| State: | MA |
| Type: | MA |
| Route: | 10 |
| Map Custom: | yes |
| Map Notes: | Route 10 highlighted in red |
| Length Mi: | 60.69 |
| Length Ref: | [1] |
| Established: | 1922 |
| Direction A: | South |
| Terminus A: | in Granby, CT |
| Junction: | in Westfield in Westfield in Northampton and Bernardston in Northampton, Hatfield, and Whately in Greenfield |
| Direction B: | North |
| Terminus B: | in Winchester, NH |
| Counties: | Hampden, Hampshire, Franklin |
| Previous Type: | MA |
| Previous Route: | C9 |
| Next Type: | MA |
| Next Route: | 11 |
Massachusetts Route 10 is a 60.69adj=midNaNadj=mid north–south state highway that runs from the Connecticut state line at Southwick to the New Hampshire state line at Northfield. Originally part of New England Route 10 from 1922 to 1927, it continues to the south as Connecticut Route 10, and to the north as New Hampshire Route 10.
Route 10 crosses the border from Granby, Connecticut into Southwick, Massachusetts, overlapped with U.S. 202. It runs north through the Pioneer Valley towns of Southwick, Westfield, Southampton, Easthampton, Northampton, Hatfield, Whately, Deerfield, Greenfield, Bernardston, Gill, and Northfield. Route 10 has a long concurrency with U.S. 5 for about 25miles from Northampton to Bernardston, where it was sometimes called the "5 & 10 Highway". During this concurrency, it closely parallels Interstate 91, with five exits from Northampton to Deerfield, with close access at Route 2 in Greenfield and another exit, solely for Route 10, in Bernardston. It crosses the Connecticut River in Northfield before entering New Hampshire.
Route 10 is concurrent with seven other routes (US 5, US 20, US 202, and Massachusetts Routes 57, 9, 116, and 63) for 43miles of its nearly 61miles in the state with three points of triple concurrency, leaving less than a third of its length as the sole road designation.
An odd sight greeted motorists in Easthampton in July 2005: standard issue Alabama state highway signs with the number 10 in a map of that state, instead of the standard Massachusetts square. This odd "Alabama 10" signage came about when a contractor mistakenly applied the sample from a federal manual. The signs have since been replaced with the correct shields.[2] [3]
See main article: t, US, 202, CT and 10.
See main article: t, MA and 168.
See main article: t, MA and 57.
See main article: t, MA and 57.
See main article: t, US and 20.
See main article: t, US and 20.
See main article: t, I, 90 and MATP.
See main article: t, US and 202.
See main article: t, MA and 141.
See main article: t, MA and 9.
See main article: t, MA, 9, US and 5.
See main article: t, I and 91.
See main article: t, I and 91.
See main article: t, I and 91.
See main article: t, I and 91.
See main article: t, I and 91.
See main article: t, I and 91.
See main article: t, MA and 116.
See main article: t, MA, 116, I and 91.
See main article: t, MA and 2A.
See main article: t, MA, 2, I and 91.
See main article: t, US and 5.
See main article: t, I and 91.
See main article: t, MA and 142.
See main article: t, MA and 63.
See main article: t, MA and 63.
See main article: t, NH and 10.