Interstate 291 (Massachusetts)
| Springfield Expressway | ||||
I-291 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-91 | ||||
| Maintained by MassDOT | ||||
| Length | 5.44 mi (8.75 km) | |||
| Existed | 1971–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| West end | I-91 / US 20 in Springfield | |||
| East end | I-90 / Mass Pike in Chicopee | |||
| Location | ||||
| Country | United States | |||
| State | Massachusetts | |||
| Counties | Hampden | |||
| Highway system | ||||
| ||||
Interstate 291 (I-291), also known as the Springfield Expressway, is a 5.44-mile (8.75 km) auxiliary Interstate Highway in Massachusetts that links I-91 in downtown Springfield with I-90 (Massachusetts Turnpike) in Chicopee. I-291 is roughly a northeast–southwest highway. It merges with I-91 at its southwestern terminus, via a flyover. The road meets the turnpike at its northeastern terminus. Getting onto the turnpike from I-291 is straightforward, but getting from the turnpike to I-291 requires a left turn at an at-grade traffic signal. I-291 travels directly through highly populated areas of Springfield and passes under several overpasses. From its southwestern terminus to exit 5A, I-291 is concurrent with US Route 20 (US 20).
I-291 is only 22.4 miles (36.0 km) from Interstate 291 in Connecticut, and there are no intervening Interstate Highway interchanges between them.