The Cape Cod Canal is an artificial waterway in Massachusetts connecting Cape Cod Bay in the north to Buzzards Bay in the south, and is part of the Atlantic Intracoastal Waterway. The approximately 17.4-mile (28.0 km) long canal traverses the neck of land joining Cape Cod to the state's mainland. It mostly follows tidal rivers widened to 480 feet (150 m) and deepened to 32 feet (9.8 m) at mean low water, shaving up to 135 miles (217 km) off the journey around the Cape for its approximately 14,000 annual users.
Fort Miles was a United States Army World War II installation located on Cape Henlopen near Lewes, Delaware. Although funds to build the fort were approved in 1934, it was 1938 before construction began on the fort. On 3 June 1941 it was named for Lieutenant General Nelson A. Miles.
Fort Taber District or the Fort at Clark's Point is a historic American Civil War-era military fort on Wharf Road within the former Fort Rodman Military Reservation in New Bedford, Massachusetts. The fort is now part of Fort Taber Park, a 47-acre town park located at Clark's Point. Fort Taber was an earthwork built nearby with city resources and garrisoned 1861-1863 until Fort Rodman was ready for service.
Fort Mansfield was a coastal artillery installation located on Napatree Point, a long barrier beach in the village of Watch Hill in Westerly, Rhode Island.
The Panama Mount is a form of gun mount for fixed coastal artillery developed by the U.S. Army in Panama during the 1920s. Widely used during the buildup to and during World War II by the United States military, it was typically equipped with a 155 mm (6.1 in) rifled gun.
Barneys Joy Point Military Reservation was a World War II coastal defense site located in Dartmouth, Massachusetts.
Brewster Islands Military Reservation was a coastal defense site located on Great Brewster Island and Outer Brewster Island in Boston Harbor, Massachusetts as part of the Harbor Defenses of Boston.
East Point Military Reservation was a World War I and World War II coastal defense site located in Nahant, Massachusetts. In 1955–62 it was a Nike missile launch site. In 1967 the site was converted into the Marine Science Center of Northeastern University.
Fourth Cliff Military Reservation was a World War II coastal defense site located near Scituate, Massachusetts, USA. It is now a recreation area for Hanscom Air Force Base.
Mishaum Point Military Reservation was a coastal defense site located in Dartmouth, Massachusetts as part of the Harbor Defenses of New Bedford.
Salisbury Beach Military Reservation was a coastal defense site located in Salisbury, Massachusetts.
Fort Duvall was a Coast Artillery fort, part of the Harbor Defenses of Boston, in Massachusetts. What was then called Hog Island in Hull, Massachusetts was acquired by the U.S. government in 1917, and the fort was constructed in the early 1920s. It had only one gun battery, Battery Long, but it mounted the largest caliber weapons in the entire harbor defense system: a pair of 16-inch guns. These were the 16-inch gun M1919, of which only seven were deployed; 16-inch weapons deployed later were supplied by the Navy.
Fort Ruckman was a U.S. Coast Artillery fort located in Nahant, Massachusetts. Originally called the Nahant Military Reservation, the fort was laid out in 1904-1907 and covered an area of about 45 acres just northwest of Bass Point, on the southwest side of the Nahant peninsula. During the 1920s, this area was renamed in honor of Maj. Gen. John Wilson Ruckman, a former Colonel in the Coast Artillery.
Fort Williams is a former United States Army fort in Cape Elizabeth, Maine which operated from 1872 to 1964. It was part of the Coast Defenses of Portland, later renamed the Harbor Defenses of Portland, a command which protected Portland's port and naval anchorage 1904–1950. After its closure, it was redeveloped into Fort Williams Park.
Fort Church was a World War II United States Army coastal defense fort in Little Compton, Rhode Island. Together with Fort Greene near Point Judith, it superseded all previous heavy gun defenses in the Harbor Defenses of Narragansett Bay.
Butler Point Military Reservation was a coastal defense site located in Marion, Massachusetts as part of the defenses of the Cape Cod Canal.
The Harbor Defenses of Portland was a United States Army Coast Artillery Corps harbor defense command. It coordinated the coast defenses of Portland, Maine, the mouth of the Kennebec River, and surrounding areas from 1895 to 1950, beginning with the Endicott program. These included both coast artillery forts and underwater minefields. The command originated circa 1895 as the Portland Artillery District, was renamed Coast Defenses of Portland in 1913, and again renamed Harbor Defenses of Portland in 1925.
The Harbor Defenses of Boston was a United States Army Coast Artillery Corps harbor defense command. It coordinated the coast defenses of Boston, Massachusetts from 1895 to 1950, beginning with the Endicott program. These included both coast artillery forts and underwater minefields. The command originated circa 1895 as the Boston Artillery District, was renamed Coast Defenses of Boston in 1913, and again renamed Harbor Defenses of Boston in 1925.
Oak's Inn Military Reservation was a coastal defense site located in Misquamicut, Rhode Island in the town of Westerly, overlooking Misquamicut State Beach. It was part of the Harbor Defenses of Long Island Sound. Today, the site is a residential development.
The Harbor Defenses of New Bedford was a United States Army Coast Artillery Corps harbor defense command. It coordinated the coast defenses of New Bedford, Massachusetts and the nearby Cape Cod Canal from 1900 to 1950, beginning with the Endicott program. These included a coast artillery fort and an underwater minefield. The command originated circa 1900 as the New Bedford Artillery District, was renamed Coast Defenses of New Bedford in 1913, and again renamed Harbor Defenses of New Bedford in 1925.
