Merrimack Valley Seaplane Base is a privately owned, public-use seaplane base located three miles (5 km) west of the central business district of Methuen, a city in Essex County, Massachusetts, United States.Facilities and aircraftMerrimack Valley Seaplane Base has two landing areas: Runway 1/19: 5,000 x 250 ft. (1,524 x 76 m), Surface: Water Runway 4/22: 4,700 x 250 ft. (1,433 x 76 m), Surface: Water For the 12-month period ending October 1, 2006, the airport had 4,565 general aviation aircraft operations, an average of 12 per day.
