Spring Creek, formerly a Flint River tributary that now discharges directly into Lake Seminole, drains 585 sq mi in a region of karst topography. As implied by its name, flow in Spring Creek is dominated by ground-water discharge directly into its limestone bed.
From 1977-92, the discharge of the Flint River based on mean daily flows at Newton, Ga., was 4,030 cfs. Mean daily discharge ranged from 922 cfs in 1991 to 47,000 cfs in 1990. Two hydropower dams located on the Flint River impound run-of-the-river reservoirs and do not appreciably influence the flow of the Flint River. The Flint River has one of only 42 free-flowing river reaches longer than 125 mi remaining in the contiguous 48 states (Benke, 1990).
Higher flows during winter months are evident in the annual hydrographs of the Flint River, Ichawaynochaway Creek, and Spring Creek. During winter months, Coastal Plain streams, such as Ichawaynochaway and Spring Creeks, flow for sustained periods through their floodplains.
Text extracted from Couch and others, 1995