Southwest Reef (Louisiana)
Historical Light List Characteristics
| 1860 | F R. R12. | LHB Light List (US): 335 |
| 1866 | LHB Light List (All Coasts): 345 | |
| 1868 | LHB Light List (All Coasts): 347 | |
| 1870 | F W. W13. Arc illuminated N. 34 W. by N. & E. to N. 80 W. | LHB Light List (All Coasts): 344 |
| 1878 | LHB Light List (All Coasts): 435 | |
| 1879 | LHB Light List (All Coasts): 453 | |
| 1886 | LHB Light List (All Coasts): 585 | |
| 1888 | LHB Light List (All Coasts): 619 | |
| 1893 | F W. W123/4. | LHB Light List (Atlantic): 826 |
| 1898 | LHB Light List (Atlantic): 996 | |
| 1899 | LHB Light List (Atlantic): 1011 | |
| 1905 | LHB Light List (Atlantic): 1228 | |
| 1908 | LHB Light List (Atlantic): 1349 | |
| 1915 | F W. W12. | USLHS Light List (Atlantic): 1903 |
Historical Light List Optics and Structures
| 1860 | 4th | 40 | 49 | N/A | LHB Light List (US): 335 |
| 1866 | LHB Light List (All Coasts): 345 | ||||
| 1868 | LHB Light List (All Coasts): 347 | ||||
| 1870 | Iron screw-pile tower. | LHB Light List (All Coasts): 344 | |||
| 1878 | 60 | 56 | Screw-pile iron tower. Frame building on screw piles, enclosing fog-whistle, is attached to the south side of tower; foundation piles and building painted black. | LHB Light List (All Coasts): 435 | |
| 1879 | Screw-pile iron tower. Frame building on screw piles, enclosing fog-whistle, is attached to the south side of tower; foundation-piles and building painted black. | LHB Light List (All Coasts): 453 | |||
| 1886 | 59 | Black screw-pile structure. Fog-signal building attached to S. side. Stands in 3 feet water. | LHB Light List (All Coasts): 585 | ||
| 1888 | LHB Light List (All Coasts): 619 | ||||
| 1893 | N/A | 541/4 | Black screw-pile structure and pyramidal fog-bell tower. Stands in 3 feet of water. | LHB Light List (Atlantic): 826 | |
| 1898 | Square, pyramidal tower connected to square house, with pyramidal fog-bell tower rising from roof, all black, on screw-pile foundation. In 3 feet of water. | LHB Light List (Atlantic): 996 | |||
| 1899 | LHB Light List (Atlantic): 1011 | ||||
| 1905 | Square, pyramidal tower connected to square house with pyramidal fog-bell tower rising from roof, all black, on screw-pile foundation. In 3 feet of water. | LHB Light List (Atlantic): 1228 | |||
| 1908 | LHB Light List (Atlantic): 1349 | ||||
| 1915 | N/A | 54 | Black; square, pyramidal tower connected to square house with pyramidal fog-bell tower on roof; on piles. In 1/2 fathom. | USLHS Light List (Atlantic): 1903 |
Historical Light List Audible Fog Signals
| 1860 | Bell rung and horn sounded in foggy weather. | None | LHB Light List (US): 335 |
| 1866 | LHB Light List (All Coasts): 345 | ||
| 1868 | LHB Light List (All Coasts): 347 | ||
| 1870 | A bell and horn | LHB Light List (All Coasts): 344 | |
| 1878 | A steam fog-whistle; blasts of 10 seconds at intervals of 30 seconds. | LHB Light List (All Coasts): 435 | |
| 1879 | LHB Light List (All Coasts): 453 | ||
| 1886 | Steam-whistle; blasts 10 sec., interval 30 sec. | LHB Light List (All Coasts): 585 | |
| 1888 | 12-inch steam-whistle; blasts 10 sec., intervals 20 sec. | LHB Light List (All Coasts): 619 | |
| 1893 | Bell struck by machinery every 20 sec. | LHB Light List (Atlantic): 826 | |
| 1898 | LHB Light List (Atlantic): 996 | ||
| 1899 | LHB Light List (Atlantic): 1011 | ||
| 1905 | LHB Light List (Atlantic): 1228 | ||
| 1908 | Bell struck by machinery a single blow every 20 sec. | LHB Light List (Atlantic): 1349 | |
| 1915 | Bell; 1 stroke every 20 sec. | USLHS Light List (Atlantic): 1903 |
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1859 - 1916 (Approximate location.) |