Route 2A
Map of New London County in southeastern Connecticut with Route 2A highlighted in red
Route information
Maintained by CTDOT
Length	9.91 mi (15.95 km)
Existed	1967–present
Major junctions
West end	I-395 / Route 2 / Route 32 in Norwich
Major intersections	I-395 in Montville
East end	Route 2 in Preston
Location
Country	United States
State	Connecticut
Counties	New London
Highway system
Connecticut State Highway System Interstate US State SSR SR Scenic
← Route 2 → Route 3

Route 2A is a state highway in the U.S. state of Connecticut. It is a 9.9-mile (15.9 km) mostly freeway alternate route of Route 2 that bypasses the downtown area of the city of Norwich and serves as the main access road to the Mohegan Sun casino.

Route 2A begins at the junction of I-395 and Route 2/Route 32 in Norwich. Route 2A travels south along I-395 for 3.7 miles (6.0 km) before separating as its own four-lane freeway at I-395 Exit 9 in Montville. It runs easterly for about 3.2 miles (5.1 km) with interchanges for Route 32 and Mohegan Sun Casino before becoming a two-lane freeway, after which it crosses the Thames River on the Mohegan-Pequot Bridge into Preston and ends at Route 12. After turning north onto Route 12 for a brief overlap, it resumes its easterly course, meeting with Route 117 in the village of Poquetanuck. From here, Routes 2A and 117 continue north as a concurrency to Route 2 where both routes end.

When the highway and bridge opened in December 1967, motorists were charged a 15-cent toll. The toll plaza located at the west end of the Mohegan-Pequot Bridge was removed in 1980.^[1]

The Connecticut Department of Transportation announced in May 2013 that exit numbers on I-395 and Route 2A would be renumbered from the then-existing sequential-based system to mileage-based numbering; the numbers on I-395 were changed from June to November 2015, the Route 2A numbers by March 2016. The old exit numbers were posted above the new exit tab for the mile-based numbers until 2017.

The entire route is in New London County.

Location	mi	km	Old exit	New exit	Destinations	Notes
Norwich	0.00	0.00	–	–	I-395 north – Norwich, Boston	Continuation north; western end of I-395 concurrency; former Route 52 north
	0.24	0.39	81	13	Route 2 / Route 32 – Norwich, Hartford	Signed as exits 13B (west) and 13A (east) westbound; exits 36-37 on Route 2; no eastbound access to Route 2 west
	2.44	3.93	80	11	Route 82 – Downtown Norwich, Salem
Montville	3.90	6.28	79A	9	I-395 south – New Haven, New York City	Eastern end of I-395 concurrency; exit number not signed westbound; former Route 52 south
	5.30	8.53	1	5	Route 32 – Norwich, Uncasville
	6.39	10.28	2	6	Mohegan Sun Boulevard – Mohegan Reservation	To Mohegan Sun
Thames River	6.64	10.69	Mohegan–Pequot Bridge
Preston	7.05	11.35	Eastern end of freeway section
					Route 12 south – Gales Ferry, Groton, New London	Western end of Route 12 concurrency
	7.35	11.83			Route 12 north – Norwich	Eastern end of Route 12 concurrency
	9.11	14.66			Route 117 south – Ledyard, Old Mystic	Western end of Route 117 concurrency
	9.91	15.95			Route 2 – Norwich, North Stonington, Westerly, RI Route 117 ends	Eastern terminus; northern terminus of Route 117
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• Media related to Connecticut Route 2A at Wikimedia Commons