The following time series shows beach width averaged over sections of Imperial Beach.
North IB spans the area from the pier to Camp Surf.
South IB spans the area from the end of Seacoast Drive to the pier.
South of Seacoast Dr. spans the area from approximate river mouth location to the end of Seacoast Drive.

Hover over a spot on the time series to examine the date and associated beach width.

To zoom on a specific section, click and drag the box on the plot. To reset, right click.