Route 189 (Connecticut–Massachusetts)

Route 189
Map of northern Connecticut and southern Massachusetts with CT 189 in solid red and MA 189 in dotted red
Route information
Maintained by ConnDOT and MassDOT
Length22.43 mi (36.10 km)
20.32 miles (32.70 km) in CT
2.11 miles (3.40 km) in MA
Existed1932–present
Major junctions
South end US 44 in Hartford, CT
Major intersections Route 187 in Bloomfield, CT
North end Route 57 in Granville, MA
Location
CountryUnited States
StatesConnecticut, Massachusetts
CountiesCT: Hartford, MA: Hampden
Highway system
  • Connecticut State Highway System
Route 188 Route 190
Route 187MA I-190

Route 189 is a 22.43-mile-long (36.10 km) state route in the U.S. states of Connecticut and Massachusetts. The route begins in the northwestern portion of the Connecticut state capital of Hartford and ends in the rural town of Granville. In Massachusetts, the route is not a state highway and is maintained by the town of Granville.