washington u.s. president donald trump thursday agree expand use disaster aid help rebuild puerto rico power grid infrastructure wreck hurricane maria white house say unique agreement recognize massive devastation island dire financial problems aid federal emergency management agency fema infrastructure project release fast flexible way typical disasters senior white house official tell reuters plan agree puerto rico governor ricardo rossello also provide third-party advisers estimate much money require big-ticket project spend provision aim protect taxpayer dollars expect massive long-term effort rebuild island way grant flexibility also impose mutually agree upon set control official say interview new agreement see fema cover 90 percent cost rebuild public infrastructure typical level 75 percent puerto rico home 3.4 million americans bankruptcy struggle 72 billion debt finance put federal control last year six weeks hurricane maria hit 30 percent puerto rico power grid restore private sector estimate total damage maria range high 95 billion white house expect deliver new request disaster aid u.s. congress mid-november help defray cost maria two major hurricanes harvey irma well damage cause wildfires western unite state yet clear big federal tab puerto rico obviously go big dollar figure official say know balk amount money need administration even fema cover 90 percent cost could difficult territorial government put 10 percent top fiscal constraints storm grind economy tax revenues halt federal government provide 150 million loan aid package approve congress last month use help cover share official say want create precedent give 100 percent grant program disincentivizing good stewardship official say federal government also use relatively new procedures create 2013 hurricane sandy know section 428 stafford act law provide federal disaster aid use scale official say procedures allow puerto rico estimate cost big project front help third-party advisers draw approve grant eliminate slow cumbersome process reimburse upfront spend segment agreement also allow puerto rico access hazard mitigation grant normally tap outside disasters rebuild creaky power grid infrastructure structure resilient future hurricanes go build back smart official say exclusive trump boost disaster aid puerto rico rebuild