On this day, the right wing of the 16th Ohio continued to work on building Bailey's Dam, across the Red River near Alexandria, Louisiana. The left wing, again, moved to the front with other units and engaged the Rebels, finding them in the same location they had been the day before. Pvt. Peter Perrine says they drove the Rebels two miles and camped for the night.

This period military map shows the approximate position of the 16th Ohio's left wing in camp near Alexandria, Louisiana, and a notional route the regiment might have taken when pursuing the Rebels on this day. The right wing of the regiment is shown on the opposite bank of the Red River where they were helping to build Bailey's Dam, on May 6, 1864. The Federal gunboats, under Admiral David Porter, were trapped several miles upstream, above a set of rapids that were not navigable during low water.

This map shows the location of the dam, across the Red River just north of Alexandria, Louisiana, designed by Col. Joseph Bailey and built by troops investing the city and under Gen. Nathaniel Banks, including the 16th Ohio. The right wing of the 16th Ohio was probably the first unit assigned to begin building the dam, part of a desperate effort to raise the river level and allow the Federal gunboats, stranded above the upper rapids, to move down the river to safety. Many other soldiers would join them. The 16th Ohio began work on the east side of the river while other units worked from the west side.