List of State Routes in Connecticut

State Routes in Connecticut
Standard Connecticut route shields
System information
Length:	3,719 mi (5,985 km)
Notes:	Routes are generally state-maintained. There is also a system of unsigned state highways known as State Roads (SR) and Special Service Roads (SSR). State roads maintained by the ConnDOT.
Highway names
Interstates:	I-X or Route X
US Routes:	US X or Route X
State:	Route X
System links
Routes in Connecticut Interstate U.S. State SSR SR

The Connecticut Department of Transportation (ConnDOT) maintains a system of state highways to serve the predominant flow of traffic between towns within Connecticut, and to towns in surrounding states. State highways also include roads that provide access to federal and state facilities (Special Service Roads).

The state highway system consists of roads indicated on the official ConnDOT map and highway log. As of January 1, 2007, the state highway system contains a total of 3,719 miles (5,985 km) of roads (not including ramps and interchange connections), corresponding to approximately 20% of all roads in the state. All state highways are state-maintained except for several segments (totaling 4 miles) that are locally maintained. All interstate highways and U.S. highways in the state are part of the state highway system.

All state highways are given a number designation. Most state highways are assigned Route numbers (including U.S. highways and interstates). Route numbers are in the 1-399 range, with the exception of Interstates 684 and 691. State highways that are special service roads are assigned SSR numbers and are unsigned. SSR numbers are in the 400-499 range. Another set of unsigned state highways are called State Roads and are given SR numbers. These state roads are either feeder roads that interconnect state highways together, or long entry/exit ramps to freeways (often called connector roads). SR numbers are in the 500-999 range. Signposted state highways that are not U.S. highways or interstates are signed with the square Connecticut state highway shield.

List of state routes

Signed Routes

Routes are signed state highways and are assigned numbers from 1 to 399 (with the exception of I-684 and I-691). All state, U.S. and Interstate highways are part of the same numbering system. In 1926, the U.S. highway system was implemented. U.S. Routes 1, 5, 6, and 7 were used as designations on several primary state highways, replacing New England routes 1, 2, 3, and 4, respectively. The other New England routes that were not re-designated as U.S. routes became ordinary state highways but kept their number designation, which are used even today (with some realignment). In 1958, Connecticut received approval for the route numbers of its three primary Interstate highways: I-84, I-91, and I-95. State highways with the same number designation as the Interstate highways were renumbered to avoid duplication of route numbers.

The chart below consists of all signed routes since the last statewide renumbering during the mid-1960s; as well as the former New England Interstate Routes (1920s).

2-59	60-119	120-179	179-239	240-691	Former
U.S. Route 1 Route 2 Route 2A Route 3 Route 4 U.S. Route 5 U.S. Route 6 U.S. Route 7 Route 8 Route 9 Route 10 Route 11 Route 12 Route 14 Route 14A Route 15  • Merritt Parkway  • Wilbur Cross Parkway  • Berlin Turnpike  • Wilbur Cross Highway Route 16 Route 17 Route 17A 30px Route 19 Route 20 Route 21 Route 22 Route 25 Route 27 Route 30 Route 31 Route 32 Route 33 Route 34 30px Route 35 30px Route 37 30px Route 39 Route 40 Route 41 Route 42 Route 43 U.S. Route 44 Route 45 Route 47 Route 49 30px Route 53 Route 55 Route 57 Route 58 Route 59	Route 61 Route 63 Route 64 Route 66 Route 67 Route 68 Route 69 Route 70 Route 71 Route 71A Route 72 Route 73 Route 74 Route 75 Route 77 Route 78 Route 79 Route 80 Route 81 Route 82 Route 83 Interstate 84 Route 85 Route 87 Route 89 Interstate 91 Route 94 Interstate 95 Route 97 Route 99 Route 100 Route 101 Route 102 Route 103 Route 104 30px Route 106 Route 107 Route 108 Route 109 Route 110 Route 111 Route 112 Route 113 Route 114 Route 115 Route 116 Route 117 Route 118	Route 120 New York Route 120A (part of it is in Connecticut) Route 121 30px Route 122 Route 123 30px Route 124 Route 125 Route 126 Route 127 Route 128 Route 130 Route 131 Route 132 Route 133 Route 135 Route 136 Route 137 Route 138 Route 139 Route 140 Route 142 Route 145 Route 146 Route 147 Route 148 Route 149 Route 150 Route 151 Route 152 Route 153 Route 154 Route 155 Route 156 Route 157 Route 159 Route 160 Route 161 30px Route 162 Route 163 Route 164 Route 165 Route 166 Route 167 Route 168 Route 169	Route 171 Route 172 Route 173 Route 174 Route 175 Route 176 Route 177 Route 178 Route 179 Route 181 Route 182 Route 182A Route 183 Route 184 Route 185 Route 186 Route 187 Route 188 Route 189 Route 190 Route 191 Route 192 30px Route 193 30px Route 194 Route 195 Route 196 Route 197 Route 198 Route 199 Route 200 Route 201 U.S. Route 202 Route 203 Route 205 Route 207 Route 209 Route 213 Route 214 Route 215 Route 216 Route 217 Route 218 Route 219 Route 220 Route 222 Route 229 Route 234	Route 243 Route 244 Route 254 Route 262 Route 263 Route 272 Route 275 Route 286 Route 287 Route 289 Interstate 291 Route 302 Route 305 Route 309 Route 313 Route 314 Route 315 Route 316 Route 317 Route 318 Route 319 Route 320 Route 322 Route 334 Route 337 Route 341 Route 343 Route 349 Route 354 Route 361 Route 364 Route 372 Interstate 384 Interstate 395 Interstate 684 Interstate 691	U.S. Route 5A U.S. Route 6A Route 9A Route 10A U.S. Route 44A Route 51 Route 52 Interstate 86 (renumbered) Interstate 284 (cancelled) Interstate 484 (cancelled) Interstate 491 (cancelled) New England Routes in Connecticut New England Route 1 New England Route 2 New England Route 3 New England Route 4 New England Route 8 New England Route 10 New England Route 12 New England Route 17 New England Route 32

Special Service Roads

Main article: List of Special Service Roads in Connecticut

Roads classified by the Department of Transportation as special service roads are given an unsigned number designation between 400 and 499. Special service roads are roads that connect a federal or state facility (including state parks and some Interstate Highway interchanges) to a signed state route.

State Roads

Main article: List of State Roads in Connecticut

State Roads are state-maintained roads that are usually long entrance/exit ramps to/from an expressway, or short interconnecting roads between signed routes. Roads classified by the Department of Transportation as state roads are given an unsigned number designation between 500 and 999. The first digit denotes which Maintenance District the road is mainly located in.

SR number	District	Region
500-599	1	Greater Hartford
600-699	2	Quiet Corner, Lower Connecticut River Valley, Southeastern Connecticut
700-799	3	Southwestern Connecticut, Greater New Haven
800-899	4	Naugatuck River Valley, Greater Danbury, Northwestern Connecticut
900-999	Statewide	Minor and very short (less than one mile) connector roads

History

1913 trunk line system

The 14 trunk line routes of the original state highway system of Connecticut

In 1900, the State Highway Department proposed a statewide system of trunk line routes. By 1913, the system consisted of 10 north-south highways and 4 east-west highways, including the lower Boston Post Road. The system covered roughly 1,400 miles (2,300 km). The 14 trunk lines were numbered on paper but were never actually signposted. The 14 trunk line routes were:

• Route 1: east-west from Greenwich to Stonington, roughly modern U.S. Route 1
• Route 2: north-south from Stamford to Salisbury, roughly modern Route 106, Route 33, Route 35, U.S. Route 7, Route 341, Route 41
• Route 3: north-south from Norwalk to North Canaan, roughly modern U.S. Route 7, Route 107, Route 53, Route 37, U.S. Route 202, Route 45, U.S. Route 7
• Route 4: north-south from Bridgeport to Colebrook, roughly modern Route 8
• Route 5: north-south from New Haven to Suffield via Cheshire (concurrent with Route 6 north of Hartford), roughly modern Route 10, Route 4, Route 159
• Route 6: north-south from New Haven to Suffield via Meriden (concurrent with Route 5 north of Hartford), roughly modern U.S. Route 5, Route 71, Route 159
• Route 7: north-south from New Haven to Enfield via Middletown, roughly modern Route 17, Route 99, U.S. Route 5
• Route 8: north-south from Old Saybrook to Hartford, roughly modern Route 9, Route 99
• Route 9: north-south from New London to Colebrook, roughly modern Route 85, Route 2, Route 189, Route 20
• Route 10: north-south from New London to Thompson, roughly modern Route 32, Route 169, Route 12, Route 193
• Route 11: north-south from Stonington to Woodstock, roughly modern Route 2, Route 32, U.S. Route 6, Route 198
• Route 12: east-west from Salisbury to Putnam, roughly Twin Lakes Road, modern U.S. Route 44
• Route 13: east-west from Kent to Sterling, roughly modern Route 341, U.S. Route 202, Route 118, Route 4, U.S. Route 6, Route 14
• Route 14: east-west from Sherman to Killingly, roughly Route 37, Route 67, Route 317, Route 64, Route 322, Route 66, U.S. Route 6

New England road marking system

The first public route numbering came with the advent of the New England road marking system of 1922. This highway numbering system was used throughout New England and consisted of 25 routes (with route numbers from 1 to 32). A total of 9 of the routes passed through Connecticut (Routes 1, 2, 3, 4, 8, 10, 12, 17, and 32). In this system, inter-state routes would be numbered 1-99 and state routes numbered 100 and up. The New England route system was soon eclipsed by the national U.S. highway system.

1922-1931

The State Highway Department classified state roads as either State Highways (SH) or State Aid Roads (SA). These roads were given number designations – 100-299 for primary routes and 300+ for secondary routes. Some state roads were signposted and some were not.

1932 renumbering

Main article: 1932 state highway renumbering (Connecticut)

The state abandoned its old numbering system and renumbered almost all of their state highways in 1932. Most of the present route numbers were formed during this renumbering. The only route numbers that survived were U.S. Routes and a few state highway routes. For route numbers established in 1932, the new numbering system used odd numbers for north-south routes and even numbers for east-west routes, matching the U.S. Highway numbering system. The New England routes that were grandfathered into the highway system (Routes 8, 10, 12, 32) did not follow the new system. The state also assigned new route numbers in clusters, with routes in the same general location having numbers close to each other as well. Shortly after the renumbering, in 1935, two new U.S. Routes were commissioned: US 44 (taking over part of old New England Route 17) and US 202.

1963 renumbering

In 1963, the state passed the Road Reclassification Act to fix the by now fragmented state highway system. Many state highways had state maintenance gaps and several highway segments were even isolated from the rest of the system. State highways were classified into primary, secondary, and service roads. Primary routes were essentially left unchanged, while minor realignments, additions/deletions, and extensions occurred in many secondary routes. About 1/3 of all routes were changed to some degree by this renumbering. The current system of unsigned ("secret") routes, including the special service roads, was also created during this renumbering. The state highway system has not had any major changes since then. The state completely abandoned the odd/even numbering scheme established in 1932 with new numbers in 1963 assigned without regard to their direction or general location.

See also

• List of crossings of the Connecticut River
• New England Interstate Routes
• Numbered highways in the United States
• List of unused highways in Connecticut

External links

• Connecticut State Numbered Routes and Roads as of December 31, 2004 (PDF)
• Official State Highway Map (PDF - 5 MB)
• Routes Page by Kurumi
• CT State Highway Endpoint Photos
• Connecticut US and State Route Listing (Greater New York Roads)