The Charles River Dam Bridge, officially the Craigie Bridge, also called Craigie's Bridge or the Canal Bridge, is a six-lane

bascule bridge A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. It may be single- o ...

across the

Charles River The Charles River ( Massachusett: ''Quinobequin)'' (sometimes called the River Charles or simply the Charles) is an river in eastern Massachusetts. It flows northeast from Hopkinton to Boston along a highly meandering route, that doubles b ...

in the West End neighborhood of

Boston Boston (), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th- mo ...

. The bridge, maintained by the

Massachusetts Department of Conservation and Recreation The Department of Conservation and Recreation (DCR) is a state agency of the Commonwealth of Massachusetts, situated in the Executive Office of Energy and Environmental Affairs. It is best known for its parks and parkways. The DCR's mission i ...

(DCR, formerly the MDC), carries

Massachusetts Route 28 Route 28 is a nominally south–north state highway in the U.S. state of Massachusetts, running from the town of Eastham via Boston to the New Hampshire state line in Methuen. Following the route from its nominally southern end, Route 28 i ...

(Charles River Dam Road at this location) next to the Green Line's

Lechmere Viaduct The Lechmere Viaduct is a concrete arch bridge connecting the West End neighborhood of Boston to East Cambridge, Massachusetts. Opened in 1912, the viaduct carries the MBTA's Green Line over the Charles River. It is adjacent to the Charles Riv ...

. The Museum of Science is located on the dam and nearby piers. Charles River Dam Road connects

Leverett Circle Leverett Circle is an intersection in Boston, Massachusetts. Completely rebuilt during the Big Dig, it is no longer a rotary. It marks the confluence of Storrow Drive, Charles River Dam Road ( Northern Artery), Nashua Street, Charles Street, ...

in the West End to

East Cambridge East Cambridge is a neighborhood of Cambridge, Massachusetts. Referred to in modern times as Area 1, East Cambridge is bounded by the Charles River and the Charlestown neighborhood of Boston on the east, the Somerville border on the north, Bro ...

, but most of the road is fixed, and the asymmetrically sited drawbridge is a short span entirely on the Boston side of the river. The original

lock Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock ...

for the Charles River was incorporated into the dam, just west of the Charles River Dam Bridge, but it was replaced by three parallel locks in the new

Charles River Dam The Charles River Dam is a flood control structure on the Charles River in Boston, Massachusetts, located just downstream of the Leonard P. Zakim Bunker Hill Memorial Bridge, near Lovejoy Wharf, on the former location of the Warren Bridge. His ...

, located further east, at the site of the old

Warren Bridge The Warren Bridge connected downtown Boston, Massachusetts with Charlestown from its construction in the 1820s until its demolition in 1962. It was replaced by the Charles River Dam in 1978. The Warren Bridge was requested in 1823 and charte ...

. The former lock at the Charles River Dam Bridge now allows water and small ships to flow freely. Taller ships require the opening of the drawbridge, operated by the Massachusetts Department of Transportation.

History

The first bridge on the site was known as the Canal Bridge, named after the

Middlesex Canal 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 ...

which ran from the Charlestown Mill Pond to Middlesex Village in East Chelmsford Massachusetts; later p/o Lowell. As an investment, businessman

Andrew Craigie Andrew Craigie (1754-1819) is best known for serving as the first Apothecary General of the Continental Army during the American Revolution. The one-time owner of the Longfellow House–Washington's Headquarters National Historic Site, Craigie dev ...

purchased the largely undeveloped farmland on the Cambridge side around

Lechmere Point Lechmere Square ( ) is located at the intersection of Cambridge Street and First Street in East Cambridge, Massachusetts. It was originally named for the Colonial-era landowner Richard Lechmere, a Loyalist who returned to England at the beginning ...

from various owners (including Mary Lechmere and heirs) in preparation for building the bridge. The investors incorporated in 1807 with a charter to build a bridge from Leverett Street in the

West End, Boston The West End is a neighborhood of Boston, Massachusetts, bounded generally by Cambridge Street to the south, the Charles River to the west and northwest, North Washington Street on the north and northeast, and New Sudbury Street on the east. Bea ...

to the eastern end of Lechmere Point. One-third of shares were owned by the Middlesex Canal Corporation. The bridge opened in 1809, and came to be known as Craigie's Bridge. The construction of the bridge prompted the laying out of roads to the center of Cambridge (now Cambridge Street, running to Harvard Square) and Somerville/Medford (Bridge Street, now Monsignor O'Brien Highway/

). Craigie and associates, who formed the Lechemere Point Corporation, benefited from the building boom that followed, spurred on by their efforts to expand the public street grid. Residential cross streets were constructed and some were named after investors (Otis, Thorndike, and Gore). The bridge was sold to the Hancock Free Bridge Corporation in 1846, and became toll-free on January 30, 1858. The current bridge was constructed in 1910, along with the dam that turned the lower Charles River from a tidal

estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...

into a fresh-water basin. This reduced the problematic odor from raw sewage flowing into the river by keeping the formerly tidal lands covered with water. It was completed on June 30, and greeted with a two-hour fireworks display that Fourth of July. Thousands of people watched from the new Boston Embankment (the early

Charles River Esplanade The Charles River Esplanade of Boston, Massachusetts, is a state-owned park situated in the Back Bay area of the city, on the south bank of the Charles River Basin. Description The limited-access parkway Storrow Drive forms the southern bounda ...

), which took the place of the former tidal flats. Construction of the Museum of Science began on the dam in 1948, and finished in 1951.

2010–2011 construction project

The Massachusetts Department of Transportation completed a 2-year project to rehabilitate the Craigie Bridge and to completely replace the drawbridge in 2011. The project required the closure of the Boston-bound lanes from November 6, 2010, through mid December 2010, and again from early February 2011 through mid-April 2011, necessitating traffic detours. This was paid for out of borrowed funds as part of the statewide Accelerated Bridge Program.

2019 bicycle safety project

In November 2018, a Boston University graduate student was killed by a dump truck while bicycling on the bridge as both turned right onto Museum Way. The next month,

MassDOT The Massachusetts Department of Transportation (MassDOT) oversees roads, public transit, aeronautics, and transportation licensing and registration in the US state of Massachusetts. It was created on November 1, 2009, by the 186th Session of t ...

announced that dedicated bicycle signals and protected bicycle lanes would be added in summer 2019, dropping automobile traffic to two lanes in each direction.State to begin work in June to improve bike safety on road near Museum of Science
/ref>

Footnotes

References

* {{Crossings navbox , structure = Crossings , place =

, bridge = Charles River Dam Bridge , bridge signs = , upstream =

Longfellow Bridge The Longfellow Bridge is a steel rib arch bridge spanning the Charles River to connect Boston's Beacon Hill neighborhood with the Kendall Square area of Cambridge, Massachusetts. The bridge carries Massachusetts Route 3, US Route 3, the MBTA R ...

, upstream signs = , downstream =

, downstream signs = ''MBTA Green Line'' Bascule bridges in the United States Bridges completed in 1810 Bridges completed in 1910 Bridges completed in 2011 Bridges in Boston Bridges over the Charles River Dams in Massachusetts Former toll bridges in Massachusetts Road bridges in Massachusetts Steel bridges in the United States West End, Boston

History

2010–2011 construction project

2019 bicycle safety project

See also

Footnotes

References