The rivers kept raging Sunday as more Nebraskans and Iowas fled to shelters, first responders kept working through their exhaustion, and scores of volunteers offered supplies, food, and prayers. The head of the Nebraska State Patrol said the recovery would be a "marathon". With highways closed and farmland flooded, no one could offer a solid projection on how long it might take to put Nebraska back to where it was a month ago.The immediate concern Sunday was for those still stranded, or isolated. The state organized a supply convoy of eight trucks and escorted them over damaged and closed highways to reach Fremont. Residents of North Bend were ordered to evacuate because there was no working water or sewer system in the Dodge County community.