DES MOINES, Iowa (AP) — State transportation officials say Interstate 29 in western Iowa is in the path of the rising Missouri River, and parts could be closed within days.

The Department of Transportation on Tuesday released an initial assessment of the state and federal highways most at risk.

It includes I-29, U.S. 275 and Iowa 333 in Hamburg, where a massive sandbagging operation is under way to protect the town. Other parts of I-29 are on the list, including north of Council Bluffs, near Crescent and near Loveland. A section of Interstate 680 in Council Bluffs is also at risk.

Officials have also included Iowa Highway 2 in Fremont County and state Highway 127 near Mondamin (mahn-DAY’-min) in Harrison County.

The DOT says it will update the list as the river rises.