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Route 21 (Massachusetts)

Route 21 marker

Route 21
Route information
Length: 13.73 mi (22.10 km)
Major junctions
South end: US 20 in Springfield
 

Route 141 in Springfield
I‑90 in Ludlow

US 202 / Route 181 in Belchertown
North end: Route 9 in Belchertown
Location
Counties: Hampden, Hampshire
Highway system
Route 20A Route 22

Route 21 marker

Route 141 in Springfield
I‑90 in Ludlow

Route 21 is a south–north state highway in Massachusetts that runs between Springfield and Belchertown.

The route begins at U.S. Route 20 in the Indian Orchard section of Springfield. It heads north, intersecting with Route 141 before crossing the Chicopee River into Ludlow. Once in Ludlow, the road continues in a northeasterly direction. It passes under the Massachusetts Turnpike, with access to that road via Exit 7. It continues through town, passing south of the Springfield Reservoir before heading northward into Belchertown. In Belchertown it shares a concurrency with U.S. Route 202, which ends at Route 181. From there Route 21 makes its final short trek to its current terminus at Route 9.


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Wikipedia

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