▁became ▁super int ending ▁engineer ▁of ▁the ▁Er ie ▁Railway , ▁where ▁he ▁worked ▁with ▁Daniel ▁Mc Call um . ▁With ▁James ▁P . ▁Kirk wood ▁Adams ▁designed ▁the ▁stone ▁arch ▁Star ru cca ▁Vi ad uct , ▁which ▁was ▁built ▁in ▁ 1 8 4 7 - 1 8 4 8 ▁by ▁New ▁York ▁and ▁Er ie ▁Rail road . ▁In ▁ 1 8 5 1 ▁he ▁also ▁was ▁editor ▁of ▁App let ons ' ▁Mechan ics ' ▁Magazine . ▁In ▁ 1 8 5 2 ▁he ▁moved ▁to ▁Kentucky , ▁was ▁chief ▁engineer ▁of ▁the ▁Central ▁Rail road , ▁and ▁in ▁ 1 8 5 5 ▁of ▁the ▁M emph is ▁and ▁Ohio ▁Rail road . ▁ ▁In ▁ 1 8 5 6 , ▁he ▁switched ▁from ▁rail road ▁engineering ▁to ▁design ▁and ▁super v ise ▁the ▁first ▁large - scale ▁urban ▁se wer ▁system ▁in ▁the ▁United ▁States ▁for ▁Brook lyn , ▁New ▁York . ▁In ▁ 1 8 6 0 ▁he ▁became ▁an ▁engineer ▁for ▁New ▁H aven ' s ▁water ▁works . ▁ ▁During ▁the ▁Civil ▁War , ▁he ▁became ▁a ▁colon el ▁in ▁the ▁ 6 7 th ▁New ▁York ▁Vol unte ers ▁and ▁served ▁in ▁Army ▁of ▁the ▁Pot om ac . ▁W ounded ▁in ▁the ▁ 1 8 6 2 ▁Battle ▁of ▁Seven ▁P ines ▁in ▁Virginia , ▁he ▁res igned ▁and ▁returned ▁to ▁Brook lyn . ▁During ▁the ▁ 1 8 6 3 ▁New ▁York ▁City ▁draft ▁ri ots , ▁he ▁commanded ▁the ▁troops