last time before turning eastward along Martine Street onto the "Narrows", the thin strip of land between the Watuppa Ponds that also carries the interstate between Fall River and Westport. Once over the Narrows, the road turns southeast, traveling through the town. I-195 can be accessed from Route 6 in Westport via Route 88, which intersects with Route 6 shortly before meeting its northern terminus at the Interstate. At the Dartmouth line, the road serves as the eastern terminus of Route 177. After passing through the Dartmouth retail area and two roads (Reed Road and Faunce Corner Road) that provide access to I-195, the route passes into the city of New Bedford. In New Bedford, the route splits just east of the southern terminus of Route 140 onto Kempton Street (eastbound) and Mill Street (westbound), two one-lane, one-way streets. The two halves join again to serve as the southern terminus of Route 18 just before crossing the New Bedford – Fairhaven Bridge into the town of Fairhaven. After serving as the southern terminus of Route 240 the route continues east into Mattapoisett and Marion along a four-lane road. Access to I-195 is provided in both towns along North Street in Mattapoisett and Route 105 in Marion. US 6 then crosses the Weweantic River into Wareham. In the central part of town, the route turns southeast along Main Street, then east-northeast along Sandwich Road before beginning a concurrency with Route 28, with the first being split one-way between east and west, just south of Route 25, the major connecting highway between Cape Cod and I-195 and I-495. The route passes through busy retail area of East Wareham before passing into Buzzards Bay. The two routes split into east and west one-way sections again before Route 28 leaves the concurrency to cross the Bourne Bridge across the Cape Cod Canal. US 6 then follows the western side of the canal along the Scenic Highway into Sagamore before joining the right-of-way for Route 3 that ends at the Sagamore Bridge, in which US 6 crosses onto Cape Cod proper. Cape Cod US 6 is the primary highway serving the towns of Cape Cod, linking the communities to the Sagamore Bridge and to subsequent points north and west. Of the 15 towns on the cape, US 6 enters all but three of them; it runs completely to the north of Falmouth, Mashpee, and Chatham.