Ike stormed ashore on Sept. 13, 2008, leaving behind sinkholes in the sidewalk atop the tourist-popular seawall and damaging the rock groins.
Engineer Don Carelock says the Corps has estimated the repairs will cost $18 million. The fix is being paid for with federal funding.
Carelock says the seawall along the Gulf of Mexico is structurally sound.
Carelock says the sandy fill below the seawall washed away when waves crashed over the barrier. He says more sinkholes emerged in the months after Ike, with recent, unusually high tides causing more damage.