Waves overtopped the levees, flooding army camps along the coast. With a higher sea level, these levees may be overtopped more readily during storms. Storm surge also overtopped the seawall in Palm Coast. Hurricane tides overtopped the original embankments in 1926 and 1928 causing over 3,000 deaths. Some water also overtopped a section of the Industrial Canal levee. Wilsons River reached and the levee, finished in 2005, was overtopped. Wilsons River reached and the levee was overtopped for the first time since its completion. In both 1993 and 2008, the flooding river overtopped the reservoir spillway. The first waters overtopped Grand Coulee's spillway on of that year. Boston Borough Council released their CCTV footage of the defences being overtopped and resultant flooding. These dams can be overtopped at high tide and hold water at low tide. Overtopped bridges isolated communities and hampered relief efforts. These were overtopped at high tide, but at low tide their ponds nurtured juvenile salmon. On January 13, 2005, Delaware Dam was nearly overtopped. In 570 or 575, the dam was again overtopped, and this time left unrepaired.