Lake Havasu River Mouth depth?

Has anyone recorded the depth at the river mouth in Lake Havasu? This is going from the lake into the river towards the sandbar and needles. I usually can spot the deeper water around the sand bar right there, but last trip was a bit breezy and I had to go off memory. I've seen speed boat just fly right down the shallows, but Im concerned a wakeboat would hit. It looks to be 3-4 feet deep.