Captain Schulz took temporary charge of the District in the summer of 1907 in addition to his regular duties as Missouri River District Engineer. Schulz published the first regulations governing the operation of the headwaters dams as multi-purpose reservoirs, which included flood control, water for manufacturing, releases for floating logs, maintenance of a 5-foot channel at St. Paul, and water for occasional steamboat runs between Brainerd and Grand Rapids. He also determined what effect channel maintenance for all navigable rivers in the District would have had on railroad rates.