Time Line and Battle Map
Daybreak Battle starts on the northern end of the battlefield when the Union
1st Corps attacked the Confederate left flank.
9:00 a.m. McClellan’s order was prepared for the 9th Corps to begin
their attack on the Confederate right flank on the southern
end of the battlefield.
9:30 a.m. Union attack on the Sunken Road began.
10:00 a.m. Burnside received attack order and the initial assault on the
Lower (later Burnside) Bridge began with the advance of the
11th Connecticut Infantry. Brig. Gen. Isaac Rodman’s division
plus Col. Hugh Ewing’s Brigade of the Kanawha Division were
sent downstream.
11:00 a.m. Brig. Gen. James Nagle’s Brigade, Sturgis’ Division, attacked
toward the Bridge.
12:00 noon Brig. Gen. Edward Ferrero’s Brigade of Sturgis’ Division began
their assault on the Bridge.
12:30 p.m. Confederate position at the Sunken Road collapses, Union soldier’s
force the defenders from their entrenched position.
1:00 p.m. Ferrero’s Brigade captured the Burnside Bridge and crossed
the Antietam.
1:00 p.m. to 3:00 p.m. The 9th Corps crossed the creek, reorganized, resupplied and prepared for final attack.
3:00 p.m. 9th Corps advance began, moving forward (west) from right
to left.
4:00 p.m. Elements of MGen A.P. Hill’s Confederate Division arrived
from Harpers Ferry after a grueling fifteen mile march and
attacked the Union left flank.
5:30 p.m. Burnside men driven back to the Bridge, remaining on the
west bank as the battle ended.
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