 | This article needs additional citations for verification. (November 2023) |
 Interstate 691 | ||||
|---|---|---|---|---|
| Henry D. Altobello Highway | ||||
 I-691 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-91 | ||||
| Maintained by CTDOT | ||||
| Length | 8.38 mi[1] (13.49 km) | |||
| Existed | 1988 (completed)–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| West end |  I-84 near Southington | |||
 US 5 in Meriden | ||||
| East end |    I-91 / Route 66 / Route 15 / Wilbur Cross Parkway in Meriden | |||
| Location | ||||
| Country | United States | |||
| State | Connecticut | |||
| Counties | Hartford, New Haven | |||
| Highway system | ||||
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Interstate 691 (I-691) is an auxiliary Interstate Highway in Connecticut beginning at I-91 in Meriden and ending at I-84 near the Cheshire–Southington town line. According to the Federal Highway Administration, it is 8.38 miles (13.49 km) in length;[1] however, the Connecticut Department of Transportation (CTDOT) includes the 0.54 miles (0.87 km) of the exit ramp that I-691 uses to the merge with westbound I-84, making their recorded length 8.92 miles (14.36 km) long.[2]
I-691 is also known as the Henry D. Altobello Highway for its entire length.
- ^ a b Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved December 11, 2022.
- ^ "Highway Log - Connecticut State Numbered Routes and Roads" (PDF). Connecticut Department of Transportation. December 31, 2014. Archived from the original (PDF) on September 5, 2015. Retrieved December 11, 2022.