Route 121 (Rhode Island–Massachusetts)
Route 121 highlighted in red | |||||||||||||||||||
| Route information | |||||||||||||||||||
| Maintained by MassDOT | |||||||||||||||||||
| Length | 5.4 mi (8.7 km) 1.0 mile (1.6 km) in RI 4.4 miles (7.1 km) in MA | ||||||||||||||||||
| Existed | 1960s–present | ||||||||||||||||||
| Major junctions | |||||||||||||||||||
| South end | Route 114 in Cumberland, RI | ||||||||||||||||||
| North end | Route 1A in Wrentham, MA | ||||||||||||||||||
| Location | |||||||||||||||||||
| Country | United States | ||||||||||||||||||
| States | Massachusetts, Rhode Island | ||||||||||||||||||
| Counties | RI: Providence, MA: Norfolk | ||||||||||||||||||
| Highway system | |||||||||||||||||||
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Route 121 is a numbered state highway running 1.0 mile (1.6 km) in Rhode Island and 4.4 miles (7.1 km) in Massachusetts. It is part of the route connecting the city of Woonsocket (via Route 114) with the town of Wrentham.