Next History for Mystic River

Before recorded history, Native Americans and then later Colonists used weirs to catch alewives and fertilize their crops. In 1631, after the arrival of the English, the first ship built by Europeans in Massachusetts, the Blessing of the Bay, launched from the river's shores. A few years later (1637) the first bridge was built; neighboring towns squabbled about the costs for more than a hundred years.

Over one hundred years later, the Mystic River played a role in the American Revolution when on September 1, 1774, a force of roughly 260 British regulars rowed from Boston up the Mystic River to a landing point near Winter Hill in today's Somerville. From there, they marched about a mile (1.6 km) to the Powder House where the largest supply of gunpowder in Massachusetts was kept, and after sunrise they removed all the gunpowder, sparking a popular uprising known as the Powder Alarm. In 1775, the Battle of Chelsea Creek took place in the river's watershed in May, and the British attacked via the river's beach in the Battle of Bunker Hill in June.

In 1805 the Middlesex Canal linked the Mystic to the Merrimack River in Lowell, and during the 19th century, 10 shipyards along the Mystic River built more than 500 clipper ships. Shipbuilding peaked in the 1840s as schooners and sloops transported timber and molasses for rum distilleries between Medford and the West Indies.

By 1865, overfishing and pollution all but eliminated commercial fishing.

Extensive salt marshes lined the banks of the Mystic until 1909, when the first dam (Craddock Locks) was built across the river, converting salt marsh to freshwater marsh and enabling development. Today's dam, named for Amelia Earhart, was built in 1966. It has three locks to allow the passage of boats, and is equipped with pumps to push fresh water out to the harbor even during high tide. Dam operators leave the locks open at times to allow the passage of fish. There is a fish ladder, but it has never been functional. The dam is closed to the public.

The Maurice J. Tobin Bridge also spans the Mystic River, joining Charlestown and Chelsea.

[edit] Wildlife

At one time, the Mystic River was home to great numbers of many species of fish, including salmon, alewife, blueback herring, striped bass, bluefish, smallmouth bass, largemouth bass, bluegill, carp, and more. Although most of these species still live in the Mystic River, pollution and dam building have severely damaged the populations. Pollution came from various mills and a small ship building yard in the past. The main source of pollution in the 20th century and into the present is from drainage from the adjoining cities. Many of the records of nearby drainage pipes have been lost, or have undocumented changes and diversions. Once described as having so many herring that one could cross the river on their backs, the Mystic River herring run is much smaller than it was in historic times. Pollution has raised bacteria levels and turbidity, making it unfavorable for fish to live in.

[edit] Crossings

Crossing	Carries	Location	Built	Coordinates
Tobin Bridge	Northeast Expressway	Charlestown to Chelsea	1950	42°23′05″N 71°02′51″W / 42.38483°N 71.04755°W / 42.38483; -71.04755
Malden Bridge	Alford Street	Charlestown to Everett		42°23′20″N 71°04′17″W / 42.38900°N 71.07139°W / 42.38900; -71.07139
	MBTA Commuter Rail (Newburyport/Rockport branches)	Somerville to Everett		42°23′35″N 71°04′28″W / 42.392976°N 71.074402°W / 42.392976; -71.074402
Amelia Earhart Dam		Somerville to Everett		42°23′42″N 71°04′30″W / 42.394881°N 71.075054°W / 42.394881; -71.075054
	MBTA Commuter Rail (Haverhill branch) and MBTA Orange Line	Somerville to Everett		42°23′48″N 71°04′38″W / 42.396631°N 71.077236°W / 42.396631; -71.077236
Wellington Bridge	Fellsway	Somerville to Medford		42°23′59″N 71°05′01″W / 42.39981°N 71.08356°W / 42.39981; -71.08356
	Mystic Valley Parkway	Medford		42°24′21″N 71°05′47″W / 42.40582°N 71.09646°W / 42.40582; -71.09646
	Interstate 93	Medford		42°24′53″N 71°06′14″W / 42.41472°N 71.10391°W / 42.41472; -71.10391
Craddock Bridge	Main Street	Medford		42°25′03″N 71°06′37″W / 42.417602°N 71.110164°W / 42.417602; -71.110164
	Mystic Valley Parkway	Medford		42°25′05″N 71°06′45″W / 42.418019°N 71.112588°W / 42.418019; -71.112588
	Winthrop Street	Medford		42°25′04″N 71°07′05″W / 42.417717°N 71.117941°W / 42.417717; -71.117941
	Mystic Valley Parkway	Medford		42°25′05″N 71°07′36″W / 42.418100°N 71.126741°W / 42.418100; -71.126741
	MBTA Commuter Rail (Lowell branch)	Somerville to Medford		42°25′04″N 71°07′43″W / 42.417835°N 71.128519°W / 42.417835; -71.128519
	Boston Avenue	Somerville to Medford		42°25′02″N 71°07′49″W / 42.417238°N 71.130416°W / 42.417238; -71.130416
	River Street / Harvard Avenue	Arlington to Medford		42°24′56″N 71°08′18″W / 42.415490°N 71.138361°W / 42.415490; -71.138361
	Medford Street / High Street	Arlington to Medford		42°25′14″N 71°08′34″W / 42.42054°N 71.14289°W / 42.42054; -71.14289

[edit] In popular culture

In 1844, Medford abolitionist and writer Lydia Maria Child described her journey across the Mystic to her grandfather's house in the poem "Over the River and Through the Woods." (Grandfather's House, restored by Tufts University in 1976, still stands near the river on South Street in Medford.) John Townsend Trowbridge's popular 1882 novel, The Tinkham Brother's Tide-Mill, had its setting along the river at a time when saltwater still reached the Mystic Lakes.