Interstate 691 Connecticut

Interstate 691 Connecticut
East End
West End


Interstate 691 branches east from I-84 along the Cheshire and Southington town line along a rural course to Crow Hollow along the Hanging Hills. Passing south of Cathole Mountain, the freeway enters the urban area of Meriden and continues north of the city center. I-691 connects with Route 15 (Wilbur Cross Parkway), Interstate 91 and Route 66 west of Higby Mountain. Route 66 east extends the freeway north of Beseck Mountain into the town of Middlefield.


Interstate 691 began as a freeway for U.S. 6A between Exits 8 and 13 in 1965. By 1969, the designation shifted from U.S. 6A to Connecticut 66, with construction extending the road west to Exit 4 by 1970. Interstate 691 was established by AASHTO along with I-284 in Hartford on July 13, 1976. I-691 however was not signed until 1987, one year prior to the completion of its connection to Interstate 84.1

Route Information

  • East End – Meriden, CT

  • West End – Cheshire, CT

  • Mileage – 8.38

  • Cities – Meriden

  • JunctionsI-84 I-91

Source: December 31, 2018 Interstate Route Log and Finders List

I-691 Annual Average Daily Traffic (AADT)

East End I-91 Connecticut 66 – Meriden, Connecticut

Perspective from Interstate 691 east
Interstate 691 leaves the parclo interchange (Exit 8) with U.S. 5 (Broad Street) on the approach to Interstate 91 and Route 15. Forthcoming Exit 10 links with Route 15 (Wilbur Cross Parkway) south leading into the I-91 exchange with Main Street in Meriden. Photo taken 06/26/05.
Exit 10 departs Interstate 691 eastbound for Route 15 (Wilbur Cross Parkway) south to I-91 south. Route 15 travels 6.7 miles to Wallingford; Interstate 91 ends 20 miles southward at I-95 by the Pearl Harbor Memorial Bridge in New Haven. Photo taken 06/26/05.
A left exit follows from I-691 east onto Interstate 91 northbound directly to Wethersfield and Hartford. Exit numbers along Route 66 continue the numbering system of I-691 to Preston Avenue. Photo taken 06/26/05.
Exit 12 comprises a half diamond interchange joining Route 66 with Preston Avenue on the east side of Meriden. Preston Avenue heads south to Main Street and north to I-91 at Baldwin Avenue. Photo taken 06/26/05.
The Route 66 freeway extends across the Middlesex County line to a wye interchange with Main Street. Photo taken 06/26/05.
Main Street (old U.S. 6 Alternate) converges with Route 66 through a gap between Higby and Beseck Mountain. Route 66 continues 0.75 miles east to a signalized intersection with Route 147 (Baileyville Road) south in Middlefield. Photo taken 06/26/05.
Perspective from Connecticut 66 and Interstate 691 west
Route 66 (Meriden Road) expands into an expressway west from the Mattabesett Trail head for Higby Mountain. The wye interchange (Exit 13) with East Main Street (historic U.S. 6 Alternate) follows. Photo taken 06/26/05.
East Main Street splits with Route 66 at a left exit. Crossing into the city of Meriden, Route 66 turns northwest toward the exchange with Interstate 91 and Route 15 (Wilbur Cross Parkway). Photo taken 06/26/05.
The entrance ramp from Preston Avenue adds an auxiliary lane along Route 66 westbound to I-91 north at Exit 11. Interstate 691 formally begins at the I-91 underpass. Photo taken 06/26/05.
Exit 10 departs from the left side of I-691 for Interstate 91 and Route 15 (Wilbur Cross Parkway) south to Wallingford and New Haven. Photo taken 06/26/05.
Interstate 91 and Route 15 (Wilbur Cross Parkway) parallel one through a parclo interchange with Main Street in Meriden. The two separate southward to the town of New Haven. Photo taken 06/26/05.
Perspective from Interstate 91 north
I-91 and Route 15 (Wilbur Cross Parkway) run directly along side each north from a wye interchange adjacent to an area of wetlands along Willow Brook. A slip ramp (Exit 17) joins the two northbound roadways ahead of Main Street in Meriden. Route 15 provides the connection from I-91 north to I-691 west. Photo taken 08/09/04.
With ten overall lanes, the separate roadways for I-91 and Route 15 pass under Main Street ahead of their separation. A loop ramp merges with Route 15 north ahead of ramps (Exit 68) for I-91 north and Interstate 691 west. Photo taken 08/09/04.
Route 15 shifts west from I-91 at a wye intercahnge preceding Exit 68W for Interstate 691 to Waterbury. Photo taken 08/09/04.
Interstate 91 turns northeasterly from Route 15 to meet the east end of I-691 directly at Exit 18. Route 66 extends the freeway east to the Middlefield town line. Photo taken 08/09/04.
Exit 18 departs Interstate 91 north for Route 66 east to Preston Street in Meriden and the city of Middletown beyond Higby Mountain. I-91 advances north to Hartford. Photo taken 08/09/04.

West End I-84 – Cheshire, Connecticut

Perspective from Interstate 691 west
Interstate 691 separates into ramps for Interstate 84 (Exits 2/1) 0.75 miles beyond the Route 10 (Highland Avenue) overpass in north Cheshire. Photo taken by Douglas Kerr (06/02/02).
Traffic along I-691 westbound defaults onto Interstate 84 west, nine mile from Downtown Waterbury. Exit 2 directs motorists northward along I-84 east through the town of Stonington back toward the cities of Hartford and New Britain. Photo taken by Douglas Kerr (06/02/02).
Perspective from Interstate 84 west
The directional T interchange (Exit 27) with Interstate 691 east expands over the folded diamond interchange (Exit 28) with Route 322 (Meriden-Waterbury Turnpike) at the Stonington neighborhood of Marion. Photo taken by Douglas Kerr (08/07/02).
Perspective from Interstate 84 east
Interstate 84 traverses the foothills south of Stonington Mountain on the approach to Exit 27 with I-691 east. Photo taken 06/26/05.
Back to back off-ramps depart from I-84 east within a quarter mile for Interstate 691 east to Meridian and Route 322 (Meriden Waterbury Turnpike) at the Marion and Middledale neighborhoods in the town of Stonington. Photo taken 06/26/05.
A small diagrammatic overhead outlines the ensuing exits for Interstate 691 (Exit 27) and Connecticut 322 (Exit 28). Heading east through New Haven County, I-691 and Connecticut 322 parallel one another to Pratts Corner and Hubbard Park. Photo taken 06/26/05.
Exit 27 leaves I-84 east beyond the Marion Road overpass for I-691 east to Meriden and Middlefield. Photo taken 06/26/05.

Page updated February 15, 2019.