In 1932, the Highway Department of the U.S. state of Connecticut

Connecticut

Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...

 (now known as the Connecticut Department of Transportation

Connecticut Department of Transportation

The Connecticut Department of Transportation is responsible for the development and operation of highways, railroads, mass transit systems, ports, waterways and aviation facilities in the U.S. state of Connecticut. The current Commissioner of ConnDOT is Jeffrey Parker...

), decided to completely renumber all its state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

s. The only exceptions were the U.S. Highways and some of the New England Interstate Routes. Between 1922 and 1932, Connecticut used a state highway numbering system shared with the other New England

New England

New England is a region in the northeastern corner of the United States consisting of the six states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut...

 states. Major inter-state trunk routes used numbers in the 1-99 range, primary intrastate highways used numbers in the 100-299 range, and secondary state highways used numbers in the 300+ range.

In 1926, at the behest of the American Association of State Highway Officials, four of the nine New England Interstate Routes that passed through Connecticut became U.S. Routes. At this time, the adjacent states of Massachusetts

Massachusetts

The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

 and Rhode Island

Rhode Island

The state of Rhode Island and Providence Plantations, more commonly referred to as Rhode Island , is a state in the New England region of the United States. It is the smallest U.S. state by area...

 abandoned the New England highway numbering system but Connecticut still used it for several more years. This led to a situation where U.S. Routes were co-signed with New England Routes (in particular U.S. Route 5/New England Route 2 and U.S. Route 6/New England Route 3).

In 1932, the Highway Department decided to abandon the New England numbering system as well by completely reorganizing the state highway system. The renumbering completely altered the previously existing state highway numbers. In addition, not only were the highways renumbered, some old state highways were combined, some were split, some were deleted, and some new ones were also created.

Highways in 1932

The table below lists the highways that were created in the 1932 renumbering, indicating which old state highways they were created from, and their current status:

1932 Route	Pre-1932 State Highway number(s)	Current designation	Notes
2	NE-17 east of Hartford	Route 2 Route 2 (Connecticut) Route 2 is a state highway in Connecticut and is in length. It is a primary state route, with a freeway section connecting Hartford to Norwich and a non-freeway section extending to Stonington.-Route description:...	Hartford to Norwich upgraded to expressway. Portions of old surface alignment are now unsigned state roads.
4	SH 123 (Cornwall-Canton), SH 138 (Canton-Farmington)	Route 4 Route 4 (Connecticut) Route 4 is an east–west primary state highway connecting rural Litchfield County to the Greater Hartford area of the U.S. state of Connecticut...
8	NE-8	Route 110, Route 8 Route 8 (Connecticut) Route 8 is the portion of the multistate New England Route 8 within the state of Connecticut. It is a state highway running north–south from Bridgeport, through Waterbury, all the way to the Massachusetts state line where it continues as Route 8...	Upgraded to expressway with a different alignment south of Shelton Shelton, Connecticut Shelton is a city in Fairfield County, Connecticut, United States. The population was 39,559 at the 2010 census.-Origins:Shelton was settled by the English as part of the town of Stratford, Connecticut, in 1639... . Portions of old surface alignment are now unsigned state roads.
9	NE-10 south of Granby Granby, Connecticut Granby is a town in Hartford County, Connecticut, United States. The population was 10,347 at the 2000 census. The town center was defined as a census-designated place known as Salmon Brook in the 2000 census....	Route 154, Route 99, Route 189	Upgraded to expressway with a different alignment north of Middletown Middletown, Connecticut Middletown is a city located in Middlesex County, Connecticut, along the Connecticut River, in the central part of the state, 16 miles south of Hartford. In 1650, it was incorporated as a town under its original Indian name, Mattabeseck. It received its present name in 1653. In 1784, the central...  (see Route 9 Route 9 (Connecticut) Route 9 is a , 4-lane freeway beginning in Old Saybrook and ending at the Farmington-West Hartford town line.-Route description:Route 9 begins at an interchange with I-95/U.S. 1, on the west banks of the Connecticut River... ).
10	SH 118 (New Haven-Milldale), NE-3 (Milldale-Farmington), SH 116 (Farmington-Granby), NE-10 north of Granby	Route 10
12	NE-32 (Groton-Norwich), NE-12 north of Norwich	Route 12
14	NE-3 (Woodbury-Milldale), SH 111 (Milldale-Willimantic), SH 141 (Willimantic-Plainfield), SH 103 (Plainfield-RI)	Route 64 Route 64 (Connecticut) Route 64 is a Connecticut state highway connecting the towns of Woodbury and Waterbury via Middlebury.- Route description:Route 64 begins as Sherman Hill Road at an intersection with US 6 in the Pomeraug section of Woodbury and heads east towards Middlebury. After crossing the town line, the road... , Route 322, Route 66 Route 66 (Connecticut) Route 66 is a Connecticut state highway running from Meriden to Windham, serving as an alternate east–west route to US 6 through east-central Connecticut.- Route description:... , Route 14 Route 14 (Connecticut) Route 14A is an alternate route of Route 14 in the Plainfield and Sterling areas. Prior to 1963, Route 14A was the original road used by Route 14 between Canterbury and Plainfield. In Sterling, modern Route 14A was known as Route 211 between 1932 and 1950. From 1950 to...	West of Willimantic was renumbered to US 6A in 1941.
15	SH 114 (New Haven-Durham), SH 112 (Durham-Middletown), SH 104 (Portland-Glastonbury), NE-17 (Glastonbury-East Hartford), SH 313 (East Hartford-Talcotville), SH 107 (Talcotville-Rockville), SH 166 (Rockville-Stafford Springs), SH 105 (Stafford Springs-MA)	Route 17 Route 17 (Connecticut) Route 17 is a primary north–south state route beginning in New Haven, through Middletown, and ending in Glastonbury, with a length of .-Route description:... , Route 30 Route 30 (Connecticut) Route 30 is a Connecticut state highway running from South Windsor to Stafford. Although officially designated north–south, the section from South Windsor to Vernon is a major east–west arterial road.- Route description:... , Route 190
19	Original alignment of NE-32 in Stafford Stafford, Connecticut Stafford is a town in Tolland County, Connecticut, United States, settled in 1719. The population was 11,307 at the 2000 census.-History:The Colonial Town of Stafford began as a rural agricultural community...	Route 19 Route 19 (Connecticut) Route 19 is a minor Connecticut state route running from Stafford to the Massachusetts state line. It is long and runs north–south, entirely within Stafford. The road interconnects the settlements in the eastern part of the town....
20	SH 133 (Winsted-Granby), SH 343 (East Granby-Windsor Locks), SH 105 (Enfield-Stafford Springs)	Route 20 Route 20 (Connecticut) Route 20 is a state highway in the U.S. state of Connecticut. It extends from Route 8 in rural Winchester to I-91 in Windsor. Route 20 consists of two distinct sections: a long, winding, scenic rural road, and a section of the freeway linking I-91 to Bradley International... , Route 190
25	SH 122 (Bridgeport-Newtown), SH 156 (Newtown-Brookfield), SH 182 (Brookfield-Bridgewater), SH 125 (Bridgewater-New Milford), SH 128 (New Milford-Torrington)	Main Street, Route 25 Route 25 (Connecticut) Route 25 is a , primary state highway connecting the city of Bridgeport and the town of Brookfield in the U.S. state of Connecticut. Route 25 is a six-lane freeway from Bridgeport to northern Trumbull and a two-lane surface road the rest of the way to Brookfield.Route 25 was... , Route 133, Route 67 Route 67 (Connecticut) Route 67 is a secondary state highway in the U.S. state of Connecticut, from the town of New Milford in the Greater Danbury area to the town of Woodbridge in the outskirts of New Haven. The route runs for .-Route description:... , U.S. Route 202 U.S. Route 202 U.S. Route 202 is a highway stretching from Delaware to Maine, also passing through the states of Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, and New Hampshire....	Upgraded to expressway between Bridgeport and Trumbull.
29	SH 302 (Darien-NY)	Route 124
32	NE-12 (New London-Norwich), NE-32 (Norwich-Stafford Springs), SH 334 (Stafford Springs-MA)	Route 32 Route 32 (Connecticut) Route 32 is a primary north–south state highway in the U.S. state of Connecticut, beginning in New London and continuing via Willimantic to the Massachusetts state line, where it continues as Route 32 in that state.-Route description:...
33	SH 176 (Westport-Wilton), SH 304 (Wilton-Ridgefield), SH 143 (Ridgefield-NY)	Route 33 Route 33 (Connecticut) Route 33 is a , secondary north–south state highway in the U.S. state of Connecticut, from Westport to Ridgefield.-Route description:... , Route 116
34	SH 117 (New Haven-Newtown)	Route 34 Route 34 (Connecticut) Route 34 is a primary state highway in the U.S. state of Connecticut. Route 34 is long, and extends from Washington Street near I-84/US 6 in Newtown to the junction of I-95 and I-91 in New Haven. The highways connects the New Haven and Danbury areas via the Lower Naugatuck River Valley...
35	NE-3 (NY line to US 7 near Ridgefield)	Route 35 Route 35 (Connecticut) Route 35 is a state highway in Connecticut, located entirely within the town of Ridgefield. Route 35 starts at the New York state line, where the road continues as New York State Route 35, and ends at U.S. Route 7. The road is often used as an alternative to the congested Route 7...
37	SH 136 (Danbury-Sherman), SH 131 (Sherman to US 7)	Route 37
39	SH 194 (New Fairfield-Sherman), SH 136 (Sherman-Gaylordsville)	Route 39 Route 39 (Connecticut) Route 39 is a north–south state highway in Connecticut. It is one of the main roads in downtown Danbury. Route 39 begins at the junction of Route 53 and 37, near I-84 , and runs for north through New Fairfield and Sherman, ending at Route 55 in Sherman.- Route description:Route 39 begins...
41	NE-4 (Sharon-MA)	Route 41 Route 41 (Connecticut) Route 41 is a scenic state highway in rural Northwestern Connecticut. It extends from the New York state line in Sharon to the Massachusetts state line in Salisbury and is the only state-numbered route in Connecticut that has both its ends at a state border....
43	SH 132 (Cornwall-South Canaan)	Route 43, Route 63 Route 63 (Connecticut) Route 63 is a secondary state highway in the U.S. state of Connecticut, from New Haven up to Canaan, running for . It connects the Greater New Haven area to Northwestern Connecticut via the western suburbs of Waterbury.-Route description:...
45	SH 152 (New Preston-Cornwall Bridge)	Route 45
47	SH 154 (Woodbury-New Preston)	Route 47
49	SH 312 (Torrington-Norfolk)	Route 272
53	(Georgetown-Danbury)	Route 53 Route 53 (Connecticut) Route 53 is a state highway in the U.S. state of Connecticut, connecting the cities of Norwalk and Danbury. Most of the route has been made redundant by U.S...
55	(NY line to Gaylordsville)	Route 55 Route 55 (Connecticut) Route 55 is a state highway in the western part of the U.S. state of Connecticut, running from the New York state line in Sherman to New Milford...
57	(Westport-Weston), SH 158 (Weston-Newtown)	Route 57 Route 57 (Connecticut) Route 57 is a secondary state highway in western Connecticut serving as the "Main Street" of and connecting the towns of Westport and Weston. The road continues north through Redding to end at US 7 just after crossing into Wilton.-Route description:... , Newtown Turnpike
58	SH 124 (Bridgeport-Danbury)	Route 58 Route 58 (Connecticut) Route 58 is a primary state highway in the U.S. state of Connecticut connecting the towns of Fairfield and Bethel. Route 58 is long and is one of the primary routes to the downtown Danbury area via Routes 302 and 53.-Route description:... , Route 302, Route 53 Route 53 (Connecticut) Route 53 is a state highway in the U.S. state of Connecticut, connecting the cities of Norwalk and Danbury. Most of the route has been made redundant by U.S...
59	SH 306 (Bridgeport-Monroe)	Route 59
61	SH 130 (Woodbury-Goshen)	Route 61, Route 63 Route 63 (Connecticut) Route 63 is a secondary state highway in the U.S. state of Connecticut, from New Haven up to Canaan, running for . It connects the Greater New Haven area to Northwestern Connecticut via the western suburbs of Waterbury.-Route description:...
63	SH 120 (Woodbridge-Naugatuck), SH 341 (Naugatuck to NE-3), (NE-3 to Watertown), (Watertown-Morris)	Route 63 Route 63 (Connecticut) Route 63 is a secondary state highway in the U.S. state of Connecticut, from New Haven up to Canaan, running for . It connects the Greater New Haven area to Northwestern Connecticut via the western suburbs of Waterbury.-Route description:...
65	SH 316 (Bridgeport-Shelton)	Route 8 Route 8 (Connecticut) Route 8 is the portion of the multistate New England Route 8 within the state of Connecticut. It is a state highway running north–south from Bridgeport, through Waterbury, all the way to the Massachusetts state line where it continues as Route 8...	Original surface alignment is now an unsigned state road.
67	SH 120 (New Haven-Woodbridge), SH 147 (Woodbridge-Southbury), SH 125 (Southbury-Bridgewater)	Route 63 Route 63 (Connecticut) Route 63 is a secondary state highway in the U.S. state of Connecticut, from New Haven up to Canaan, running for . It connects the Greater New Haven area to Northwestern Connecticut via the western suburbs of Waterbury.-Route description:... , Route 67 Route 67 (Connecticut) Route 67 is a secondary state highway in the U.S. state of Connecticut, from the town of New Milford in the Greater Danbury area to the town of Woodbridge in the outskirts of New Haven. The route runs for .-Route description:...
68	SH 325 (Naugatuck-Cheshire)	Route 68 Route 68 (Connecticut) Route 68 is an east–west state highway in the U.S. state of Connecticut connecting the towns of Durham and Naugatuck.-Route description:...
69	SH 348 (Bethany-Waterbury)	Route 69 Route 69 (Connecticut) Route 69 is a primary north–south state highway in the U.S. state of Connecticut connecting the city of New Haven to the city of Bristol in the western part of Greater Hartford, passing through Greater Waterbury along the way. The route extends north of Bristol as a secondary route into the...	Extended by 1938 along old Route 119/SH 172 (Waterbury-Bristol).
70	SH 323 (Waterbury-Cheshire), SH 325 (Cheshire-Meriden)	East Main Street, Route 70 Route 70 (Connecticut) Route 70 is a long state highway in the U.S. state of Connecticut, connecting the towns of Cheshire and Meriden. The western half of the route is an important link between the Greater New Haven and the Greater Waterbury areas and is part of the state primary highway system.-Route...
71	SH 113 (New Britain-Hartford)	Route 71, Route 173, New Britain Avenue	West Hartford-Hartford became US 6A in 1934.
72	SH 346 (Middletown-Cromwell), SH 319 (Cromwell-Berlin), SH 162 (Berlin-New Britain), SH 113 (New Britain-Plainville)	Route 3 Route 3 (Connecticut) Route 3 is a long route connecting Middletown to the Glastonbury-East Hartford town line. It passes through the towns of Cromwell, Rocky Hill, Wethersfield, and Glastonbury. The northernmost of Route 3 is an expressway that was originally intended for the cancelled... , Route 372
73	SH 339 (Waterbury-Watertown)	Route 73
74	SH 107 (Rockville-Ashford)	Route 74
75	SH 362 (Windsor-Suffield), SH 110 (Suffield-MA line)	Route 75 Route 75 (Connecticut) Route 75 in the U.S. states of Connecticut and Massachusetts is a scenic route connecting the Hartford and Springfield areas. The route begins at Route 159 in the town of Windsor, Connecticut and ends at the junction of Route 159 and Route 147 in the city of Agawam, Massachusetts.The route...
77	SH 112 (Durham-Guilford)	Route 77
79	SH 190 (Durham-Madison)	Route 79 Route 79 (Connecticut) Route 79 is a state highway in southern Connecticut from Madison to Durham.-Route description:Route 79 begins at US 1 in Madison center and heads north across I-95 . It continues north, intersecting with Horse Pond Road , which leads to the town offices...
80	SH 135 (New Haven-North Branford), SH 140 (North Branford-North Guilford), (North Guilford-Killingworth), SH 175 (Killingworth-Deep River)	Route 80 Route 80 (Connecticut) Route 80 is a long secondary east–west state route in Connecticut from New Haven to Deep River. It serves as a more inland alternate route to US 1 in eastern New Haven County and Middlesex County.-Route description:...
81	SH 106 (Clinton-Higganum)	Route 81