Connecticut Route 123

Route 123 marker
Route 123
Map
Map of Fairfield County in southwestern Connecticut with Route 123 highlighted in red
Route information
Maintained by CTDOT
Length8.37 mi[1] (13.47 km)
Existed1932 (realigned 1934)–present
Major junctions
South end US 1 in Norwalk
Major intersections Route 15 / Merritt Parkway in Norwalk
North end NY 123 in Lewisboro, NY
Location
CountryUnited States
StateConnecticut
CountiesFairfield
Highway system
  • Connecticut State Highway System
Route 122 Route 124

Route 123 is a secondary state highway in southwestern Connecticut from Norwalk to the New York state line near the town of Lewisboro.