Massachusetts Route 117

Route 117
Route 117
	Route 117 highlighted in red
Route information
	Maintained by MassDOT
Length	31.0718 mi (50.0052 km)
Major junctions
West end	Route 12 in Leominster
	I-190 / Route 70 in Lancaster; Route 110 in Bolton; I-495 / Route 85 in Bolton; Route 62 in Stow / Maynard; Route 27 in Maynard; Route 126 in Lincoln;
East end	US 20 in Waltham
Location
Country	United States
State	Massachusetts
Counties	Worcester, Middlesex
Highway system
	Massachusetts State Highway System; Interstate; US; State;

Route 117 is a 31.0718-mile-long (50.0052 km) east–west state highway in Massachusetts, running from Route 12 in Leominster in northeast Worcester County to U.S. Route 20 (US 20) in Waltham in central Middlesex County.

Route description

Route 117 begins in the city of Leominster, near the city center, and passes southeast along Lancaster Street before having an interchange with Interstate 190's Exit 7, just over the city line into Lancaster. In Lancaster the route heads eastward, crossing two branches of the Nashua River while having a short, quarter-mile concurrency with Route 70 south of Fort Devens. The route then crosses into Bolton, crossing Route 110 near the Bolton Flats State Wildlife Management Area. It then passes through the center of town before crossing I-495 at Exit 27. It serves as the northern terminus of Route 85 before crossing into Middlesex County and the town of Stow.

Eastbound in Lincoln near Drumlin Farm

In Stow, the route passes through the countryside before meeting Route 62 at the center of town. The two routes head eastward concurrently, entering into Maynard. The routes split just after crossing the Assabet River, with Route 117 heading in a more southeastern direction. The route crosses Route 27 before entering Sudbury. It crosses through the southern tip of Concord and enters the town of Lincoln over the Sudbury River.

In Lincoln, Route 117 passes through the southwest end of town, intersecting Route 126 and the Fitchburg Line south of the Lincoln station before crossing into Weston. In Weston the route bends southeastward through the Silver Hill, Hastings and Kendal Green sections of town before entering Waltham. Serving as the city's Main Street, the route crosses I-95 and its concurrent route Highway 128 without an interchange before ending at U.S. Route 20, which in turn continues Main Street through Waltham's downtown.

Major intersections

County	Location	mi	km	Destinations	Notes
Worcester	Leominster	0.00	0.00	Route 12 – Sterling, Fitchburg	Western terminus
	Lancaster	3.0	4.8	I-190 to Route 2 – Worcester, Fitchburg	Exit 17 on I-190; to Route 2 via I-190 north; diamond interchange
		5.8	9.3	Route 70 north to Route 2 – Lunenburg, Devens	Western end of Route 70 concurrency
		6.1	9.8	Route 70 south – Boylston	Eastern end of Route 70 concurrency
	Bolton	7.1	11.4	Route 110 – Harvard, Clinton
		11.1	17.9	I-495 – Marlboro, Lowell	Exit 70 on I-495; partial cloverleaf interchange
		11.5	18.5	Route 85 south – Hudson	Northern terminus of Route 85
Middlesex	Stow	16.1	25.9	Route 62 west – Berlin, Princeton	Western end of Route 62 concurrency
	Maynard	18.1	29.1	Route 62 east – Concord, Bedford	Eastern end of Route 62 concurrency
	Maynard	19.3	31.1	Route 27 – Acton, Sudbury
	Lincoln	25.0	40.2	Route 126 to Route 2 – Concord, Framingham, Wayland	To Routes 2 and 2A via Route 126 north
	Waltham	31.07	50.00	US 20 – Marlboro, Watertown	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus