Template:PetersburgSeigeEnd

At the completion of Fort Tracy the Union line around Petersburg was 32 miles in length, with some 36 forts and 50 gun batteries.

With the general advance of Union troops on 2 Apr 1865 toward Petersburg, the Confederate line was broken and overnight General Robert E. Lee withdrew his troops from Petersburg ending the seige on 3 Apr 1865. The whole of the Union army followed Lee toward Appomattox and in a series of actions that rendered escape impossible, Lee was forced to surrender on 9 Apr 1865. The seige line fortifications around Petersburg were effectively abandoned on or about 3 Apr 1865, some 9 months after the seige began.