Water District Drinking Water Source
Cocheco River Watershed
Clark Brook flows into Dover from Rochester where it passes through a culvert under the Spaulding Turnpike. It runs south for a half mile, through an area of forest and wetlands until it joins Blacksmith Brook. This brook flows into Dover from Somersworth near several homes on Blackwater Road. It crosses under the road and then runs along a farm field before passing through a culvert under the Spaulding Turnpike. Over the next mile and three quarters the brook flows through undeveloped forest and its banks form a narrow marsh in places. Blackwater Brook flows into the Cocheco River just west of several large farms on County Farm Cross Road.
Reyners Brook originates in a marsh area near a subdivision on Varney Road. It flows past numerous homes in this residential area and passes through a culvert under the Spaulding Highway. On the other side of the highway the brook continues to flow past many homes as it parallels Reyners Brook Drive in a narrow marsh. The brook crosses 6th Street and forms another small marsh as it backs up behind a culvert on County Farm Road. Reyners Brook then passes the culvert and joins the Cocheco River.
Fresh Creek flows into Dover from Rollinsford and forms a pond behind a causeway on Gulf Road. The shores of the creek are bordered by several large farms and the Cocheco Country Club. Below the causeway the creek becomes brackish with incoming tidal waters. Here, a horse farm and fields behind several homes come right down to the water. Fresh Creek flows into the Cocheco River near a large estate at the end of Three Rivers Farm Road.
The Cocheco River spans the entire width of Dover. It enters from Rochester near a large gravel pit on Rochester Neck Road, and winds its way past a large Department of Corrections facility on County Farm Road. As it makes its way east the river passes numerous homes and passes under a bridge on Watson Road where it begins to parallel an old railroad track in an area of relatively little development. The Cocheco River flows under a bridge on the Spaulding Turnpike and passes into an area of dense development in the center of Dover. As the river enters the downtown area it passes a bridge on 4th Street, another below the railroad tracks, and then flows over dam upstream of the Chestnut Street Bridge. Shortly after this bridge, the river passes another dam at the site of several mill buildings built over the river, in the heart of downtown Dover. As it leaves the densest areas of town the Cocheco River more homes and businesses and then the Cocheco Country Club on its northern bank. For the next mile and three quarters, the shoreline of the river gradually transitions from dense buildings and pavement, to forest and farm fields, and the river becomes brackish with incoming tidal water. Finally, the Cocheco River converges with the Salmon Falls River at the New Hampshire and Maine border.
Salmon Falls River Watershed
Willand Pond lies across the Dover border with Somersworth in a dense residential and commercial area along New Rochester Road. There is a small park on this road with public boat access. The outlet of the pond is in Somersworth and eventually flows into the Salmon Falls River.
Garvin Brook flows into Dover from Somersworth in a wooded area east of Three Rivers Farm Road. It runs for a quarter mile and then joins the Salmon Falls River. The Salmon Falls River forms Doverís eastern border with South Berwick, Maine. The river here is broad and tidally influenced. It flows under the bridge on Gulf Road, passing several farms on its banks, and then converges with the Cocheco River.
Piscataqua River Watershed
The Piscataqua River begins where the Salmon Falls River and the Cocheco River converge. Its waters are brackish and influenced by the incoming tides. The Dover shoreline is well developed with homes along Middle Road and Dover Point Road. The development becomes denser as the river moves south and then passes into Newington.