Considering the heavy state of the roads, and the fact that Gustavus would have in the last three miles of his march to traverse a morass crossed by a bridge over which only two persons could pass abreast, he felt confident that the attack could not be made until the following morning.
Mounted messengers were sent in all directions to bring up his troops from the villages in which they were posted, and in the meantime the troops stationed around Lutzen were employed in preparing obstacles to hinder the advance of the Swedes.

On either side of the roads was a low swampy country intersected with ditches, and Wallenstein at once set his men to work to widen and deepen these ditches, which the troops as they arrived on the ground were to occupy.

All night the troops laboured at this task.
In the meantime Gustavus had found the distance longer and the difficulties greater than he had anticipated; the roads were so heavy that it was with difficulty that the artillery and ammunition wagons could be dragged along them, and the delay caused by the passage of the morass was very great.
Indeed the passage would have been scarcely possible had the men of an Imperial regiment of cuirassiers and a battalion of Croats, who were posted in a village on the further side of the morass, defended it; but instead of doing so they fell back to an eminence in the rear of the village, and remained there quietly until, just as the sun set, the whole Swedish army got across.

The cuirassiers and Croats were at once attacked and put to flight; but as darkness was now at hand it was impossible for Gustavus to make any further advance, and the army was ordered to bivouac as it stood.

The state of the roads had defeated the plans of Gustavus.