United States Navy. The USCGC Kennebec was named after this river.

An English trading post, Cushnoc, was established on the Kennebec in 1628.

Father Rale's War

England's 1710 conquest of Acadia brought mainland Nova Scotia under its control, but New France still claimed present-day New Brunswick and present-day Maine east of the Kennebec River. (The Kennebec River was also a border for the Natives. [4]) To secure its claim, New France established Catholic missions in the three largest native villages in the region: one on the Kennebec River (Norridgewock); one further north on the Penobscot River (Penobscot) and one on the Saint John River (Medoctec).[5][6] The dispute led to Father Rale's War (1722–1725), which ended with the defeat of Father Rale at Norridgewock, the retreat of the native population from the Kennebec and Penobscot Rivers, and England's dominion over Maine.


The Kennebec River was an early trade corridor to interior Maine from the Atlantic coast. It was the route followed by 1,110 American Revolutionary War soldiers during Benedict Arnold's expedition to Quebec in 1775. Ocean ships could navigate upstream to Augusta. The cities of Bath, Gardiner, Hallowell and Augusta, and the towns of Woolwich, Richmond and Randolph developed adjacent to that transportation corridor. The river upstream of Augusta became an important transportation corridor for log driving to bring wooden logs and pulpwood from interior forests to sawmills and paper mills built to use water power where the city of Waterville and the towns of Winslow, Skowhegan, Norridgewock, Madison, Anson, and Bingham developed. The Maine Central Railroad and U.S. Route 201 were later constructed following the river through these towns and cities.[7]

War of 1812

During the War of 1812, near the Kennebec River, the Battle of Hampden was fought in Maine.

Ice industry

In 1814, Frederic Tudor began to establish markets in the West Indies and the southern United States for ice. In 1826, Rufus Page built the first large ice house near Gardiner to supply Tudor. The ice was harvested by farmers and others who were inactive due to the winter weather. The ice was cut by hand, floated to an ice house on the bank, and stored until spring. Then, packed in sawdust, it was loaded aboard ships and sent south.[8]

Edwards Dam

The Kennebec River before the construction of Edwards Dam was extremely important as a spawning ground for Atlantic fish. In 1837, the Edwards Dam was built across the Kennebec River, just shy of the limit of tidal influence. Made of timber and concrete, it extended 917 feet (280 m) across the river and 25 feet (7.6 m) high. Its reservoir stretched 17 miles (27 km) upstream, and covered 1,143 acres (4.63 km2). In 1999, the dam was removed.

Flood of 1987

On April 1, 1987, over 6 feet (1.8 m) of melting snow and 4 to 6 inches (100 to 150 mm) of rain in the mountains forced the river to flood its banks. By April 2, 1987, the river had crested at 34.1 ft (10.4 m) above the normal 13 ft (4.0 m) flood stage, meaning the river rose 21 ft (6.4 m). At the flood's peak, the flow topped out at an estimated 194,000 cubic feet per second (5,500 m3/s). It caused about $100 million in damage (171 million in 2008 dollars),[9] flooding 2,100 homes, destroying 215, and damaging 240 others. Signs of the flood can still be found around the towns and cities that line the river.

Natural resources

Prior to the industrial era, the river contained many anadromous fish, in particular the Atlantic salmon. The exploiting of hydroelectric power in the region reduced the runs of such fish. The removal of dams on the river has been a controversial local issue in recent years. The removal of the Edwards Dam in 1999 has led to increased anadromous activity on the river.


The river drains a total area of 5,869 square miles (15,200 km2), and on average discharges 5.893 billion US gallons (22,310,000 m3) per day into Merrymeeting Bay at a rate of 9,111 cubic feet per second (258.0 m3/s). The United States government maintains three river flow gauges on the Kennebec river. The first is at Indian Pond () where the rivershed is 1,590 square miles (4,100 km2). Flow here has ranged from 161 to 32,900 cubic feet per second (4.6 to 931.6 m3/s). The second is at Bingham () where the rivershed is 2,715 square miles (7,030 km2). Flow here has ranged from 110 to 65,200 cu ft/s (3.1 to 1,846.3 m3/s). The third is at North Sidney () where the rivershed is 5,403 square miles (13,990 km2). Flow here has ranged from 1,160 to 232,000 cu ft/s (33 to 6,570 m3/s). Two additional river stage gauges (no flow data) are in Augusta () and Gardiner (); both of these gauge heights are affected by ocean tides.[10]

Before the river was dammed, it was navigable as far as Augusta.

See also


  1. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed June 30, 2011
  2. ^ John F. Hall, The Upper Kennebec Valley, p. 7. The main stem from Indian Pond was sometimes called the East Branch.
  3. ^  
  4. ^ Twelve Thousand Years: American Indians in Maine By Bruce Bourque p. 144
  5. ^ "Meductic Indian Village / Fort Meductic National Historic Site of Canada". Parks Canada. Retrieved December 20, 2011. 
  6. ^ John Grenier, The Far Reaches of Empire. University of Oklahoma Press, 2008, p. 51, p. 54.
  7. ^ Delorme Mapping Company The Maine Atlas and Gazetteer (13th edition) (1988) ISBN 0-89933-035-5 maps 6,12,13,20,21&30
  8. ^ Maine's Ice Industry by Richard Judd in Maine The Pine Tree State form Prehistory to the present
  9. ^
  10. ^ G.J. Stewart, J.P. Nielsen, J.M. Caldwell, A.R. Cloutier (2002). "Water Resources Data - Maine, Water Year 2001" (PDF). Water Resources Data - Maine, Water Year 2001. Retrieved 7 June 2009. 

External links

  • Kennebec River profile
  • Real-time flow or stage data for the The Forks, Bingham, North Sidney, Augusta, and Gardiner gages.
  • Kennebec-Chaudiere Kennebec-Chaudiere International Corridor
  •  "Kennebec". The New Student's Reference Work. 1914. 
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