▁still ▁serves ▁as ▁a ▁water ▁supply ▁for ▁the ▁L ack aw anna ▁Valley . ▁Several ▁brid ges ▁have ▁also ▁been ▁constructed ▁across ▁the ▁stream ▁in ▁the ▁ 2 0 th ▁century . ▁The ▁stream ▁has ▁been ▁part ▁of ▁several ▁studies ▁since ▁ 1 9 7 0 . ▁Part ▁of ▁its ▁length ▁is ▁navig able ▁by ▁k ay aking , ▁p add ling , ▁and ▁ra ft ing . ▁ ▁Cour se ▁Spring ▁Brook ▁begins ▁near ▁Inter state ▁ 3 8 0 ▁in ▁Cov ington ▁Township , ▁L ack aw anna ▁County . ▁It ▁flows ▁south ▁for ▁a ▁short ▁distance ▁before ▁me and ering ▁west ▁for ▁a ▁few ▁miles , ▁crossing ▁Inter state ▁ 3 8 0 ▁and ▁entering ▁Spring ▁Brook ▁Township . ▁The ▁stream ▁then ▁turns ▁south ▁for ▁several ▁t enth s ▁of ▁a ▁mile ▁before ▁turning ▁north west ▁for ▁several ▁t enth s ▁of ▁a ▁mile . ▁It ▁turns ▁south west ▁before ▁turning ▁north - n orth west ▁and ▁flow ing ▁around ▁The ▁Hog back . ▁On ▁the ▁northern ▁side ▁of ▁that ▁hill , ▁the ▁stream ▁turns ▁south ▁and ▁then ▁north west , ▁entering ▁the ▁Wat res ▁Res er voir . ▁The ▁stream ▁ex its ▁the ▁res er voir ▁on ▁its ▁western ▁side ▁and ▁flows ▁north west ▁for ▁a ▁few ▁miles , ▁passing ▁P inn acle ▁Hill ▁and ▁receiving ▁the ▁trib ut aries ▁Pan ther ▁Creek ▁and ▁Pl ank ▁Bridge ▁Creek ▁from ▁the ▁left . ▁It ▁eventually ▁b ends ▁east ▁and ▁enters ▁the ▁N es b itt ▁Res er voir ▁after ▁crossing