Fort Constitution is a historic fort with an identity crisis. While the Fort is a New Hampshire State Park it is within an active area of a US Coast Guard base. As a result, visiting the fort is hit or miss. After making the three hour drive, I was only able to see the part of the fort through a rusty fence or from across the Piscataqua River.
The Fort was established pre-Revolutionary War (1631) to protect the Colonies and harbor. The Fort was taken by Patriots during the Revolutionary War. There are several structures on the grounds including the Portsmouth Harbor Lighthouse, the fort itself, Battery Farnsworth (built 1899) and the ruins of Walbach Tower (built 1814).
The drive across New Castle island to the fort is lovely with old New England homes. There is a small parking lot at the entrance to the park. I've since learned that there is a way to drive over to the fort, perhaps the best way is to ask when you arrive.
There is designated parking outside the fence where you can view the old battery and read about the history of the Walbach Tower. The Tower was built during the War of 1812 and has since collapsed. The Farnsworth Battery became decommissioned in 1917 when the guns were moved to Europe during WWI.
There's a lot of interesting history at the site. Call the Park before coming to learn how to get in. read more