Word reached Brooklyn early on Saturday morning that the Americans had stolen a march and the Bangor Rifles were already across the bridge on the Ste Croix. General MacDonald send messengers to the garrisons at Newport Landing and Poplar Grove to march to the Ste Croix bridge on the Windsor Road and headed out himself with the two battalions he had with him.
At last General Wavey saw the British 89th fall back from the bridge and ordered the 7th New York Dragoons to charge over the bridge and force an opening for the remaining US infantry to exploit.
General Wavy quickly improvised a rearguard but the British had taken too much of a pounding to pursue.
Both armies returned to camp and started preparing for the next battle.