By the evening of the 13th Hancock's corps was at Charles City Court House on the James River.

Burnside's and Wright's corps were on the Chickahominy, and crossed during the night, Warren's corps and the cavalry still covering the army.

The material for a pontoon bridge was already at hand and the work of laying it was commenced immediately, under the superintendence of Brigadier-General Benham, commanding the engineer brigade.

On the evening of the 14th the crossing commenced, Hancock in advance, using both the bridge and boats.
When the Wilderness campaign commenced the Army of the Potomac, including Burnside's--which was a separate command until the 24th of May when it was incorporated with the main army--numbered about 116,000 men.
During the progress of the campaign about 40,000 reinforcements were received.

At the crossing of the James River June 14th-15th the army numbered about 115,000.