State transportation agencies in North Carolina and Tennessee are still assessing damage from the storm, forecasting a months-long effort to repair hard-hit critical arteries such as Interstate-40.
After fast growth from Category 2 to Category 4 in two days, storm made landfall near Cameron, La., early on Aug. 27, but earlier predicted "unsurvivable" storm surge was less than anticipated.
Federal officials call for changes to national pipeline regulations a little more than a year after the September 2018 natural gas explosions and fires north of Boston and just days before another leak hit the area.