Merrimack County offers multiple boat ramp access points along the Merrimack River and its associated waters.

Key facilities include the Merrimack River Boat Ramp near Boscawen (State NHFG & County operated), Merrimack River ramps at East Concord and Sewalls Falls near Concord, and various cartop facilities for smaller craft.

Most ramps accommodate trailer launches with varying conditions—some feature gravel surfaces while others are paved—and several have limited parking; check specific site conditions before visiting, as some areas have trout water restrictions and speed limit regulations.