Overview
The Battle of Beaver Dam Creek was fought on June 26, 1862, during the Peninsula Campaign and the Seven Days Battles. Union General George B. McClellan had transported the Army of the Potomac to the Virginia Peninsula and advanced toward Richmond, Virginia. After the Battle of Seven Pines (May 31–June 1, 1862), Robert E. Lee took command of the Army of Northern Virginia when Joseph E. Johnston suffered a serious wound. McClellan then delayed further attacks while preparing for a siege, giving Lee time to reorganize his forces and prepare an offensive.
Lee planned to attack Fitz John Porter’s 5th Corps, which stood north of the Chickahominy River and apart from most of McClellan’s army. Lee hoped to defeat Porter and cut the Union supply line along the Richmond and York River Railroad. His plan depended on coordinated attacks by “Stonewall” Jackson and A.P. Hill.
Jackson was supposed to turn Porter’s right flank while Hill crossed the Chickahominy River, captured Mechanicsville, and attacked Union positions behind Beaver Dam Creek. However, Jackson’s exhausted troops failed to arrive on schedule. At about 3:00 p.m., Hill attacked without Jackson’s support.
Union troops withdrew from Mechanicsville to strong defensive positions near Ellerson’s Mill. There, Porter’s soldiers, supported by heavy artillery, pushed back repeated Confederate attacks and inflicted heavy casualties on them. Jackson reached the area around 5:00 but ordered his troops to camp for the night. Hill launched another unsuccessful attack at dusk.
The battle ended as a clear tactical Union victory. However, McClellan overestimated Lee’s strength and ordered Porter to withdraw toward Gaines’ Mill. He also moved his supply line to the James River, abandoning the railroad Lee had tried unsuccessfully to cut. These decisions gave Lee an important strategic advantage and contributed to the Union retreat during the Seven Days Battles.
Essential Facts
- Also Known As: Battle of Mechanicsville, Battle of Ellerson’s Mill.
- Date: June 26, 1862.
- Location: Henrico County, Virginia, near Richmond.
- Participants: The United States of America (USA) and the Confederate States of America (CSA).
- USA Commanders: George B. McClellan, Fitz John Porter.
- CSA Commanders: Robert E. Lee, A.P. Hill.
- Who Won: The United States won the Battle of Beaver Dam Creek.
- Campaign:
- Era: Civil War, January–June, 1862.
Statistics
United States of America
- Casualties: Fewer than 400 soldiers.
- Forces Engaged: Army of the Potomac.
- Troop Strength: Roughly 15,000.
Confederate States of America
- Casualties: 1,400 soldiers.
- Forces Engaged: Army of Northern Virginia.
- Troop Strength: Roughly 16,000.
Significance
The Battle of Beaver Dam Creek is important to American History because it marked Robert E. Lee’s first battle as commander of the Army of Northern Virginia and helped shape the Seven Days Battles. Although Lee’s poorly coordinated attack failed and Union forces inflicted heavy Confederate casualties, George B. McClellan did not take advantage of the victory. Instead, he ordered Fitz John Porter to abandon his strong defensive position and moved his supply line to the James River. These decisions gave Lee a strategic advantage and started a pattern of Union withdrawals that eventually carried the Army of the Potomac back to the James River.
History
On March 17, 1862, Union General George B. McClellan launched his Peninsula Campaign. After transporting the Army of the Potomac by ships to the Virginia peninsula between the York and James Rivers, McClellan planned to advance on Richmond and bring the American Civil War to a quick conclusion. By late May, the Federals had fought their way to the outskirts of the Confederate capital.
Battle of Seven Pines
On May 31, Confederate General Joseph E. Johnston struck back at the Battle of Seven Pines. Two days of hard fighting rendered a tactical draw and high casualties on both sides. The aftermath of the engagement, however, produced two important strategic developments. First, Robert E. Lee assumed command of the Army of Northern Virginia after Johnston suffered a severe wound during the fighting. Second, the high casualty rate convinced McClellan to target Richmond rather than risk costly assaults against the Confederate defenses around the capital.
Reprieve for Lee
For nearly a month, McClellan sat idly, developing plans for a siege. The unexpected reprieve presented Lee with an opportunity to organize his command and to plan an offensive designed to drive the Union army away from Richmond. Toward the end of June, McClellan developed a renewed sense of urgency when he learned that Major General Stonewall Jackson was moving to reinforce Lee after concluding his highly successful Shenandoah Valley Campaign.
Battle of Oak Grove
On June 25, at the Battle of Oak Grove, Confederate forces repulsed McClellan’s attempt to advance his siege artillery approximately one and one-half miles closer to the capital so he could “shell the city and take it by assault.”
Lee Seizes the Initiative at Beaver Dam Creek
On the next day, Lee seized the initiative. Leaving only two divisions to protect Richmond from the bulk of McClellan’s army (four corps positioned south of the Chickahominy River), Lee focused on defeating Brigadier General Fitz John Porter’s 5th Corps, isolated north of the river. Lee’s plan was to defeat Porter’s corps, which formed the right (northern) wing of the Federal army, and then to sever McClellan’s supply line, the York and Richmond Railroad.
Lee’s Plan
Lee’s plan depended upon coordinated assaults by Major General Stonewall Jackson and Major General A. P. Hill. Jackson’s men were to attack and turn Porter’s right flank, forcing the Union general to reinforce his lines with troops stationed at the village of Mechanicsville just north of the Chickahominy River. Meanwhile, Hill’s men would cross the river, take Mechanicsville, and then assault Union defensive works behind Beaver Dam Creek, a short tributary of the Chickahominy.
Federals Repulse Confederates
Events did not unfold as Lee had planned. Jackson’s men, weary from their trip from the Shenandoah Valley, did not arrive on time. By 3 p.m., an impatient Hill crossed the Chickahominy and started the battle without Jackson’s support. The Federals stationed at Mechanicsville gave way to Hill’s frontal assault and withdrew to the Federal defensive works along Beaver Dam Creek near Ellerson’s Mill. There, Porter’s 14,000 Bluecoats, supported by heavy artillery, repulsed Hill’s repeated charges, inflicting heavy casualties on the Confederates.
Meanwhile, Jackson finally arrived near the site of the fighting around 5 p.m. Despite hearing the sounds of the battle three or four miles ahead, Jackson inexplicably ordered his men to make camp for the night. Left to his own resources, Hill attempted one more frontal assault at dusk, which the Northerners also repulsed. The fighting subsided at nightfall.
Outcome
Lee’s first battle as commander of the Army of Northern Virginia was a total tactical failure. Of the 60,000 soldiers he amassed to overpower Porter’s isolated corps, only 16,000 were engaged at the Battle of Beaver Dam Creek. The uncoordinated assault failed to threaten McClellan’s supply lines, and Hill’s repeated attacks lost over 1,300 soldiers, compared with fewer than four hundred casualties for the Federals.
McClellan turned the Confederate defeat into a strategic victory for Lee. Characteristically overestimating the strength of his enemy, McClellan ordered Porter to abandon his entrenchments at Beaver Dam Creek during the night and to fall back to higher ground near Gaines’ Mill. In addition, McClellan shifted his supply line to the James River, abandoning the railroad and giving Lee what he did not achieve on the battlefield.
Timeline
- 1861, July 21 — Confederate forces won the First Battle of Bull Run.
- 1862, March 8–9 — Union and Confederate ironclads fought the inconclusive Battle of Hampton Roads.
- 1862, March 17 — General George B. McClellan launched the Peninsula Campaign with an amphibious landing near Fort Monroe.
- 1862, April 2 — McClellan arrived at Fort Monroe.
- 1862, April 5–May 4 — Union forces won the Siege of Yorktown.
- 1862, May 5 — Union and Confederate forces fought the inconclusive Battle of Williamsburg.
- 1862, May 15 — Confederate forces won the Battle of Drewry’s Bluff.
- 1862, May 31–June 1 — Union and Confederate forces fought the inconclusive Battle of Seven Pines.
- 1862, June 25 — Union and Confederate forces fought the inconclusive Battle of Oak Grove.
- 1862, June 26 — Lee attacked Fitz John Porter’s 5th Corps at the Battle of Beaver Dam Creek, but Union forces repulsed the Confederate assaults.
AP US History
Definition
Battle of Beaver Dam Creek (1862) — The Battle of Beaver Dam Creek was fought near Richmond, Virginia, on June 26, 1862, during the Peninsula Campaign and Seven Days Battles. Robert E. Lee planned a coordinated attack against Fitz John Porter’s isolated 5th Corps, but “Stonewall” Jackson failed to arrive on time. A.P. Hill attacked without Jackson’s support, and Union troops withdrew to strong defenses along Beaver Dam Creek. Porter’s forces repulsed repeated Confederate assaults, but George B. McClellan later ordered Porter to withdraw toward Gaines’ Mill, giving Lee a strategic advantage despite the Union tactical victory.
Alignment
The Battle of Beaver Dam Creek is part of the following AP US History sections:
