In 1862 the Lighthouse Board reported “Charleston, lens and lantern destroyed.” In all, 164 lights were forcibly discontinued during the Civil War on the southern coasts. These were relighted from time to time, and by 1866, the greater part had been restored. The Charleston Channel was re-marked promptly on the occupation of the city by Union troops in February 1865.
In 1865 the Lighthouse Board reported “that an almost total change had taken place, leaving no channel in the harbor as it was in 1860, and opening new ones.” Under this altered state of things it became necessary to establish lights temporarily at such places as would be useful guides through existing channels and omit all other.
On March 3, 1873, Congress made the first of three appropriations for a new lighthouse on Morris Island. $60,000 was granted on that date for “commencing the rebuilding of a first-order seacoast light on Morris Island destroyed during the war.” Two other appropriations totaling $90,000 in 1874 and 1875 were for completing the work. The new structure was to be at or near the same spot as the old tower, 150 feet high and built of brick, with a first-order flashing light. Foundation piles were driven and the space between them filled with concrete 8 feet thick. The new tower, when completed in 1876, was 161 feet in height and the cost was $149,993.50. A first-order Fresnel lens was installed. In 1884 the illuminating apparatus was changed for the use of mineral oil instead of lard oil.
The cyclone of August 25, 1885, destroyed the rear beacon of the Morris Island range, overturned part of the brick wall which enclosed the tower and dwelling of the main light, carried away the bridge between the beacons, and destroyed a large part of the plank walks connecting the several lights and dwellings, and overturned the boathouse. The range was reestablished 3 days later by a temporary beacon. A new wooden skeleton structure 40 feet high was built in 1885.
The earthquake of August 1886 threw the lens of the main light out of position and cracked the tower extensively in two places, but not so as to endanger its stability. The lens was replaced and the cracks repaired without delay.
Erosion of land caused the Coast Guard to begin construction of a new lighthouse in 1960. The new light was commissioned on June 15, 1962. The tower stands 163 feet high on the north side of Charleston Harbor entrance on Sullivans Island. [(1)] [(2)] [(7)]
TEXAS
POINT ISABEL LIGHTHOUSE
When Fort Polk was abandoned, after the Mexican War, the site was transferred to the Treasury Department and on September 28, 1850, Congress appropriated $15,000 “for a lighthouse and beacon light at Brazos, Santiago.” The tower was completed in 1852 and was lit by four lamps, 57 feet above the ground and 82 feet above sea level. By 1854 the light had 15 lamps and 21 reflectors and was visible 16 miles. A third-order lens was installed in 1857, and the fixed light was varied by flashes.
At the conclusion of the Civil War, when the southern portion of Texas was occupied by Union forces, the light station was overhauled, refitted, and relit February 22, 1866.
In 1879 the Lighthouse Board reported the tower in a dilapidated condition. During a rain it was impossible to keep the lens and lamps dry as the lantern leaked “in every direction.” By 1881 a new iron lantern had been erected on the tower and the following year mineral oil lamps were fitted.