The U.S. Army Corps of Engineers, Jacksonville District is advising boaters on the Okeechobee Waterway that they could encounter delays as they navigate through Ortona Lock due to repairs. The Corps has developed an alternate locking schedule that will be in effect during replacement of guide walls on either side of the lock. The schedule will be in effect when work obstructs the navigation channel or whenever divers are in the area. The repair work is expected to last through the rest of the summer.