 From here, Route 10 heads through a commercial zone, expands to four lanes, and comes to a partial cloverleaf interchange with I-84, before it narrows back to two lanes after its intersection with West Queen Street.The route enters the town of Plainville as it intersects the southern terminus of Route 177, where its name also changes to East Street.In Plainville, Route 10 heads through a mix of residential and commercial areas, before it crosses the Highland Division of the former New York, New Haven, and Hartford Railroad at a grade crossing, and shortly afterward, Route 372 at an oblique intersection; eastbound Route 372 provides access to both the I-84 and the eastbound direction of the Route 72 freeway.