 With the agreement of Kaufmann and the engineers , True also devised an innovative color @-@ coding for the pipes and machinery , which was implemented throughout all BOR projects . True 's consulting artist job lasted through 1942 ; it was extended so he could complete design work for the Parker , <unk> and Grand <unk> dams and power plants . True 's work on the Hoover Dam was <unk> referred to in a poem published in The New Yorker , part of which read , " lose the spark , and justify the dream ; but also worthy of remark will be the color scheme " . 
