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  • Length 13.05 miles; 8.37 miles long in Connecticut
  • From US 1 in Norwalk
  • To NY 35 (connects to CT 35) near South Salem, New York

Follow Route 123 from Norwalk and you'll pass through New Canaan, getting close to (but not intersecting) Route 124. After a four-mile stretch in New York, Route 123 ends at NY 35, about 0.2 miles from the Connecticut state line. No state route leaves Connecticut and re-enters it, but Route 123 comes close.

CT 123 History

Before the 1932 renumbering

In the 1920s, State Highway 123 was an east-west route from Cornwall to Canton:

At that time, present-day Route 123 north of New Canaan was called SH 184, and south of there, SH 302.

Norwalk Road (today's Route 123) was the first major road in New Canaan, connecting the town to Norwalk Harbor. In 1925, Norwalk officials submitted a bill to add a state highway along this road: from Nash's Corner in Norwalk via New Canaan Center and Selleck's Corners (Route 124 at West Road) in New Canaan to New York. This route is fairly close to the Route 29 shown on the 1932 highway map.

In 1931, New Canaan residents were asked to vote on the alignment of a new state highway leading from the town center to New York State. The route from Norwalk (along New Canaan and Norwalk roads) had already been established. The alternatives were:

The Smith Ridge route narrowly beat out the new route, and soundly beat the Route 124 option.

Modern Route 123

Today's Route 123 was commissioned in 1932. Its original alignment, from south to north:

The 1932 official highway map contradicts the state's route change spreadsheet and other sources: there, from New Canaan center south, Route 123 goes to Darien while Route 29 (today's Route 124) goes to New Canaan. By 1934, these routes are in their usual locations. On the 1932 map, Route 104 and Route 137 are also swapped in Stamford.

Around 1935, the New Norwalk Road segment opened in New Canaan.

In 1970, Route 123 was moved from Riverside Avenue to Main Street in downtown Norwalk. This was one of several road changes resulting from US 7 freeway construction; that route opened in 1971. The leftover portion of Route 123 became SR 809.

In the 1980s Route 123 was for a time known as Beer Can Boulevard, because of a three-year differential between drinking ages in Connecticut (21) and nearby New York state (18). "Budd" writes: "...teenagers would run across the state line to drink...on returning it was littered with beer cans, wrecked cars and death, earning it its name."

CT 123 Quotes

"Originally, [the US 7 freeway] was to have been built on Route 123 through the town of New Canaan, as Route 123 was preferable and it would not need to be elevated or go through rough terrain and massive watersheds. That community fought this highway with high powered attorneys and won. Other communities would undoubtedly employ same strategy."

This is part of a 2007 letter to the editor of the Norwalk Hour by state legistator Toni Boucher. The notion of "Super 7" going through New Canaan is surprising. Boucher also states that the US 7 freeway would go through Connecticut's only National Park.

CT 123 Sources