Crist Engineers, Inc. served as the prime consultant for the Jim Hinkle Spring River State Fish Hatchery Improvements, providing mechanical, hydraulic, and electrical design. Key upgrades included custom mechanical screens to handle high vegetative debris, UV disinfection to prevent disease, and the replacement of aging tanks with optimized concrete raceways. Crist also led hydraulic modeling and coordinated with structural, geotechnical, and aquaculture experts to improve water quality and fish health. The result: a modernized facility capable of producing over one million trout annually for Arkansas waters.