Although it is officially logged as an east-west route, it is signed north-south.

[1] In Tolland, Route 31 continues southeast before turning south briefly before crossing into Coventry.

In Coventry, Route 31 continues south to a concurrency with US 44.

The two highways run together for slightly more than one mile (1.6 km) before Route 31 heads southeast, crossing Route 275 before continuing into Mansfield.

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