Hey, Rivrguy, let's add a couple more feet to the base sea-level. I am not sure if the Chehalis has ever had such floods but in the early 1860's the "Big One's" discharge through the Golden Gate was 20' above sea level. Now, add in all the impervious surface we have now.... Plus, this was thought to be a millennial flood until studies showed a bigger one in the 1600s. So, it was a 200 year flood. Glad you rode this one out.