Star Forts in America dates built?

This list provides an approximate timeline for the construction or completion of the star forts.




Fort Anahuac: Anahuac, Texas - Built in the early 1830s.
Fort Aransas: Aransas Pass, Texas - Construction began in the mid-19th century.
Fort Barrancas: Pensacola, Florida - Built in the 1830s.
Fort Caroline: Jacksonville, Florida - Built in 1564 by the French, but it was not in existence for long.
Fort Carroll: Baltimore, Maryland - Construction started in 1847 but was never completed.
Fort Caswell: Oak Island, North Carolina - Built in the 1830s and later used during the Civil War.
Fort Christiansted: Christiansted, St. Croix, US Virgin Islands - Built between 1738 and 1749.
Fort Clinch: Amelia Island, Florida - Construction began in the 1840s.
Fort Constitution: New Castle, New Hampshire - Originally built in 1791 and expanded in the early 19th century.
Fort Crown Point: Crown Point, New York - The original wooden fort was constructed in 1759, and the stone fort (now in ruins) followed in the 1770s.
Fort Curtis: Helena, Arkansas - Built during the Civil War in 1862.
Fort Delaware: Pea Patch Island, Delaware - Construction started in the 1840s.
Fort Dorchester: Summerville, South Carolina - Constructed in the 1770s.
Fort Duquesne: Pittsburgh, Pennsylvania - Originally built by the French in the mid-18th century.
Fort Fisher: Petersburg, Virginia - Notable during the Civil War, but its construction began in the mid-19th century.
Fort Frederick: Big Pool, Maryland - Built in the mid-18th century.
Fort Gadsden: Wewahitchka, Florida - Construction began in 1814.
Fort Gaines: Mobile, Alabama - Construction started in 1821.
Fort Gorges: Hog Island Ledge, Portland, Maine - Construction began in 1858 but was never fully completed.
Fort Griswold: Groton, Connecticut - Constructed in the late 18th century.
Fort Jackson: Plaquemines Parish, Louisiana - Construction started in the 1820s.
Fort Jackson: Wetumpka, Alabama - Construction began in 1814.
Fort James Jackson: Savannah, Georgia - Completed in 1812.
Fort Jefferson: Dry Tortugas, Florida - Construction began in 1846 but was never fully finished.
Fort Knox: Prospect, Maine - Built in the mid-19th century.
Fort Ligonier: Ligonier, Pennsylvania - Constructed in the mid-18th century.
Fort Livingston: Isle Grand Terre, Louisiana - Built in the 1830s.
Fort Macomb: New Orleans, Louisiana - Construction began in the 1820s.
Fort Macon: Atlantic Beach, North Carolina - Completed in 1834.
Fort Massac: Metropolis, Illinois - Built in the late 18th century.
Fort McHenry: Baltimore, Maryland - Construction began in 1798.
Fort McClary: Kittery Point, Maine - Originally built in the early 19th century.
Fort Meigs: Perrysburg, Ohio - Built during the War of 1812.
Fort Mifflin: Philadelphia, Pennsylvania - Originally constructed in the late 18th century.
Fort Massachusetts: Ship Island, Gulfport, Mississippi - Built in the early 19th century.
Fort Monroe: Hampton, Virginia - Construction started in 1819.
Fort Montgomery: Rouses Point, New York - Built in the mid-19th century.
Fort Morgan: Mobile, Alabama - Construction started in 1819.
Fort Moultrie: Charleston, South Carolina - Originally constructed in the late 18th century.
Fort Negley: Nashville, Tennessee - Built during the Civil War in 1862.
Fort Ninety Six: Ninety Six, South Carolina - Construction began in the 1750s.
Fort Norfolk: Norfolk, Virginia - Originally constructed in the late 18th century.
Fort Ontario: Oswego, New York - Built in the 1750s and later expanded.
Fort Pickens: Pensacola, Florida - Construction began in the 1820s.
Fort Pike: New Orleans, Louisiana - Built in the 1820s.
Fort Point: San Francisco, California - Construction started in 1853.
Fort Popham: Phippsburg, Maine - Built in the 1860s.
Fort Preble: Portland, Maine - Originally constructed in the early 19th century.
Fort Pulaski: Cockspur Island, Georgia - Construction started in the 1820s.
Fort Putnam: West Point, New York - Built during the Revolutionary War.
Fort Richmond: Staten Island, New York - Originally constructed in the 19th century.
Fort Roberdeau: Altoona, Pennsylvania - Built during the Revolutionary War.
Russian Fort Elizabeth: Kauai, Hawaii - Constructed in 1817.
Fort St. Frédéric: Crown Point, New York - Built in the early 18th century.
Castillo de San Marcos: St. Augustine, Florida - Construction began in the late 17th century.
Fort Scammell: House Island, Portland, Maine - Constructed in the mid-19th century.
Fort Schuyler: Throgg's Neck, New York - Built in the mid-19th century.
Fort Snelling: St. Paul, Minnesota - Constructed in the 1820s.
Fort Stanwix: Rome, New York - Originally built in the 18th century.
Fort Stevens: Astoria, Oregon - Constructed during the Civil War in the 1860s.
Fort Sumter: Charleston, South Carolina - Construction began in the 1820s.
Fort Ticonderoga: Ticonderoga, New York - Originally built in the 18th century.
Fort Tompkins: Staten Island, New York - Originally constructed in the early 19th century.
Fort Toulouse: Wetumpka, Alabama - Built in the 18th century.
Fort Trumbull: New London, Connecticut - Originally constructed in the 19th century.
Fort Union: Watrous, New Mexico - Built in the mid-19th century.
Fort Warren: Boston Harbor, Massachusetts - Construction started in the 1830s and completed in the 1850s.
Fort Washington: Fort Washington, Maryland - Built in the early 19th century.
The Defenses of Washington, DC - A system of fortifications built during the Civil War in the 1860s.
Fort Wayne: Detroit, Michigan - Construction started in 1842.
Fort William Henry: Lake George, New York - Originally built in the mid-18th century and later reconstructed.
Fort Zachary Taylor: Key West, Florida - Construction began in the mid-19th century.


Here is a list of the star forts from the previous list that share the same approximate year of construction:

1. Fort Anahuac: Anahuac, Texas - Built in the early 1830s.
2. Fort Barrancas: Pensacola, Florida - Built in the 1830s.
3. Fort Caswell: Oak Island, North Carolina - Built in the 1830s.
4. Fort Gaines: Mobile, Alabama - Construction started in 1821.
5. Fort Jackson: Plaquemines Parish, Louisiana - Construction started in the 1820s.
6. Fort Livingston: Isle Grand Terre, Louisiana - Built in the 1830s.
7. Fort Macomb: New Orleans, Louisiana - Construction began in the 1820s.
8. Fort Macon: Atlantic Beach, North Carolina - Completed in 1834.
9. Fort Pulaski: Cockspur Island, Georgia - Construction started in the 1820s.
10. Fort Fisher: Petersburg, Virginia - Notable during the Civil War, but its construction began in the mid-19th century.
11. Fort Jefferson: Dry Tortugas, Florida - Construction began in 1846 but was never fully finished.

Of the star forts mentioned, one of the largest and most significant is Fort Jefferson in Dry Tortugas, Florida. Fort Jefferson is often regarded as one of the largest masonry forts in the United States and is sometimes referred to as the "Gibraltar of the Gulf." It was designed as a coastal defense and served as a military prison during the Civil War.

The fort covers an area of about 16 acres and is made up of over 16 million bricks. Its massive walls and distinctive hexagonal shape make it an impressive structure. Fort Jefferson's size and remote location on Garden Key in the Dry Tortugas National Park in the Gulf of Mexico contribute to its historical and architectural significance.




Estimating the time it would take to produce over 16 million bricks for a massive fort like Fort Jefferson involves several variables and assumptions. Keep in mind that this is a rough estimate, and actual conditions during the 19th century could vary widely. Here's a simplified estimate:

Brick Production Rate: An experienced brick-maker could produce approximately 1,000 to 2,000 bricks per day, depending on the specific methods and tools used.


Workdays: Assuming an average production rate of 1,500 bricks per day, it would take one person roughly 10,667 workdays (assuming 300 workdays in a year) to make 16 million bricks.


Labor Force: Fort construction projects typically involved a substantial labor force, including skilled and unskilled laborers. The number of brick-makers employed would depend on the scale of the project. Let's assume a team of 50 skilled brick-makers.


Parallel Production: Brick-making would likely occur in parallel with other construction activities. Multiple kilns and brick-making sites might be used to increase efficiency.

Based on these rough estimates, if a team of 50 skilled brick-makers worked continuously, it might take around 214 years to produce 16 million bricks (10,667 workdays per person x 50 people). However, it's important to note that actual production rates, workdays, and workforce sizes could have varied, and historical records may not provide precise details on brick-making for Fort Jefferson. Additionally, interruptions due to factors like weather, resource availability, and logistical challenges could impact the timeline.

This estimate serves as a simplified approximation and should not be taken as an accurate reflection of historical conditions. The construction of Fort Jefferson was a complex and lengthy process, and the actual timeline would have involved numerous factors and variables.



In 1846, the population of Dry Tortugas, Florida, centered around Fort Jefferson, would likely have consisted of a few hundred people. Fort Jefferson was a remote military installation, and its population would have included soldiers, officers, and support staff.

The precise number of residents would have varied over time due to military rotations, construction projects, and other factors. However, it's estimated that the population of Fort Jefferson could range from several hundred to a thousand individuals during that period, with fluctuations based on military operations and maintenance needs.

So, if 70,000 men worked 12 hours a day, 365 days a year, it would take approximately 19.05 years to produce 16 million bricks at a rate of 840,000 bricks per worker per year.