0 7 ▁when ▁construction ▁began ▁on ▁one ▁of ▁several ▁d ams ▁that ▁would ▁eventually ▁create ▁the ▁Ash ok an ▁Res er voir , ▁a ▁water ▁body ▁built ▁by ▁New ▁York ▁City ▁to ▁increase ▁its ▁water ▁supply . ▁In ▁the ▁initial ▁stages ▁of ▁construction , ▁seven ▁villages ▁in ▁the ▁res er voir ' s ▁dimensions ▁were ▁destroyed ▁and ▁ ▁of ▁roads ▁were ▁taken ▁out ▁of ▁service . ▁The ▁latter ▁were ▁to ▁be ▁replaced ▁with ▁ ▁of ▁new ▁roads ▁and ▁ 1 0   brid ges ▁carrying ▁the ▁high ways ▁around ▁the ▁res er voir ' s ▁per imeter . ▁According ▁to ▁a ▁ 1 9 0 9 ▁court ▁order , ▁the ▁roads ▁and ▁brid ges ▁would ▁be ▁built ▁and ▁maintained ▁by ▁New ▁York ▁City ▁in ▁perpet u ity ▁to ▁ensure ▁that ▁the ▁residents ▁disp la ced ▁by ▁the ▁new ▁res er voir ▁would ▁not ▁be ▁perman ently ▁isolated . ▁The ▁city ' s ▁Board ▁of ▁Est imate ▁initially ▁b alk ed ▁at ▁the ▁measure , ▁cit ing ▁the ▁mand ate ▁as ▁their ▁primary ▁reason ▁for ▁reject ing ▁a ▁June   2 0 , ▁ 1 9 1 3 , ▁request ▁by ▁the ▁city ' s ▁Board ▁of ▁Water ▁Supp ly ▁for ▁$ 1 . 3   mill ion ▁( equ ivalent ▁to ▁$ ▁in ▁) ▁to ▁p ave ▁the ▁per imeter ▁roads . ▁ ▁In ▁order ▁to ▁fill ▁the ▁res er voir , ▁the ▁per imeter ▁of ▁the ▁water ▁body — and ▁thus , ▁the ▁roads ▁built ▁along ▁it — had ▁to ▁be ▁completed