Massachusetts Route 135

Route 135
Route 135 highlighted in red
Route information
Maintained by MassDOT
Length	29.53 mi[1] (47.52 km)
Existed	1927–present
Major junctions
West end	US 20 in Northborough
Major intersections	Route 9 / Route 30 in Westborough Route 85 in Hopkinton Route 126 in Framingham Route 27 in Natick Route 16 in Wellesley
East end	I-95 / Route 128 in Dedham
Location
Country	United States
State	Massachusetts
Counties	Worcester, Middlesex, Norfolk
Highway system
Massachusetts State Highway System Interstate US State
← Route 134 → Route 136

Route 135 is a 29.53-mile-long (47.52 km) east-west state highway in eastern Massachusetts. The western terminus is at U.S. Route 20 in Northborough and the eastern terminus is at I-95 and Route 128 in Dedham.

The first 13 miles (21 km) of the Boston Marathon, from Hopkinton to Wellesley, follow Route 135.