Heartbreaking scenes of record flooding and devastation along the Brazos River Tuesday in southeast Texas.

Aerial video shows cattle in deep floodwater searching for higher ground with no pasture in sight.

Not far away, horses took shelter on someone's front porch because it was the only place to avoid the rising water.

Authorities ordered mandatory evacuations along the swollen Brazos River, where so far six people have died in the flood.

In Fort Bend County near Houston, people are taking what they can and fleeing on boats. There were reports of dozens of rescues in the last 24 hours.

After days of torrential rain, the river is expected to crest at a record level of 53-feet. Emergency officials said this is the worst flooding in more than 100 years.