 After exit 6 , Route 4 passes the Rhode Island Army National Guard base to the east and to the Hunt River to the west . Route 4 northbound interchanges with Route 403 at exit 7 ; Route 403 , or the Quonset Freeway , is a four @-@ lane , limited access freeway and spur route of Route 4 that serves the Quonset Business Park and the village of Davisville . Heading southbound , exit 7 is split into exit 7B , which serves the Quonset Freeway , and exit 7A , which serves Route 402 ( Frenchtown Road ) , another spur route connecting the highway to US 1 and Route 2 . After exit 7 , Route 4 continues northward as a six @-@ lane expressway , passing farmlands to the west and entering a suburban region of East Greenwich . The highway crosses under an overpass at Middle Road before interchanging with Route 401 , the freeway 's final spur , at another partial cloverleaf interchange . Exit 8 is also used to access Route 2 and I @-@ 95 south , which has no direct freeway connection with Route 4 north . Shortly after exit 8 , the Route 4 designation ends and the mainline of the highway defaults onto I @-@ 95 north . 
 After exit 6 , Route 4 <a href='uninflect' title='1'><mark>passes</mark></a> the Rhode Island Army National Guard base to the east and to the Hunt River to the west . Route 4 northbound interchanges with Route 403 at exit 7 ; Route 403 , or the Quonset Freeway , <a href='drop_aux' title='2'><mark>is</mark></a>a four @-@ lane , limited access freeway and spur route of Route 4 <a href='null_relcl' title='3'><mark>that</mark></a><a href='uninflect' title='4'><mark>serves</mark></a> the Quonset Business Park and the village of Davisville . Heading southbound , exit 7 is split into exit 7B , which <a href='uninflect' title='5'><mark>serves</mark></a> the Quonset Freeway , and exit 7A , which <a href='uninflect' title='6'><mark>serves</mark></a> Route 402 ( Frenchtown Road ) , another spur route connecting the highway to US 1 and Route 2 . After exit 7 , Route 4 <a href='uninflect' title='7'><mark>continues</mark></a> northward as a six @-@ lane expressway , passing farmlands to the west and entering a suburban region of East Greenwich . The highway <a href='uninflect' title='8'><mark>crosses</mark></a> under an overpass at Middle Road before interchanging with Route 401 , the freeway <a href='null_genetive' title='9'><mark>'s</mark></a>final spur , at another partial cloverleaf interchange . Exit 8 is also used to access Route 2 and I @-@ 95 south , which <a href='got' title='10'><mark>has</mark></a> no direct freeway connection with Route 4 north . Shortly after exit 8 , the Route 4 designation ends and the mainline of the highway defaults onto I @-@ 95 north . 
After exit 6 , Route 4 pass the Rhode Island Army National Guard base to the east and to da Hunt River to tdawest . Route 4 northbound interchanges with Route 403 at exit 7 ; Route 403 , or thdauonset Freeway , a 4 @-@ lane , limited access freeway and spur route of Route 4 serve the Quonset Business Park and the village of Davisville . headin southbound , exit 7 is split into exit 7B , which serve the Quonset Freeway , and exit 7A , which serve Route 402 ( Frenchtown Road ) , anotha spur route connecting the highway to US 1 and Route 2 . After exit 7 , Route 4 continue northward as a six @-@ lane expressway , passin farmlands to the west and entering a suburban region of East Greenwich . The highway cross under an overpass at Middle Road b4 interchanging witt Route 401 , the freeway  final spur , at aanothapartial cloverleaf interchange . Exit 8 is also used to access Route 2 and I @-@ 95 south , which got no direct freeway connection with Route 4 north . Shortly after exit 8 , thedaute 4 designation ends and the danline of the highway defaults onto I @-@ 95 north .