Connecticut Route 99

Route 99 marker
Route 99
Map
Map of central Connecticut with Route 99 highlighted in red
Route information
Maintained by CTDOT
Length10.64 mi[1] (17.12 km)
Existed1969–present
Major junctions
South end Route 9 in Cromwell
Major intersections
North end US 5 / Route 15 / Wethersfield Avenue in Wethersfield
Location
CountryUnited States
StateConnecticut
CountiesMiddlesex, Hartford
Highway system
  • Connecticut State Highway System
Route 97 Route 100
Route 99 in Rocky Hill

Route 99 is a state highway in Connecticut running for 10.64 miles (17.12 km) from Route 9 in Cromwell, through the town of Rocky Hill, ending in Wethersfield at the Hartford city line. The road continues into Hartford as a local road (Wethersfield Avenue). It follows the former alignment of Route 9 from prior to that route's upgrade to a freeway.