Route 117 is a 28.4-mile-long (45.7 km)state route in the U.S. state of Rhode Island. Its western terminus is at Route 14 in Coventry, and its eastern terminus is at U.S. Route 1A (US 1A) in Cranston.
- Coventry: 14.0 miles (22.5 km); Route 14 to West Warwick town line
- Flat River Road, Main Street and Washington Street
- West Warwick: 1.8 miles (2.9 km); Coventry town line to Warwick city line
- West Warwick Avenue, Main Street and Legris Avenue
- Warwick: 8.4 miles (13.5 km); West Warwick town line to Cranston city line
- Legris Avenue, Centerville Road, [Post Road] (Greenwich Avenue, Veterans Memorial Drive, Post Road), West Shore Road, Shore Road and Warwick Avenue
- Cranston: 0.6 miles (1.0 km); Warwick city line to US 1A (Intersection of Warwick Avenue, Norwood Avenue and Broad Street)
- Warwick Avenue
Route 117 was one of the original Rhode Island State highways, instated in 1922. Its alignment has changed little since that time.
In the late 1990s, Route 117’s eastern terminus was cut back. Originally, Route 117 stayed with Broad Street through Cranston and into Providence, ending at U.S. 1. The reason the eastern terminus was trimmed back is unclear.