Respect the barrier! Don't drive around, and risk your safety. Find another way.
Do not walk through moving water. Six inches of moving water can make you fall.
Do not drive into flooded areas. You and the vehicle can be quickly swept away. Six inches of water will reach the bottom of most passenger cars, causing loss of control and possible stalling.
A foot of water will float many vehicles. Two feet of rushing water can carry away most vehicles, including sport utility vehicles and pick-ups.