Fort Mott, New Jersey — History & Visitor Guide

Fort Mott (Pennsville Township, Salem County, New Jersey)

Pennsville Township, Salem County · New Jersey · Spanish American War, World War I

Quick BriefFort Mott was part of the Harbor Defenses of the Delaware, a three-fort defense system designed for the Delaware River during the Reconstruction era and Endicott program modernization in the 1890s. The fortifications seen today were constructed in the late 1890s and guarded the Delaware River throughout the Spanish American War and World War I. The fort was officially designated on December 16, 1897, in honor of Major General Gershom Mott, of Trenton. In 1947, the State of New Jersey purchased Fort Mott as a historic site and opened it to the public on June 24, 1951.

Endicott SystemCoastal defenseOpen to visitors

History & Significance

The land was purchased by the United States government in the 1830s as part of a three-fort plan to protect growing industries and shipping along the Delaware River. Construction began in 1872, but only two gun emplacements and two magazines were completed by 1876 when work stopped due to lack of funding.

In 1885, President Grover Cleveland appointed the Endicott board to study existing coastal defenses and develop a comprehensive coastal defense plan for the United States. Construction of new fortifications began in 1896.

Unusually for US coast defense forts built 1895–1935, Fort Mott was designed to resist a land attack, with a parados and moat placed behind the gun batteries; its four 5-inch guns were in mounts permitting 360° of fire and were sited to fire on attackers flanking the parados. The main armament was Battery Arnold with three 12-inch guns and Battery Harker with three 10-inch guns.

Troops were regularly stationed at Fort Mott from 1897 to 1922; with the construction of Fort Saulsbury near Milford, Delaware shortly before World War I, the technology at Fort Mott was deemed obsolete. From 1922 to 1943 the federal government maintained a caretaking detachment; Fort Mott was declared "surplus property" in 1943.

🧳 Visiting

What you’ll see when you visit:

Disappearing-carriage artillery (12-inch and 10-inch guns) from Spanish American War era
Distinctive parados and moat designed to resist land attacks
Coastal defense fortification overlooking Delaware River
State park setting with public access
Well-preserved early 1900s military architecture

Best time to visitSpring (April-May) and fall (September-October) offer mild weather; summers can be humid and winters cool, but the site is open year-round.

Getting thereThe nearest major airport is Philadelphia International (PHL), approximately 30 miles west of Pennsville Township in southeastern New Jersey.

Fort Mott (Pennsville Township, Salem County, New Jersey)

History & Significance

Key Facts

🧳 Visiting

Sources

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