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The Merrimack River (or Merrimac River, an occasional earlier spelling [1]) is a 117-mile-long (188 km) river [2] in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, [3] flows southward into Massachusetts, and then flows northeast until it empties into the Gulf of Maine at Newburyport.
The Middlesex Canal was a 27-mile (44-kilometer) barge canal connecting the Merrimack River with the port of Boston.When operational it was 30 feet (9.1 m) wide, and 3 feet (0.9 m) deep, with 20 locks, each 80 feet (24 m) long and between 10 and 11 feet (3.0 and 3.4 m) wide.
The location was chosen because of the water-power potential of the Merrimack River and the already-existing Pawtucket Canal, linking the Merrimack with the Concord River. [5] At Lowell, the Merrimack drops 9 metres (30 ft) over a distance of 2 kilometres (1.2 mi), thereby suitable to provide 7,460 kilowatts (10,000 hp).
The canal, dug in the 1820s, begins at the Pawtucket Canal just above Swamp Locks, and empties into the Merrimack River near the Boott Cotton Mills. The Merrimack Canal was the first major canal to be dug at Lowell exclusively for power purposes, and delivered 32 feet (9.8 m) of hydraulic head to the mills of the Merrimack Manufacturing Company ...
Sagamore Bridge: Circumferential Highway: Nashua and Hudson: 1973 (twinned in 2000) WN&R / B&M RR Bridge: 1847 WN&R Railroad - Abutments remain: Taylor Falls Bridge
The Concord River is a 16.3-mile-long (26.2 km) [1] tributary of the Merrimack River in eastern Massachusetts, United States. The river drains a small rural, suburban region northwest of Boston . As one of the most notable small rivers in U.S. history, it was the scene of an important early battle of the American Revolutionary War and was the ...
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The town's early growth paralleled improvements in transportation. Prior to incorporation, the Middlesex Canal, linking the Merrimack River to Boston, was completed through then Waterfield. It flourished from 1803 to 1836, until the Boston and Lowell Railroad completed a line which neatly bisected the town and provided it with two stations ...