OMAHA, Neb. (AP) — Federal officials say the amount of water flowing down the lower Missouri River this year is approaching the 2011 record and a third round of flooding is expected this week after unusually heavy rains upstream.

Heavy rains dumped more than four times normal in parts of Montana, Nebraska, North and South Dakota last week. That triggered flood warnings and forced the forecast for how much water will flow down the Missouri River to jump to 58.8 million acre feet. That will be second only to 2011’s 61 million acre feet.

The Corps of Engineers doesn’t expect major problems or threats to cities with the latest flooding — provided the temporary repairs made to levees since the spring hold up. But communities along the river are bracing for problems.

Downstream, residents of Hamburg, Iowa, will be keeping a close eye on the repaired levees around their town that was inundated in the spring to be sure the patches will hold up. Completely repairing the levees damaged in the spring is likely to take several years and cost more than $1 billion. “Anybody I talk to I tell them to be prepared,” said Mike Crecelius, the emergency manager in the southwest Iowa county that’s home to Hamburg. “There’s been no relief at all this year.”

In March, massive flooding caused more than $3 billion in damage in Nebraska, Iowa, Kansas and Missouri. In June, flooding returned and inundated many of the same places because most damaged levees remained broken. The river will remain high throughout the fall because the Corps of Engineers plans to continue releasing large amounts of water into the river to clear out space in the reservoirs ahead of winter.