ates ▁think ▁that ▁ra ft s ▁were ▁being ▁constructed ▁for ▁a ▁crossing ▁north ▁of ▁the ▁city . ▁His ▁art illery , ▁commanded ▁by ▁Capt . ▁Eli ▁L illy , ▁bomb arded ▁the ▁city ▁from ▁String er ' s ▁R idge ▁for ▁two ▁weeks , ▁an ▁operation ▁sometimes ▁known ▁as ▁the ▁Second ▁Battle ▁of ▁Ch att ano oga . ▁The ▁de ception ▁worked ▁and ▁B rag g ▁was ▁convinced ▁that ▁the ▁Union ▁crossing ▁would ▁be ▁above ▁the ▁city , ▁in ▁conj unction ▁with ▁Burn side ' s ▁adv ancing ▁Army ▁of ▁the ▁Ohio ▁from ▁Kno x ville . ▁ ▁The ▁first ▁crossing ▁of ▁the ▁Tennessee ▁River ▁was ▁accomplished ▁by ▁the ▁XX ▁Corps ▁at ▁Cap erton ' s ▁Fer ry , ▁ 4 ▁miles ▁from ▁Stevens on ▁on ▁August ▁ 2 9 , ▁where ▁construction ▁began ▁on ▁a ▁ 1 , 2 5 0 - foot ▁p onto on ▁bridge . ▁The ▁second ▁crossing , ▁of ▁the ▁XIV ▁Corps , ▁was ▁at ▁Sh ell m ound , ▁Tennessee , ▁on ▁August ▁ 3 0 . ▁They ▁were ▁quickly ▁followed ▁by ▁most ▁of ▁the ▁XX I ▁Corps . ▁The ▁fourth ▁crossing ▁site ▁was ▁at ▁the ▁mouth ▁of ▁Battle ▁Creek , ▁Tennessee , ▁where ▁the ▁rest ▁of ▁the ▁XIV ▁Corps ▁crossed ▁on ▁August ▁ 3 1 . ▁Without ▁permanent ▁brid ges , ▁the ▁Army ▁of ▁the ▁C umber land ▁could ▁not ▁be ▁supplied ▁reli ably , ▁so ▁another ▁bridge ▁was ▁constructed ▁at ▁Bridge port ▁by ▁Maj . ▁Gen . ▁Philip ▁Sher idan ' s ▁division , ▁sp