Fargo officials are calling in more National Guard troops and asking people to stay off major streets to protect against flooding that could ravage the city in the coming days.

Fargo Mayor Dennis Walaker says they are adding 800 members of the guard from North Dakota and South Dakota to patrol dikes for breaches, on top of the 900 troops already in place. He is asking residents to stay off the roads to keep streets clear for sandbag trucks.

The river had risen to 40.32 feet early Friday -- more than 22 feet above flood stage and inches more than the previous high water mark of 40.1 feet set in 1897. It was expected to crest as high as 43 feet on Saturday. Fargo's main dike protects the city at the 43-foot level.