I should also mention that the Ventura river is hard off the back of the grandstands to the north of the Fairgrounds, coming down out of the foothills from Ojai. Granted it's just a trickle most of the time but I've also seen motorhomes floating under the US 101 bridge and out to sea (along with boulders the size of houses from 50 miles upstream), so water management is definitely an issue when things turn stormy on the coast.