Connecticut Route 309

Route 309
Map of Hartford County in northern Connecticut with Route 309 highlighted in red
Route information
Maintained by CTDOT
Length	4.74 mi[1] (7.63 km)
Existed	1963–present
Major junctions
West end	Route 179 in Canton
East end	Route 167 in Simsbury
Location
Country	United States
State	Connecticut
Counties	Hartford
Highway system
Connecticut State Highway System Interstate US State SSR SR Scenic
← Route 305 → Route 313

Route 309 is a Connecticut state highway in the northwestern Hartford suburbs running from Canton to Simsbury.

Route 309 begins at an intersection with Route 179 in North Canton and heads southeast into Simsbury. In Simsbury, it curves southeast and east to end at an intersection with Route 167.^[1]

North Canton Road and West Simsbury Road was established as SR 909 in 1962 as part of the Route Reclassification Act. The following year, SR 909 became a signed route, with the designation Route 309.^[2]

The entire route is in Hartford County.

Location	mi[1]	km	Destinations	Notes
Canton	0.00	0.00	Route 179 – Collinsville, Barkhamsted	Western terminus of CT 309
Simsbury	4.74	7.63	Route 167 – Avon, Simsbury Center	Eastern terminus of CT 309
1.000 mi = 1.609 km; 1.000 km = 0.621 mi