Massachusetts Route 18

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"MA 18" redirects here. MA 18 may also refer to Massachusetts's 18th congressional district.

Route 18 marker

Route 18
Route information
Maintained by MassDOT
Length: 41.59 mi[1] (66.93 km)
Major junctions
South end: US 6 in New Bedford[1]
  I‑195 in New Bedford
I‑495 in Middleborough
US 44 / Route 28 in Middleborough
Route 3 in Weymouth
North end: Route 53 in Weymouth
Counties: Bristol, Plymouth, Norfolk
Highway system
Route 17 Route 19

Route 18 is a south–north state highway in southeastern Massachusetts. Beginning in the city of New Bedford, it runs as a freeway for approximately 2 miles (3.2 km), continuing as a surface street until Weymouth.

Route description[edit]

Southbound entering Bridgewater

Route 18 starts as a four-lane freeway, a continuation of John F. Kennedy Memorial Highway in downtown New Bedford, at U.S. Route 6. After the intersection with I-195, Route 18 runs via surface streets parallel to Route 140 for a while, up to a connector road with Route 140 northbound. (Before its highway route was constructed, Route 140 followed County Road from Taunton until terminating at Route 18 in Freetown near the New Bedford line.) Route 18 then continues on a generally northerly direction. The highway goes through the East Freetown section of Freetown, Lakeville (with a three-mile (5 km) concurrency with Route 105 along Assawompset Pond), Middleborough, where the highway meets U.S. Route 44 and Route 28 at the Middleboro rotary just north of Interstate 495, beginning a six-mile (10 km) concurrency with Route 28 until the center of Bridgewater, East Bridgewater, Whitman, Abington, and Weymouth, ending at Route 53.

Highway improvements[edit]

A major fault of Route 18 north of Bridgewater is its intersection patterns. At all lights north of Bridgewater center, the road widens to four lanes temporarily, before and after the intersection. While this helps alleviate backups at the lights and assists vehicles turning left off of the route, it creates bottlenecks after the intersection, where the two lanes re-merge into one.[2] To help this, the Massachusetts Department of Transportation's Highway Division will be widening the section of Route 18 from Highland Place in Weymouth to Route 139 in Abington from two to four lanes. The $26 million project was originally planned to begin in 2013, but had yet to break ground as of July 2014.

Major intersections[edit]

County Location mi km Destinations Notes
Bristol New Bedford 0.00 0.00 JFK Memorial Highway south – Downtown New Bedford Southern terminus
0.00 0.00 US 6 – Dartmouth, Fairhaven No southbound entrance; No northbound access to US 6 west
0.30 0.48 Hillman Street Northbound entrance only
0.50 0.80 Purchase Street Southbound exit only
Weld Street Southbound exit only
1.1 1.8 I‑195 – Fall River, Cape Cod Exit 15 on I-195; Northbound exit and southbound entrance
Coggeshall Street Northern terminus of freeway section
4.6 7.4 Route 140 north – Taunton, Boston Exit 6 on Route 140; Southbound exit and northbound entrance via Ashley Boulevard
MA Route 140.svg Braley Road to Route 140
East Freetown MA Route 140.svg Mason Road to Route 140 – East Freetown
Plymouth Lakeville 13.40 21.57 Route 105 south – Rochester Southern terminus of concurrency with Route 105
16.10 25.91 Route 105 north / Precinct Street – Middleboro, Plymouth Northern terminus of concurrency with Route 105
18.00 28.97 Route 79 – Middleboro, Fall River
Middleborough 19.60 31.54 I‑495 to Route 24 – Cape Cod, Marlboro, Boston Exit 5 on I-495
20.00 32.19 US 44 / Route 28 south to I‑495 – Middleboro, Plymouth, Taunton, Marlboro Rotary; Southern terminus of concurrency with Route 28
Bridgewater 26.10 42.00 Route 104 west – Taunton Southern terminus of an ellipse rotary; Southern terminus of concurrency with Route 104
26.20 42.16 Route 28 north / Route 104 east – Kingston, West Bridgewater, Brockton Northern terminus of an ellipse rotary; Northern terminus of concurrencies with Routes 28 and 104
East Bridgewater 28.00 45.06 Route 106 west – West Bridgewater Southern terminus of concurrency with Route 106
28.2 45.4 Route 106 east Northern terminus of concurrency with Route 106
Whitman 32.0 51.5 Route 14 – Brockton, Hanson Site of the Toll House Inn (birthplace of the chocolate chip cookie) northwest of here
32.7 52.6 Route 27 – Brockton, Kingston
Abington 34.5 55.5 Route 123 – Brockton, Hanover
36.1 58.1 Route 139 – Holbrook, Rockland
Norfolk Weymouth 37.7 60.7 Route 58 south – Rockland Northern terminus of Route 58
40.5 65.2 Route 3 – Boston, Cape Cod Exit 16 on Route 3
41.59 66.93 Route 53 – Braintree, Quincy, Hanover Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Route map: Bing / Google

  1. ^ a b Executive Office of Transportation, Office of Transportation Planning - 2005 Road Inventory
  2. ^ Christian Schiavone (25 April 2013). "Weymouth residents object to Route 18 widening plan". Gatehouse Media, Inc. Retrieved 21 March 2015.