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Massachusetts Route 99

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Route 99 marker
Route 99
Map
Route 99 highlighted in red
Route information
Maintained by MassDOT
Length6.67 mi[1] (10.73 km)
Major junctions
South endNorth Washington Street and Chelsea Street in Boston
Major intersections
North end US 1 in Saugus
Location
CountryUnited States
StateMassachusetts
CountiesSuffolk, Middlesex, Essex
Highway system
Route 98 Route 101

Route 99 is a 6.67-mile-long (10.73 km) north–south state highway in metropolitan Boston, leading from the Boston neighborhood of Charlestown through the northern suburbs of Everett, Malden, and Melrose, and terminating in Saugus at U.S. Route 1 (US 1).

Route description

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Route 99 begins where North Washington Street becomes New Rutherford Avenue on the north side of the Charlestown Bridge. This occurs at the intersection with Chelsea Street, situated above the northbound tunnel of U.S. Route 1. Route 99 travels as a limited access highway through Charlestown along New Rutherford Avenue, intersecting with ramps for U.S. Route 1 and passing under the Gilmore Bridge that connects Charlestown to Cambridge. New Rutherford Avenue becomes Rutherford Avenue and the route continues along it, until the route splits off into an underpass below Sullivan Square, where it turns northeastward. The route emerges to join Alford Street and crosses the Alford Street Bridge over the Mystic River. After passing through a small strip of Charlestown on the east banks of the river, the route enters Everett, loses its expressway features and limited-access status, and becomes Broadway.

From Everett, the route crosses through Sweetser Circle (the intersection with Route 16 and Revere Beach Parkway) and continues northeastward into the city of Malden, where it intersects Route 60. The route continues on through a short (0.25 miles (0.40 km)) corner of Melrose before entering Saugus. Once in Saugus the route terminates at ramps leading to U.S. Route 1.

History

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Prior to 1971, the portion north of the interchange with the Revere Beach Parkway (current Route 16, previously US Route 1 & MA Route 1A) was originally part of U.S. Route 1. The stretch south of the interchange to the Charlestown Bridge originally had no known route number assigned to it.

When it became designated as Route 99 circa 1971, its southern terminus was on the Charlestown Bridge, but this was moved to its present location following the Big Dig.[citation needed]

The Sweetser Circle has been the site of numerous major accidents, including a gas tanker rollover early on December 5, 2007 that resulted in 9,400 U.S. gallons (36 kL) spilling, igniting and destroying 21 vehicles and two large multi-family homes.[2]

Major intersections

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Route 99, as observed from the Bunker Hill Community College skywalk in Charlestown.
CountyLocationmikmDestinationsNotes
SuffolkBoston0.00.0
I-93 south / North Washington Street / Chelsea Street – Storrow Drive, North Station, Government Center, City Square
Southern terminus
0.20.32
US 1 north – Tobin Bridge
From southbound / to northbound U.S. Route 1
MiddlesexEverett2.54.0
Route 16 to US 1 – Medford, Somerville, Chelsea
Main Street – Malden, Melrose
Sweetser Circle: Access to Revere Beach Parkway
Malden4.87.7 Route 60 – Malden, Medford, Revere, Lynn
EssexSaugus6.710.8 US 1 – Peabody, Newburyport, BostonNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

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  1. ^ MassGIS Data: Massachusetts Department of Transportation (MassDOT) Roads
  2. ^ Abel, David; Ellement, John R. (2007-12-06). "Tanker truck crashes, flooding Everett neighborhood with flames". The Boston Globe.
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KML is from Wikidata