Template:3InchM1898Guns
| Post | Battery | Emp. | Gun | GSN | Mount | MSN | Start | Stop | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Fort Delaware | Battery Alburtis | 1 | M1898MI | 22 | M1898 | 22 | 1901 | 1920 | |
| Fort Delaware | Battery Alburtis | 2 | M1898MI | 24 | M1898 | 24 | 1901 | 1920 | |
| Fort Delaware | Battery Allen | 1 | M1898MI | 18 | M1898 | 18 | 1901 | 1920 | |
| Fort Delaware | Battery Allen | 2 | M1898MI | 21 | M1898 | 21 | 1901 | 1920 | |
| Fort Taylor (2) | Battery Adair | 1 | M1898MI | 120 | M1898 | 120 | 1904 | 1920 | |
| Fort Taylor (2) | Battery Adair | 2 | M1898MI | 42 | M1898 | 42 | 1904 | 1920 | |
| Fort Taylor (2) | Battery Adair | 3 | M1898MI | 43 | M1898 | 43 | 1904 | 1920 | |
| Fort Taylor (2) | Battery Adair | 4 | M1898MI | 44 | M1898 | 44 | 1904 | 1920 | |
| Fort Taylor (2) | Battery Dilworth | 1 | M1898MI | 39 | M1898 | 39 | 1901 | 1920 | |
| Fort Taylor (2) | Battery Dilworth | 2 | M1898MI | 41 | M1898 | 41 | 1901 | 1920 | |
| Fort Carroll | Battery Augustin | 1 | M1898MI | 17 | M1898 | 17 | 1900 | 1920 | |
| Fort Carroll | Battery Augustin | 2 | M1898MI | 16 | M1898 | 16 | 1900 | 1920 | |
| Fort Wadsworth (1) | Battery Bacon | 1 | M1898MI | 91 | M1898 | 91 | 1903 | 1918 | |
| Fort Wadsworth (1) | Battery Bacon | 2 | M1898MI | 94 | M1898 | 94 | 1903 | 1918 | |
| Fort Totten (3) | Battery Baker | 3 | M1898MI | 29 | M1898 | 29 | 1900 | 1920 | |
| Fort Totten (3) | Battery Baker | 4 | M1898MI | 28 | M1898 | 28 | 1900 | 1920 | |
| Fort Strong (2) | Battery Basinger | 1 | M1898MI | 36 | M1898 | 36 | 1901 | 1920 | |
| Fort Strong (2) | Battery Basinger | 2 | M1898MI | 34 | M1898 | 34 | 1901 | 1920 | |
| Fort Winfield Scott (2) | Battery Baldwin | 1 | M1898MI | 73 | M1898 | 73 | 1903 | 1920 | |
| Fort Winfield Scott (2) | Battery Baldwin | 2 | M1898MI | 74 | M1898 | 74 | 1903 | 1920 | |
| Fort Winfield Scott (2) | Battery Blaney | 1 | M1898MI | 75 | M1898 | 75 | 1907 | 1920 | |
| Fort Winfield Scott (2) | Battery Blaney | 2 | M1898MI | 23 | M1898 | 23 | 1907 | 1920 | |
| Fort Winfield Scott (2) | Battery Blaney | 3 | M1898MI | 12 | M1898 | 12 | 1907 | 1920 | |
| Fort Winfield Scott (2) | Battery Blaney | 4 | M1898MI | 95 | M1898 | 95 | 1907 | 1920 | |
| Fort De Soto | Battery Bigelow | 1 | M1898MI | 65 | M1898 | 65 | 1904 | 1920 | |
| Fort De Soto | Battery Bigelow | 2 | M1898MI | 66 | M1898 | 66 | 1904 | 1920 | |
| Fort St. Philip | Battery Brooke | 1 | M1898MI | 76 | M1898 | 76 | 1904 | 1920 | |
| Fort St. Philip | Battery Brooke | 2 | M1898MI | 77 | M1898 | 77 | 1904 | 1920 | |
| Fort St. Philip | Battery Scott | 1 | M1898MI | 57 | M1898 | 57 | 1904 | 1920 | |
| Fort St. Philip | Battery Scott | 2 | M1898MI | 58 | M1898 | 58 | 1904 | 1920 | |
| Fort McRee | Battery Center | 1 | M1898MI | 10 | M1898 | 10 | 1901 | 1920 | |
| Fort McRee | Battery Center | 2 | M1898MI | 11 | M1898 | 11 | 1901 | 1920 | |
| Fort McRee | Battery Center | 3 | M1898MI | 20 | M1898 | 20 | 1901 | 1920 | |
| Fort McRee | Battery Center | 4 | M1898MI | 25 | M1898 | 25 | 1901 | 1920 | |
| Fort Howard (1) | Battery Clagett | 1 | M1898MI | 68 | M1898 | 68 | 1904 | 1920 | |
| Fort Howard (1) | Battery Clagett | 2 | M1898MI | 7 | M1898 | 50 | 1904 | 1920 | |
| Fort Howard (1) | Battery Lazear | 1 | M1898MI | 78 | M1898 | 78 | 1904 | 1920 | |
| Fort Howard (1) | Battery Lazear | 2 | M1898MI | 67 | M1898 | 67 | 1904 | 1920 | |
| Fort Wetherill | Battery Cooke | 1 | M1898MI | 54 | M1898 | 54 | 1901 | 1920 | |
| Fort Wetherill | Battery Cooke | 1 | M1898MI | 56 | M1898 | 56 | 1901 | 1920 | |
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