Sheridan decided to force a crossing of the river at Meadow Bridge, where the Virginia Central Railroad crossed the river. Confederates had earlier dismantled the flooring on the road part of the bridge, rendering it temporarily useless, although the rest of the bridge was intact. Sheridan assigned the Michigan brigade of Brig. Gen. George A. Custer, part of Brig. Gen. Wesley Merritt's division, to seize the span and the high bluffs beyond. The rest of Sheridan's command had to hold the Confederates at bay while Custer executed his orders. The other two brigades in Merritt's division, commanded by Colonels Thomas C. Devin and Alfred Gibbs, guarded the center of the Union line to protect against Confederate advances out of the Richmond fortifications. On the western end of the Union line, near Brook Church, the division of Brig. Gen. David McM. Gregg had to resist the advance of Brig. Gen. James B. Gordon's brigade. On the eastern end, Brig. Gen. James H. Wilson was to oppose any Confederate advances along Meadow Bridge road and Mechanicsville Pike.