After the battle and to the present day, the question
often surfaces about why General Ambrose Burnside chose to launch his
attack on the Confederates by crossing the Rohrbach Bridge instead of
fording the Antietam Creek elsewhere. He had in fact ordered General
Isaac Peace Rodman, a Quaker General, to ford the creek downstream and
assault the Confederates in flank. However, in front of the
entrenched Georgians who thwarted the blue coats' attempts to cross the bridge, the
banks of the Antietam Creek were steep and wet. If the Federals could
not quickly cross a dry, unobstructed bridge, how much more treacherous
would the slippery inner banks of the Antietam Creek prove, especially
after thousands of wet, slippery feet tried to climb out of the water
while under fire.
Commanding General McClellan would say of the terrain near the Bridge his old friend
was ordered to cross, "The valley of the Antietam at and near this bridge is narrow, with high banks. On the
right of the stream the bank is wooded, and commands the approaches both
to the bridge and the ford. The steep slopes of the bank were lined with
rifle-pits and breastworks of rails and stones. These, together with the
woods, were filled with the enemy's infantry, while their batteries
completely commanded and enfiladed the bridge and ford and their
approaches.
In his official
report, General Burnside described the creek's banks
in similar detail. "The bridge itself is a stone structure of three arches, with stone parapet
above, this parapet to some extent flanking the approach to the bridge at
either end. The valley in which the stream runs is quite narrow, the steep
slope on the right bank approaching quite to the water's edge." He
would add of the dangers encountered, "On the hill side immediately
above the bridge was a strong stone fence, running parallel to the
stream; the turns of the roadway were covered by rifle-pits and
breastworks made of rails and stone, all of which defenses, as well as
the woods which covered the slope, were filled with the enemy's infantry
and sharpshooters. Besides the infantry defenses, batteries were placed
to enfilade the bridge and all its approaches." During a recent visit to
the Antietam National battlefield, a National Park Service Ranger
mentioned that the Antietam was about waste high during the battle.
Crossing at this time under fire would also have risked dampening the
soldiers' gun powder which was wrapped in paper casings along with a
minie ball. [9]
The picture a the top of this page shows the Confederate side of the creek and the
bank as it appears today. The black and white image shows the temporary
graves of soldiers who died during this phase of the battle.