Massachusetts Route 18
|Maintained by MassDOT|
|Length:||41.561 mi (66.886 km)|
|South end:||US 6 in New Bedford|
| 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|
Massachusetts Route 18 is a north–south 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 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.
The current routing of Route 18 was established in 1933 taking over what was the routing of Route 102 from Weymouth to Route 28 in Bridgewater (the remainder to Route 140 in Taunton became part of Route 104) running concurrently with Route 28 from Bridgewater to Middleboro, taking a new highway constructed in 1932 from Middleboro to Lakeville, running concurrently with Route 105 for a short distance before turning southwest and taking a route to end at Route 140 in Freetown. Around 1968 Route 18 arrived at its current terminus when extended further south along a highway parallel to Route 140 to end at U.S. 6. When first established in 1927, Route 18 ran on a different alignment from Route 123 in Rockland north to Route 3A in Hingham using Hingham Street in Rockland, Pond Street in Norwell and Main, Short, Leavitt and East Streets in Hingham. In 1931 the Hingham portion became part of the circumferential Route 128 and the remaining parts in Norwell and Rockland had the Route 18 designation removed in 1932.
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. 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.
|Bristol||New Bedford||0.000||0.000||Elm Street / JFK Memorial Highway – Downtown New Bedford||Continuation beyond US 6|
|0.031||0.050||US 6 – Dartmouth, Fairhaven||No southbound entrance; No northbound access to US 6 west|
|0.256||0.412||Hillman Street||Northbound entrance only|
|0.418||0.673||Purchase Street||Southbound exit only|
|0.881||1.418||Weld Street||Southbound exit only|
|1.241||1.997||I‑195 – Fall River, Cape Cod||Northbound exit and southbound entrance; exit 15 on I-195|
|1.375||2.213||Coggeshall Street||Northern terminus of freeway section|
|4.811||7.743||Route 140 north – Taunton, Boston||Exit 6 on Route 140; access via Ashley Boulevard|
|6.599||10.620||Braley Road to Route 140|
|East Freetown||9.427||15.171||Mason Road to Route 140 – East Freetown|
|Plymouth||Lakeville||13.508||21.739||Route 105 south – Rochester||Southern terminus of concurrency with Route 105|
|16.193||26.060||Route 105 north – Middleboro, Plymouth||Northern terminus of concurrency with Route 105|
|18.097||29.124||Route 79 – Middleboro, Assonet, Fall River|
|I‑495 to Route 24 – Wareham, Cape Cod, Marlboro, Boston||Exit 5 on I-495|
|US 44 / Route 28 south to I‑495 – Middleboro, Plymouth, Taunton, Marlboro||Rotary; southern terminus of concurrency with Route 28|
|Route 28 north / Route 104 – Taunton, Kingston, West Bridgewater, Brockton||Rotary; northern terminus of concurrency with Route 28|
|East Bridgewater||28.094||45.213||Route 106 west – West Bridgewater||Southern terminus of concurrency with Route 106|
|28.197||45.379||Route 106 east||Northern terminus of concurrency with Route 106|
|Whitman||32.066||51.605||Route 14 – Brockton, Hanson||Site of the Toll House Inn (birthplace of the chocolate chip cookie) northwest of here|
|32.798||52.783||Route 27 – Brockton, Kingston|
|Abington||34.544||55.593||Route 123 – Brockton, Hanover|
|36.168||58.207||Route 139 – Holbrook, Rockland|
|Norfolk||Weymouth||37.085||59.683||Route 58 south – Rockland||Northern terminus of Route 58|
|Route 3 – Boston, Cape Cod||Exit 16 on Route 3|
|41.561||66.886||Route 53 – Braintree, Quincy, Hanover|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
|Wikimedia Commons has media related to Massachusetts Route 18.|
- MassDOT Planning Division. "Massachusetts Route Log Application". Massachusetts Department of Transportation. Retrieved January 19, 2016.
- Information from Massachusetts Road Maps of 1930, 1932, 1933 and 1968 downloaded from MassDOT's Historic Maps Gallery at http://massdot.maps.arcgis.com/apps/PublicGallery/index.html?appid=29085e10d60743cf9a37d62b5fe8b83d, downloaded 4/29/2016.
- Christian Schiavone (25 April 2013). "Weymouth residents object to Route 18 widening plan". Gatehouse Media, Inc. Retrieved 21 March 2015.
- John F. Kennedy Memorial Highway (Downtown Connector) on Bostonroads.com