On To Richmond
Instead of marching overland, McClellan decided to take advantage of Union control of the inland waters and transport his army, with its vast supplies and materiel, down the Potomac River and across Chesapeake Bay to the tip of the peninsula between the York and James Rivers. Then with his supply ships steaming up the York, he planned to march northwestward up the peninsula, join another force under Gen. Irvin McDowell marching overland from Washington, and together, converge on Richmond.
McClellan’s plan of attack. Painting by Sidney King.
To accomplish this, McClellan undertook the largest amphibious operation ever attempted in the western world. Over 400 steam vessels, brigs, schooners, sloops, ferry boats, and barges assembled on the Potomac River. In March 1862 these vessels ferried the Army of the Potomac, with its 3,600 wagons, 700 ambulances, 300 pieces of artillery, 2,500 head of cattle, and over 25,000 horses and mules, to the southeast coast of Virginia. As Q. M. Gen. Rufus Ingalls reported: “Operations so extensive and important as the rapid and successful embarkation of such an army, with all its vast equipment, its transfer to the peninsula, and its supply while there, had scarcely any parallel in history.”
Up The Peninsula
After landing at Fortress Monroe the Federal troops pushed aside the thinly held Confederate defenses at Yorktown and Williamsburg and proceeded up the peninsula according to plan. But progress was slow. Every day 500 tons of forage and subsistence were required to keep the army in the field. Early in May it rained and kept raining, day after dreary day. Federal soldiers had a saying: “Virginia used to be in the Union—now it’s in the mud.” Dirt roads turned into bottomless muck—creeks and gullies became swift flowing streams—fields were swamps. Roads and bridges had to be built and rebuilt, and still the thousands of wagons, horses, and mules continually stuck in the mud.
Sumner’s troops crossing Grapevine Bridge to reinforce Coach at Seven Pines. From a contemporary sketch.
Realizing that an effective overland pursuit of the retreating Confederate forces under Gen. Joseph E. Johnston was out of the question because of the weather and the condition of the roads, McClellan on May 6 sent Gen. William B. Franklin’s division up the York River by transport to West Point, terminus of the Richmond and York River Railroad, in an attempt to cut off the Confederate wagon train. Johnston anticipated the move, however, and on May 7 ordered Gen. W. H. C. Whiting’s troops to attack Franklin in the battle of West Point, or Eltham’s Landing.