National Park Service Wild and Scenic River Study was completed in 1993. Segment length increased from eight miles to twenty-six miles as a result of Sewall Falls Dam being breached and restoring free flowing water conditions. The NPS study also found that the previously listed five mile segment from the confluence with Suncook River to the confluence with Soucook River was no longer eligible for listing due to flooding by the Hooksett Dam. Hydrologic-(One of two remaining sparsely developed, free-flowing segments of a unique high order stream.) Recreation-(Unique proximity to regionally significant population concentrations in Concord and Manchester.) Geologic-(Area is part of Lake Winnipesaukee composite landscape area which includes significant portions of 1 of 7 regionally unique composite landscapes. These areas, where four or more different major landscape patterns- landform, land use, vegetation, water-- come together in juxtaposition, are the most diverse places in the northeast.) Fish-(River is a significant Atlantic Salmon fishery under restoration.) Cultural-(River is historically reported to be the most noted waterpower stream in the world, during the 19th century industrial era.)