Fort Delaware State Park is a , Delaware state park on Pea Patch Island in the mid channel of the

Delaware River The Delaware River is a major river in the Mid-Atlantic region of the United States and is the longest free-flowing (undammed) river in the Eastern United States. From the meeting of its branches in Hancock, New York, the river flows for a ...

near its entrance into

Delaware Bay Delaware Bay is the estuary outlet of the Delaware River on the northeast seaboard of the United States, lying between the states of Delaware and New Jersey. It is approximately in area, the bay's freshwater mixes for many miles with the saltw ...

. It is a low, marshy island in New Castle County,

Delaware Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...

, facing

Delaware City Delaware City is a city in New Castle County, Delaware, United States. The population was 1,885 as of 2020. It is a small port town on the eastern terminus of the Chesapeake and Delaware Canal and is the location of the Forts Ferry Crossing to ...

on the Delaware shore and Finns Point on the

New Jersey New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeas ...

shore.

Fort Delaware Fort Delaware is a former harbor defense facility, designed by chief engineer Joseph Gilbert Totten and located on Pea Patch Island in the Delaware River.Dobbs, Kelli W., et al. During the American Civil War (1861-1865), the Union / Unite ...

was built on Pea Patch Island by the

United States Army The United States Army (USA) is the primary Land warfare, land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution.Article II, section 2, clause 1 of th ...

in 1815, near the conclusion of the

War of 1812 The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...

, to protect the

harbor A harbor (American English), or harbour (Commonwealth English; see spelling differences), is a sheltered body of water where ships, boats, and barges can be moored. The term ''harbor'' is often used interchangeably with ''port'', which is ...

s of

Wilmington, Delaware Wilmington is the List of municipalities in Delaware, most populous city in the U.S. state of Delaware. The city was built on the site of Fort Christina, the first Swedish colonization of the Americas, Swedish settlement in North America. It lie ...

and

Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...

Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...

. The fort was burned and rebuilt in the years prior to the

American Civil War The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...

, and soon after the start of the war the fort was converted to a

Prisoner of War A prisoner of war (POW) is a person held captive by a belligerent power during or immediately after an armed conflict. The earliest recorded usage of the phrase "prisoner of war" dates back to 1610. Belligerents hold prisoners of war for a ...

camp. Fort Delaware continued to protect the mouth of the Delaware River through

World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

and II. Pea Patch Island and Fort Delaware was declared surplus land by the

United States Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an United States federal executive departments, executive department of the federal government of the United States, U.S. federal government charged with coordinating and superv ...

in 1945. Fort Delaware State Park, one of the first

state park State parks are parks or other protected areas managed at the sub-national level within those nations which use "Federated state, state" as a political subdivision. State parks are typically established by a state to preserve a location on accou ...

s in Delaware, was established in 1951. The park, which can only be accessed by

ferry A ferry is a boat or ship that transports passengers, and occasionally vehicles and cargo, across a body of water. A small passenger ferry with multiple stops, like those in Venice, Italy, is sometimes referred to as a water taxi or water bus ...

, is open for historic programs at Fort Delaware. The fort is listed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the Federal government of the United States, United States federal government's official United States National Register of Historic Places listings, list of sites, buildings, structures, Hist ...

. In addition to historical preservation, Fort Delaware State Park is also open for

picnic A picnic is a meal taken outdoors (Al fresco dining, ''al fresco'') as part of an excursion, especially in scenic surroundings, such as a park, lakeside, or other place affording an interesting view, or else in conjunction with a public event su ...

king and

hiking A hike is a long, vigorous walk, usually on trails or footpaths in the countryside. Walking for pleasure developed in Europe during the eighteenth century. Long hikes as part of a religious pilgrimage have existed for a much longer time. "Hi ...

. The island also provides a significant

wetland A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...

s stop for migratory birds including

heron Herons are long-legged, long-necked, freshwater and coastal birds in the family Ardeidae, with 75 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genus ''Botaurus'' are referred to as bi ...

s along the Atlantic Flyway. Visitors to the park may reach it by ferry from Delaware City or Fort Mott State Park in

. Fort Delaware State Park is from Delaware City via the Forts Ferry Crossing. Passengers aboard the ferry are granted access to Fort Mott State Park.

History

Pea Patch Island emerged as a mud bank in the Delaware River in the 18th century. According to

folklore Folklore is the body of expressive culture shared by a particular group of people, culture or subculture. This includes oral traditions such as Narrative, tales, myths, legends, proverbs, Poetry, poems, jokes, and other oral traditions. This also ...

, the

island An island or isle is a piece of land, distinct from a continent, completely surrounded by water. There are continental islands, which were formed by being split from a continent by plate tectonics, and oceanic islands, which have never been ...

received its name after a ship full of

pea Pea (''pisum'' in Latin) is a pulse or fodder crop, but the word often refers to the seed or sometimes the pod of this flowering plant species. Peas are eaten as a vegetable. Carl Linnaeus gave the species the scientific name ''Pisum sativum' ...

s ran aground on it, spilling its contents and leading to a growth of the plant on the island. In the 1790s,

Pierre L'Enfant Pierre "Peter" Charles L'Enfant (; August 2, 1754June 14, 1825) was a French-American artist, professor, and military engineer. In 1791, L'Enfant designed the baroque-styled plan for the development of Washington, D.C., after it was designated ...

suggested the use of the island as part of the defenses of

New Castle, Delaware New Castle is a city in New Castle County, Delaware, United States. The city is located six miles (10 km) south of Wilmington, Delaware, Wilmington and is situated on the Delaware River. As of 2020, the city's population was 5,551. New Cast ...

and

. During the War of 1812, a

seawall A seawall (or sea wall) is a form of coastal defense constructed where the sea, and associated coastal processes, impact directly upon the landforms of the coast. The purpose of a seawall is to protect areas of human habitation, conservation, ...

and dykes were built on the island, with a view to building a

martello tower Martello towers are small defensive forts that were built across the British Empire during the 19th century, from the time of the French Revolutionary Wars onwards. Most were coastal forts. They stand up to high (with two floors) and typica ...

there.Dobbs, Kelli W., Rebecca J. Siders. ''Fort Delaware Architectural Research Project.'' Newark, DE: University of Delaware, Center for Historic Architecture and Design, 1999. By 1814, the island had grown sufficiently large for the construction of

. A five-pointed wooden

star fort A bastion fort or ''trace italienne'' (a phrase derived from non-standard French, meaning 'Italian outline') is a fortification in a style developed during the early modern period in response to the ascendancy of gunpowder weapons such as c ...

was built 1815–1824. However, this fort was wrecked by a fire in 1831. Construction began on a much larger

polygonal fort A polygonal fort is a type of fortification originating in France in the late 18th century and fully developed in Germany in the first half of the 19th century. Unlike earlier forts, polygonal forts had no bastions, which had proved to be vulnerab ...

in 1836, but this project was derailed by a decade-long legal battle over which state owned the island, which was won by Delaware. Construction then began in 1848 on the current fort, with an irregular pentagon design about the size of the previous star fort. The current brick and concrete fort was substantially complete by 1860. During the

, Fort Delaware was used by the Union as a camp for

Confederate A confederation (also known as a confederacy or league) is a political union of sovereign states united for purposes of common action. Usually created by a treaty, confederations of states tend to be established for dealing with critical issu ...

prisoners, in particular those captured in 1863 at the

Battle of Gettysburg The Battle of Gettysburg () was a three-day battle in the American Civil War, which was fought between the Union and Confederate armies between July 1 and July 3, 1863, in and around Gettysburg, Pennsylvania. The battle, won by the Union, ...

. Many of the prisoners who died at the fort are buried at nearby Finns Point National Cemetery in

. After the release of the last of the remaining Civil War prisoners, only a small caretaker force was left behind at Fort Delaware, and it was largely abandoned in 1870. By 1898, rising tensions between

Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...

and the United States led to Fort Delaware once again serving as a potential frontline in protecting the ports of the Delaware River. The

United States Congress The United States Congress is the legislature, legislative branch of the federal government of the United States. It is a Bicameralism, bicameral legislature, including a Lower house, lower body, the United States House of Representatives, ...

authorized the installation of three guns at the south end of Pea Patch Island as part of the Endicott program, with batteries for smaller guns elsewhere on the island.. The guns were installed in 1898, at the time of the

Spanish–American War The Spanish–American War (April 21 – August 13, 1898) was fought between Restoration (Spain), Spain and the United States in 1898. It began with the sinking of the USS Maine (1889), USS ''Maine'' in Havana Harbor in Cuba, and resulted in the ...

. On the shores flanking the island,

Fort DuPont Fort DuPont, named in honor of Rear Admiral Samuel Francis Du Pont, is located between the original Delaware City and the modern Chesapeake and Delaware Canal on the original Reeden Point tract, which was granted to Henry Ward in 1675. Along ...

and Fort Mott were built with modern weapons, and preparations were made to lay underwater minefields in the river. A

garrison A garrison is any body of troops stationed in a particular location, originally to guard it. The term now often applies to certain facilities that constitute a military base or fortified military headquarters. A garrison is usually in a city ...

was once again in place at Fort Delaware until 1903, when another small caretaker force was left. The fort was garrisoned once again in 1917, following the United States entry into World War I, but most troops left in 1919. Fort Delaware was manned again during World War II following the December 7, 1941 Attack of Pearl Harbor. The defenses around Pea Patch Island were disarmed during World War II, as Fort Miles at the mouth of the Delaware

estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime enviro ...

superseded them.Harbor Defenses of the Delaware at CDSG.org
/ref> The guns were removed in 1943, the fort was abandoned in 1944, and it was declared "surplus property" in 1945. In the early 20th century, the

U.S. Army Corps of Engineers The United States Army Corps of Engineers (USACE) is the military engineering branch of the United States Army. A direct reporting unit (DRU), it has three primary mission areas: Engineer Regiment, military construction, and civil wor ...

dredged a channel around the island, using the infill to double the island's size on its northern end. Ownership of Pea Patch Island and Fort Delaware was transferred to the state of Delaware in 1947. Fort Delaware State Park was opened to the public in 1951.

Historic interpretation

Fort Delaware State Park is a center of historic Civil War interpretation. Reenactors provide a glimpse into the past of Pea Patch Island. Visitors may have the chance to watch a

blacksmith A blacksmith is a metalsmith who creates objects primarily from wrought iron or steel, but sometimes from #Other metals, other metals, by forging the metal, using tools to hammer, bend, and cut (cf. tinsmith). Blacksmiths produce objects such ...

at work, take part in the firing of a

gunpowder Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, charcoal (which is mostly carbon), and potassium nitrate, potassium ni ...

charge of an

Columbiad The columbiad was a large-caliber, smoothbore, muzzle-loading cannon able to fire heavy projectiles at both high and low trajectory, trajectories. This feature enabled the columbiad to fire solid Round shot, shot or Shell (projectile), shell to ...

gun or assist a laundress at work. A group of reenactors pays special attention to Captain George Ahl and his band of former confederate soldiers who formed the 1st Delaware Heavy Artillery. Captain Ahl obtained permission from the War Department to form a battery of Confederate prisoners who could prove they had been

conscript Conscription, also known as the draft in the United States and Israel, is the practice in which the compulsory enlistment in a national service, mainly a military service, is enforced by law. Conscription dates back to antiquity and it contin ...

ed into the Confederate Army. Upon taking an oath of allegiance they were permitted to join the Federal Army. Volunteers have recreated Ahl's Battery at Fort Delaware State Park. They have assumed the identities of members of the battery. The reenactors give demonstrations of what life was like for the members of the 1st Delaware Heavy Artillery. The Fort Delaware Society is a non-profit group dedicated to the preservation and historical interpretation of Fort Delaware.

Wildlife

Fort Delaware State Park is home to a

migratory bird Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Migration is inherently risky, due to predation and mortality. Th ...

rookery A rookery is a colony of breeding rooks, and more broadly a colony of several types of breeding animals, generally gregarious birds. Coming from the nesting habits of rooks, the term is used for corvids and the breeding grounds of colony-fo ...

, considered to be the largest heronry north of

Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...

Ornithologist Ornithology, from Ancient Greek ὄρνις (''órnis''), meaning "bird", and -logy from λόγος (''lógos''), meaning "study", is a branch of zoology dedicated to the study of birds. Several aspects of ornithology differ from related discip ...

s believe that

ibis The ibis () (collective plural ibises; classical plurals ibides and ibes) are a group of long-legged wading birds in the family Threskiornithidae that inhabit wetlands, forests and plains. "Ibis" derives from the Latin and Ancient Greek word f ...

es,

egret Egrets ( ) are herons, generally long-legged wading birds, that have white or buff plumage, developing fine plumes (usually milky white) during the breeding season. Egrets are not a biologically distinct group from herons and have the same build ...

s, and

s began nesting on the northern part of Pea Patch Island in the 1950s or 1960s on land that was deposited there by the

United States Army Corps of Engineers The United States Army Corps of Engineers (USACE) is the military engineering branch of the United States Army. A direct reporting unit (DRU), it has three primary mission areas: Engineer Regiment, military construction, and civil wo ...

in the early 1900s. The population of birds at Fort Delaware State Park grew from about 2,000 pairs of nesting birds to 12,000 pairs as they were pushed from their nesting areas on the mainland by man. Scientists have become concerned about the decreasing population of birds on Pea Patch Island. The present estimate of nesting pairs stands at 7,000. Studies have shown that nearly half the chicks born at the heronry within the last five years have died before they were old enough to leave their parents care. Other than coastal erosion, scientists have found little at the park to threaten the herons, ibises, and egrets. It is believed that changing land-use in the

and surrounding land has affected the populations. Representatives from local, state and federal governments have teamed together with non-profit wildlife organizations, business, and industry to create a Special Area Management Plan to help change the downward trend in bird populations at Fort Delaware State Park. Since

Beach erosion Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward r ...

affecting Pea Patch Island was recognized as a potential threat to the Fort in 1999, the

erected a

during the winter of 2005-2006.

References

External links

Fort Delaware State Park
Delaware State Parks
Fort Delaware State Park Map
Delaware State Parks
Fort Delaware Sea Wall Photographs, Written Historical and Descriptive Data
— Historic American Engineering Record {{authority control Parks in New Castle County, Delaware State parks of Delaware Museums in New Castle County, Delaware Military and war museums in Delaware Living museums in the United States History museums in Delaware Protected areas established in 1951 1951 establishments in Delaware Parks established in the 1950s Open-air museums in the United States Islands of Delaware Landforms of New Castle County, Delaware Delaware in the American Civil War Protected areas of New Castle County, Delaware Islands of the Delaware River Uninhabited islands of the United States