The passageway to the Hamptons was shut down for about two hours Friday morning after a Long Island Power Authority crew broke open a gas main.
LIPA crews were drilling to install new utility poles on County Road 39 when they hit the main. The road was closed and some businesses needed to evacuate.
"It was just a tunnel of brown smoke," said Patty Presti, of Southampton.
LIPA claims the gas main break was not its fault, saying the blame lies with whoever incorrectly marked the spot for the new poles. KeySpan is working to fix the main.
One employee of Southampton Brick and Tile fell unconscious for about 30 minutes.
"The hospital said it was the gas," Presti said of her co-worker falling ill.