last guy to push it in a flood hydrolocked his engine. Probably best to avoid driving at all unless necessary. Its less about how deep the water is as you drive though and more about water sloshing over your truck from other vehicles. based on the photos im seeing of Huston i would not leave my driveway.i've got a stock SRW '19 Denali with 20" wheels and I'm watching the Houston flooding. Anyone have an idea how deep I could ford without drowning out?