Background:
Following the Battle of Hampton Roads, March 8-9 1862,
the ironclad CSS Virginia (ex-USS
Merrimack) guarded the James River, the maritime
highway leading 100 miles inland to the sea port of Richmond.
When the Confederates later retreated from Hampton Roads, beginning May 3, 1862, the
Virginia drafted too low to follow—so
she was destroyed, leaving the James an open invitation. A U.S. Navy fleet
dashed toward Richmond but was stopped some 7 miles short of the city, where Confederates
scuttled ships under the guns of
Drewry’s Bluff.
After 1862, the James remained relatively calm until May 1864, when
Lt. Gen. Ulysses
S. Grant sent one army marching south to Richmond, while Union
Maj. Gen. Benjamin F. Butler
ascended the James to City Point and Bermuda Hundred, creating a
deepwater base less than 15 miles south of the Confederate
capital of Richmond. To protect the Union's base, Butler bottled
up Richmond’s fleet by blocking the river on his front line at Trent’s Reach.
The Union army fighting north of Richmond endured some of its
worst defeats, capped by Cold Harbor (May 31-June 12, 1864).
Consequently, Grant
swung away from Richmond, crossed the James, and shifted his
base to City Point.
Map by Dominic Bascone, DHR