Rhode Island Route 138

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Route 138
RI-138 highlighted in red
Route information
Maintained by RIDOT and RITBA
Length	48.3 mi[1] (77.7 km)
Existed	1922 (north of Newport) 1932 (west of Newport)–present
Major junctions
West end	Route 138 in Voluntown, CT
Major intersections	I-95 in Richmond US 1 in North Kingstown Route 24 / Route 77 in Tiverton
North end	Route 138 in Fall River, MA
Location
Country	United States
State	Rhode Island
Counties	Washington, Newport
Highway system
Rhode Island Routes
← Route 136 → Route 142

Route 138 is a numbered State Highway running 48.3 miles (77.7 km) in Rhode Island. It is the longest state numbered route in Rhode Island, and the second longest highway after US 1. Route 138 begins in Exeter at the Connecticut state line in the west and runs to the Massachusetts state line in Tiverton in the east, and is the only state-numbered route to completely cross Rhode Island. Route 138 also keeps the same route number on the other side of both state lines.

Route 138 is a major thoroughfare in southern Rhode Island. The route ultimately connects Interstate 95 and the University of Rhode Island campus with the island town of Jamestown, the city of Newport, as well as the Tiverton-Little Compton coastal region. At the Massachusetts border in Fall River, the route continues as Massachusetts Route 138, which extends north into the Greater Boston area.