CORPUS CHRISTI, Texas - The rain was so torrential along Interstate 45 coming out of Galveston as Hurricane Harvey settled over southeast Texas that motorists had to stop under bridges to avoid driving in whiteout conditions.

  

The downpour on Saturday has also caused minor street flooding along a highway in Dickinson, about 25 miles northwest of Galveston.

  

Harvey, the fiercest hurricane to hit the U.S. in more than a decade, made landfall Friday night about 30 miles (48 kilometers) northeast of Corpus Christi as a Category 4 storm with 130 mph (209 kph) winds.

  

It gradually weakened over the next several hours and the National Hurricane Center said that by 5 a.m. Saturday Harvey was downgraded to a Category 1.