The construction of three marine structures south of the marina - The Electricity Company power-plant port at Ziqim, "Katza" (Pipe line Eilat-Ashqelon Company Ltd.) anchorage, and the three detached breakwaters off Delila beach - have intensified and accelerated the destruction processes on the Ashqelon coast. These constructions act as sand traps obstructing the natural flow of sand from south to north (sediments accumulate south of the structure and abrasion occurs to the north). Subsequent to the construction of the Ashqelon marina, remnants and cargos of some 10 wrecked sea vessels were exposed on the sea floor. Immediately upon exposure, ancient finds (that had been protected under layers of sediment for thousands of years) are exposed to rapid destruction by sea waves and currents, and treasure seekers.

Human interference on the coastal system has intensified the destruction and has badly eroded the ancient city situated in the path of the waves. Long sections of the sea wall have been destroyed and have fallen into the sea. The last part remaining of the sea wall is in imminent danger of collapse.