These two shots tell the story. Over the road between the boardwalk and playground, the sand was 3-4 feet. The picnic tables had 2 feet of sand over their tops! Workers estimate the average depth at the south end of the park was 4 to 5 feet!
The water in the foreground in the next shot is NOT the river; it is the outflow from the drainage ditch. A giant sand bar now entirely closes off the boat ramp. This shot was taken from the parking lot. The dune is an estimated 15 feet tall. Notice how you cannot see the river which is on the other side. You can only see the tree tops!