Suvorov's leading units under Miloradovich joined Auffenberg's troops at Bristen Mountain at 6:00 am on 26 September. The battalion of the 76th Line that formed the French rearguard was unable to hold back the Allies who crossed the remnants of the Charstelenbach bridge at Amsteg. There was another skirmish in front of Altdorf before the French retreated to Seedorf on the west bank, covered by an attack from a column of grenadiers. Lecourbe worried that Suvorov's soldiers might break out of the upper Reuss valley to the west in an attempt to reach Lucerne. Therefore, he tried to keep the Allies confined to the east bank of the Reuss. He maintained two cannons in a small redoubt on the east bank near Seedorf. Lecourbe posted the 2nd Battalion of the 38th Line at Erstfeld and burned the bridge there and at Attinghausen. He even sent Loison with some troops west across the Surenen Pass to Engelberg. The Austrian Gradiscaner Grenz Infantry were ordered to cross the Reuss at Erstfeld but they found it impossible.