A main highway to the Oregon coast reopened Wednesday after it was blocked for a day by a huge mudslide.

Traffic on U.S. 30 near Clatskanie was limited to one lane with flaggers "so expect some delays," said Dave Thompson, Oregon Department of Transportation spokesman.

Crews planned to close the highway again at 7:30 a.m. today for more repair work but it would reopen by 5:30 p.m. today, Thompson said.

Most of the mud and debris had been cleared from the road but clogged culverts blocked water from draining along the highway and the runoff was crossing the road until crews used heavy equipment to clear some jams.

Nobody was injured in the slide Tuesday that covered an estimated three football fields in length near Clatskanie. But two homes were destroyed and others were hit by the slide.

U.S. 30 runs along the Columbia River, linking Portland to Astoria on the coast. The area hit by the slide was part of the region damaged by recent major storms.

Mudslides are not uncommon in a region with steep slopes, weak rock beneath the soil and heavy winter rains, said Jason Hinkle, a geotechnical specialist with the Oregon Department of Forestry.

More than 10 inches of rain fell on some parts of the Oregon Coast Range during the two storms.

"When you get that much water in that soil, it's basically a lubricant," said Rod Nichols, a spokesman for the forestry department.