Massachusetts Route 4
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North end | ![]() | |||
Location | ||||
Country | United States | |||
State | Massachusetts | |||
Counties | Middlesex | |||
Highway system | ||||
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Route 4 is an 18.26-mile-long (29.39 km)
Route description
Concurrency with Route 225
Route 4 begins at Route 2's Exit 131 interchange in Lexington, just west of the border with
Northern segment
Route 4 proceeds northward out of Bedford by itself, where it begins to parallel US 3 as it passes into Billerica. Route 4 does not intersect any other numbered highways in the town, but does intersect two local roads - Concord Road and Treble Cove Road - which provide nearby access to US 3, which lies to the east. Route 4 continues north into Chelmsford, where it meanders towards the center of town. Near the center, Route 4 intersects the northern end of Route 27 at a rotary-type intersection, and then crosses Route 110, very briefly sharing pavement. Continuing to the north, Route 4 has a half-interchange with Interstate 495 at Exit 87. This interchange provides southbound-only access to I-495 and is a northbound-only exit from the freeway. Access to I-495 northbound is available via Route 110 East, at the nearby Exit 88 interchange. Route 4 continues to the northwest, where it comes to a rotary interchange with US 3 at Exit 84, crossing over the freeway, and continuing another half-mile to the northwest where it ends at an intersection with Route 3A in North Chelmsford.
Major intersections
The entire route is in Middlesex County.
Location | mi | km | Destinations | Notes | |
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Southern terminus; eastern terminus of Route 225; exit 131 on Route 2; partial cloverleaf interchange | |||||
1.40 | 2.25 | ![]() ![]() | Southern terminus of concurrency with Route 2A | ||
1.50 | 2.41 | ![]() ![]() | Northern terminus of concurrency with Route 2A | ||
4.40 | 7.08 | ![]() ![]() | Exit 49 on I-95 / Route 128; cloverleaf interchange | ||
Bedford | 6.20 | 9.98 | ![]() ![]() | Southern terminus of concurrency with Route 62 | |
7.20 | 11.59 | ![]() ![]() | Northern terminus of concurrency with Route 62 | ||
7.40 | 11.91 | ![]() ![]() | Northern terminus of concurrency with Route 225 | ||
Concord River | John F. Leary Bridge | ||||
Chelmsford | 15.50 | 24.94 | ![]() ![]() | Traffic circle; northern terminus of Route 27 | |
15.60 | 25.11 | ![]() ![]() ![]() | Central Square; Western terminus of Route 129 | ||
16.00 | 25.75 | ![]() ![]() Marlboro, Taunton | Exit 87 on I-495; partial diamond interchange | ||
17.50 | 28.16 | ![]() Boston, Nashua | Exit 84 on US 3; rotary interchange | ||
Tyngsboro | Northern terminus | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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Street names
Route 4 is known by the following street names:
![](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Massachusetts_Route_4_northbound%2C_Lexington_MA.jpg/250px-Massachusetts_Route_4_northbound%2C_Lexington_MA.jpg)
Lexington
- Watertown Street (concurrent with Route 225)
- Pleasant Street (concurrent with Route 225)
- Massachusetts Avenue (concurrent with Route 225)
- Bedford Street (concurrent with Route 225)
Bedford
- Great Road (concurrent with Route 225, partly with Route 62)
- North Road
Billerica
- Nashua Road
Chelmsford
- Boston Road
- North Road
North Chelmsford
- North Road
References
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- "Massachusetts Atlas and Gazetteer." Yarmouth, Maine: DeLorme. First Edition, 1998.
- The Roads of Massachusetts