"The destruction south of Lincoln Avenue, it's complete," he said.
Town officials plan to meet with business owners and help them rebuild, said Seaside Park Town Administrator Robert Martucci. Akers added that the town will also assess the damage.
"If there's a silver lining, we just built it. We have the specs. We know what we're doing," the mayor said. "We'll get it back up."
Sundermann's son, Jake, probably summed up the sentiments of business owners affected by the fire when he said he was distraught "after walking up here after Sandy and seeing homes, buildings, everything just flooded, torn -- everything with sand. And all of a sudden, everyone rebuilds, and not even a year later, it all burns."
His father, though, said the response to Sandy gave him optimism.
"I'm not ever going to get used to it, but I've dealt with it before. I didn't have that kind of hopeless feeling I had after the storm," he said. "Now I know that things can be done and we'll get back together and get it open."
Authorities are not sure what caused the fire, but Martucci said it started at Kohr Brothers Frozen Custard shop on the FunTown Amusement Pier about 2:15 p.m. Martucci was at a meeting at town offices across the street when it began.
The fire escalated to six alarms shortly before 4 p.m. ET.
Sandy destroyed the FunTown Pier, which had been partially reopened this summer. The storm also damaged local water systems, and firefighters struggled with the supply Thursday, Christie said.
They had to tap into Barnegat Bay seawater to extinguish the flames.