Saint Paul - Portsmouth, Est. 1824 In the city of Portsmouth, beginning at the juncture of the Western Branch of the Elizabeth River and Baines Creek, south along Baines Creek to Portsmouth Boulevard, east along Portsmouth Boulevard to Interstate 264, southwest on I-264 to Pocahontas Road, south on Pocahontas Road to Elliott Avenue, northeast along Elliott Avenue to the Norfolk and Portsmouth Belt Line (NPB) rails, east along the NPB rails to the Southern Branch of the Elizabeth River, north along the Southern Branch of the Elizabeth River, follow the Portsmouth city line, west along the Elizabeth River to the juncture of the Western Branch of the Elizabeth River and Baines Creek, which is the starting point.