Damage From Naval Bombardments
The largest naval guns used against land fortifications were fired on fort McAllister in 1863 from monitor-type Union ironclads. 15 in. shells penetrated 17 feet of sand, digging craters 89 ft. in diameter and 7 ft. deep on exploding, but all damage could be repaired overnight.
Marker is on Fort McAllister Road.
Courtesy hmdb.org
