1 0 ▁D ART ▁officials ▁war ned ▁that ▁the ▁first ▁two ▁phases ▁of ▁the ▁Orange ▁Line ▁might ▁be ▁delayed ▁due ▁to ▁T X D OT ▁problems ▁along ▁State ▁Highway ▁ 1 1 4 , ▁which ▁the ▁Orange ▁Line ▁route ▁follows . ▁Util ity ▁re location ▁and ▁road ▁construction ▁was ▁expected ▁to ▁delay ▁access ▁to ▁port ions ▁of ▁the ▁construction ▁area ▁where ▁the ▁rail ▁line ▁and ▁highway ▁intersect . ▁D ART ▁estimated ▁that ▁the ▁delay ▁could ▁push ▁the ▁opening ▁of ▁the ▁Las ▁Col inas ▁extension ▁from ▁December ▁ 2 0 1 1 ▁to ▁August ▁ 2 0 1 2 ; ▁however , ▁D ART ▁also ▁ad vised ▁that ▁it ▁was ▁determined ▁to ▁keep ▁the ▁original ▁schedule ▁and ▁minim ize ▁any ▁del ays . ▁ ▁In ▁June ▁ 2 0 1 0 , ▁D ART ▁placed ▁new ▁Orange ▁Line ▁construction ▁on ▁in defin ite ▁hold ▁due ▁to ▁decl ining ▁re venue . ▁ ▁However , ▁on ▁September ▁ 1 5 , ▁ 2 0 1 0 , ▁the ▁ag ency ▁said ▁that ▁due ▁to ▁cost ▁sav ings ▁and ▁federal ▁funds , ▁the ▁plans ▁for ▁the ▁line ▁have ▁been ▁rev ived . ▁ ▁On ▁December ▁ 1 3 , ▁ 2 0 1 1 , ▁D ART ▁awarded ▁a ▁contract ▁to ▁design ▁and ▁build ▁the ▁Orange ▁Line ▁extension ▁from ▁B elt ▁Line ▁Road ▁to ▁D F W ▁Airport , ▁val ued ▁at ▁about ▁$ 1 5 0 ▁million , ▁with ▁construction ▁to ▁start ▁in ▁early ▁ 2 0 1 2 ▁and ▁an ▁opening ▁date ▁of ▁August