On Hutchinson's Island
was an earthwork mounting three 32-pounder guns.
The armament of Fort Jackson
consisted of two 8-inch columbiads, two 32-pounder rifle guns and three 32-pounder naval guns.
The other batteries for the defense of the Savannah river
proper were Cheves
and Fort Boggs.
Three 32-pounder guns and two 10-inch columbiads constituted the armament of Battery Cheves.
That of Battery Lawton was stronger, consisting of one 32 pounder rifle gun, one 42-pounder smooth bore, two 8-inch and two 10-inch columbiad guns.
The most powerful work on the Savannah river
was Battery Lee, which mounted two 10-inch mortars, two 10-inch and three 8-inch columbiads, one 42 and one 32-pounder gun and two 24-pounder howitzers.
Fort Bartow, commanding St. Augustine creek
, not far from its confluence with the Savannah river
, was a substantially constructed, enclosed earthwork, mounting sixteen guns, to-wit: one 10-inch columbiad, two 8-inch naval shell guns, two 8-inch columbiads, two 24-pounder rifle guns, one 12-pounder rifle gun, two 8-pounder and two 6-pounder smooth bore guns, three 3-inch rifle guns, and one boat howitzer.
The water battery at Causton's Bluff, in advance of Fort Bartow, was armed with two 32-pounder smooth bore guns.
For the protection of the approaches by way of Whitemarsh Island
a battery was located at Turner's Point
mounting three 10-inch columbiads, one 20-pounder Parrott gun, and two 12-pounder howitzers; and another at Gibson's Point, which was armed with two 8-inch siege howitzers and two 32-pounder guns.
Across the island was thrown up a substantial line of field works, mounting seven 32-pounder guns, one 4.62 inch and one 3-inch rifle gun. Near the head of the causeway leading to Causton's Bluff were located some lunettes and angles for field pieces.
was a battery of three 32-pounder guns.
At Thunderbolt was a succession of well traversed earthworks, mounting one 10-inch columbiad, two 8-inch columbiads, two 8-inch shell guns, one 42-pounder rifle, one 42-pounder smooth bore, and six 32-pounder guns.
The batteries on the Isle of Hope
were distributed as follows: At Grimball's Point a small work armed with one 32-pounder; at Grimball's House another, mounting two guns of like calibre, and at the Church
Lot a more formidable work mounting two 8-inch columbiads and two 32-pounder guns.