May 17, 1863
Pemberton ordered Bowen's division and a fresh brigade commanded by Brigadier General John Vaughn to hold the bridges across Big Black River long enough for Loring to cross. Unbeknownst to Pemberton, however, Loring was not marching toward the river. Instead, Federal troops appeared early in the morning and prepared to storm the defenses. McClernand's XIII Corps quickly deployed astride the road and artillery opened on the Confederate fortifications with solid shot and shell.
The Confederate line was naturally strong and formed an arc with its left flank resting on Big Black River and the right flank on Gin Lake. A bayou of waist-deep water fronted a portion of the line and 18 cannon were placed to sweep the flat open ground to the east. As both sides prepared for battle, Union troops took advantage of terrain features and Brigadier General Mike Lawler, on the Federal right, deployed his men in a meander scar not far from the Confederate line of defense.
Believing that his men could cover the intervening ground quickly and with little loss, Lawler boldly ordered his troops to fix bayonets and charge. With a mighty cheer the Federals swept across the open ground, through the bayou, and over the parapets. From beginning to end, the charge lasted three minutes.
Overwhelmed by the charge, Confederate soldiers threw down their rifle-muskets and ran toward the bridges across the river. In the panic and confusion of defeat, many Confederate soldiers attempted to swim across the river and drowned. Luckily, Pemberton's chief engineer, Major Sam Lockett, set the bridges on fire effectively cutting off pursuit by the victorious Union army. Badly shaken, the Confederates staggered back into the Vicksburg defenses and prepared to resist the Union onslaught.
Confederate losses at the Big Black River Bridge were not accurately reported, but 1,751 men, 18 cannon, and 5 battleflags were captured by the Federals. Union casualties totaled only 279 men of whom 39 were killed, 237 wounded, and 3 missing. Grant's forces bridged the river at three locations and, flushed with victory, pushed hard toward Vicksburg on May 18.
May 19, 1863
Anxious for a quick victory, Grant made a hasty reconnaissance of the Vicksburg defenses and ordered an assault. Of his three corps, however, only one was in proper position to make the attack--Sherman's corps astride the Graveyard Road northeast of Vicksburg. Early in the morning Union artillery opened fire and bombarded the Confederate works with solid shot and shell.
With lines neatly dressed and their battle flags blowing in the breeze above them, Sherman's troops surged across the fields at 2:00 p.m. and through the abatis (obstructions of felled trees) toward Stockade Redan. Although the men of the 1st Battalion, 13th United States Infantry, planted their colors on the exterior slope of Stockade Redan (a powerful Confederate fort which guarded the road), the attack was repulsed with Federal losses numbering 1,000 men.
Vicksburg Stronghold
May 22, 1863
Undaunted by his failure on the 19th and realizing that he had been too hasty, Grant made a more thorough reconnaissance then ordered another assault. Early on the morning of May 22, Union artillery opened fire and for four hours bombarded the city's defenses. At 10:00 the guns fell silent and Union infantry was thrown forward along a three-mile front. Sherman attacked once again down the Graveyard Road, McPherson in the center along the Jackson Road, and McClernand on the south along the Baldwin Ferry Road and astride the Southern Railroad of Mississippi. Flags of all three corps were planted at different points along the exterior slope of Confederate fortifications. McClernand's men even made a short-lived penetration at Railroad Redoubt. But the Federals were again driven back with a loss in excess of 3,000 men.
May 26 - July 3, 1863
Following the failure of the May 22 assault, Grant realized that Vicksburg could not be taken by storm and decided to lay siege to the city. Slowly his army established a line of works around the beleaguered city and cut Vicksburg off from supply and communications with the outside world. Commencing on May 26, Union forces constructed thirteen approaches along their front aimed at different points along the Confederate defense line. The object was to dig up to the Confederate works then tunnel underneath them, plant charges of black powder, and destroy the fortifications. Union troops would then surge through the breach and gain entrance to Vicksburg.
Throughout the month of June, Union troops advanced their approaches slowly toward the Confederate defenses. Protected by the fire of sharpshooters and artillery, Grant's fatigue parties neared their objectives by late June. Along the Jackson Road, a mine was detonated beneath the Third Louisiana Redan on June 25, and Federal soldiers swarmed into the crater attempting to exploit the breach in the city's defenses. The struggle raged for 26 hours during which time clubbed muskets and bayonets were freely used as the Confederates fought with grim determination to deny their enemy access to Vicksburg. The troops in blue were finally driven back at the point of bayonet and the breach sealed. On July 1, a second mine was detonated but not followed by an infantry assault.
Confederate Lines, Vicksburg, Mississippi, 19 May 1863. In this assault against bitter resistance the 1st Battalion, 13th Infantry, lost forty-three percent of its men, but of the attacking force, it alone fought its color up the steep slope to the top. General Sherman called its performance "unequalled in the Army" and authorized the 13th Infantry to inscribe "First at Vicksburg" on its color. Although it took two more months of hard fighting to capture Vicksburg and split the Confederacy, no episode illustrates better the indomitable spirit of Americans on both sides.
Throughout the weary month of June the gallant defenders of Vicksburg suffered under the constant bombardment of enemy guns from reduced rations and exposure to the elements. Reduced in number by sickness and battle casualties, the garrison of Vicksburg was spread dangerously thin. Soldiers and citizens alike began to despair that relief would ever come. At Jackson and Canton General Johnston gathered a relief force which took up the line of march toward Vicksburg on July 1. By then it was too late as the sands of time had expired for the fortress city on the Mississippi River.
July 4, 1863
On the hot afternoon of July 3, 1863, a cavalcade of horsemen in gray rode out from the city along the Jackson Road. Soon white flags appeared on the city's defenses as General Pemberton rode beyond the works to meet with his adversary--Grant. The two generals dismounted between the lines, not far from the Third Louisiana Redan, and sat in the shade of a stunted oak tree to discuss surrender terms. Unable to reach an agreement, the two men returned to their respective headquarters. Grant told Pemberton he would have his final terms by 10 p.m. True to his word, Grant sent his final amended terms to Pemberton that night. Instead of an unconditional surrender of the city and garrison, Grant offered parole to the valiant defenders of Vicksburg. Pemberton and his generals agreed that these were the best terms that could be had, and in the quiet of his headquarters on Crawford Street, the decision was made to surrender the city.
At 10 a.m., on July 4, white flags were again displayed from the Confederate works and the brave men in gray marched out of their entrenchments, stacked their arms, removed their accouterments, and furled their flags, at which time the victorious Union army marched in and took possession of the city.
When informed of the fall of Vicksburg, President Lincoln exclaimed, "The Father of Waters again goes unvexed to the sea."
The fall of Vicksburg, coupled with the defeat of Confederate General Robert E. Lee in the battle of Gettysburg fought on July 1-3, marked the turning point of the Civil War.
Additional Sources:
www.americancivilwar.com
www.civilwarprints.com
www.army.mil
www.battleofchampionhill.org
www.swcivilwar.com